Commit Graph

1249 Commits

Author SHA1 Message Date
Alan Cox
f10140fbe5 port_fixups: Fix ups for tty port changes
I missed the cpm_uart one. Thanks to Kumar Gala for reporting it. A double
check found samsung also needed fixing up.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22 13:03:29 -07:00
Anton Vorontsov
768aec0b5b serial: 8250: fix shared interrupts issues with SMP and RT kernels
With SMP kernels _irqsave spinlock disables only local interrupts, while
the shared serial interrupt could be assigned to the CPU that is not
currently starting up the serial port.

This might cause issues because serial8250_startup() routine issues
IRQ-triggering operations before registering the port in the IRQ chain
(though, this is fine to do and done explicitly because we don't want to
process any interrupts on the port startup).

With RT kernels and preemptable hardirqs, _irqsave spinlock does not
disable local hardirqs, and the bug could be reproduced much easily:

$ cat /dev/ttyS0 &
$ cat /dev/ttyS1
irq 42: nobody cared (try booting with the "irqpoll" option)
Call Trace:
[C0475EB0] [C0008A98] show_stack+0x4c/0x1ac (unreliable)
[C0475EF0] [C004BBD4] __report_bad_irq+0x34/0xb8
[C0475F10] [C004BD38] note_interrupt+0xe0/0x308
[C0475F50] [C004B09C] thread_simple_irq+0xdc/0x104
[C0475F70] [C004B3FC] do_irqd+0x338/0x3c8
[C0475FC0] [C00398E0] kthread+0xf8/0x100
[C0475FF0] [C0011FE0] original_kernel_thread+0x44/0x60
handlers:
[<c02112c4>] (serial8250_interrupt+0x0/0x138)
Disabling IRQ #42

After this, all serial ports on the given IRQ are non-functional.

To fix the issue we should explicitly disable shared IRQ before
issuing any IRQ-triggering operations.

I also changed spin_lock_irqsave to the ordinary spin_lock, since it
seems to be safe: chain does not contain new port (yet), thus nobody
will interfere us from the ISRs.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22 13:03:28 -07:00
Alan Cox
9e98966c7b tty: rework break handling
Some hardware needs to do break handling itself and may have partial
support only. Make break_ctl return an error code. Add a tty driver flag
so you can indicate driver hardware side break support.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22 13:03:28 -07:00
Alan Cox
1aa3692da5 ttydev: Fix up compile failures in the PPC build
Fix up a couple of reported merge problems

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22 13:03:22 -07:00
Haavard Skinnemoen
b1d1619b4a atmel_serial: Fix tty_port breakage
The tty pointer has been moved into a tty_port field, so we need to use
->info->port.tty instead of just ->info->tty. Fixes these build errors:

David Brownell <david-b@pacbell.net> wrote:
> drivers/serial/atmel_serial.c: In function 'atmel_rx_from_ring':
> drivers/serial/atmel_serial.c:665: error: 'struct uart_info' has no member named 'tty'
> drivers/serial/atmel_serial.c: In function 'atmel_rx_from_dma':
> drivers/serial/atmel_serial.c:672: error: 'struct uart_info' has no member named 'tty'
> drivers/serial/atmel_serial.c: In function 'atmel_startup':
> drivers/serial/atmel_serial.c:797: error: 'struct uart_info' has no member named 'tty'
> make[2]: *** [drivers/serial/atmel_serial.o] Error 1

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:37 -07:00
Takashi Iwai
a88487c79b Fix compile errors in SGI console drivers (linux-next tree)
The below is the patch to replace blindly all possible places,
including Jack's fixes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
(Reviewed and checked rather than blindly added)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:36 -07:00
Jack Steiner
b1ca7e7a0b - Fix compile errors in SGI console drivers (linux-next tree)
Fix compile errors in SGI console drivers caused by changes to the
tty_port structures in the linux-next tree.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:36 -07:00
Stephen Rothwell
87c25ef0a4 ttydev: fix pamc_zilog for tty pointer move
Today's linux-next build (powerpc allyesconfig) failed like this:

drivers/serial/pmac_zilog.c: In function 'pmz_receive_chars':
drivers/serial/pmac_zilog.c:245: error: 'struct uart_info' has no member named 'tty'
drivers/serial/pmac_zilog.c:250: error: 'struct uart_info' has no member named 'tty'

I applied the patch below (which builds but may, or may not, be correct).
--
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:36 -07:00
Stephen Rothwell
2f7a697a13 ttydev: fix pamc_zilog for tty pointer move
Today's linux-next build (sparc64 defconfig) failed like this:

drivers/serial/sunhv.c: In function `receive_chars':
drivers/serial/sunhv.c:188: error: structure has no member named `tty'
drivers/serial/sunsu.c: In function `receive_chars':
drivers/serial/sunsu.c:314: error: structure has no member named `tty'
drivers/serial/sunsab.c: In function `receive_chars':
drivers/serial/sunsab.c:121: error: structure has no member named `tty'

I applied the following patch (which, again, may not be correct).

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:35 -07:00
Alan Cox
df4f4dd429 serial: use tty_port
Switch the serial_core based drivers to use the new tty_port structure.
We can't quite use all of it yet because of the dynamically allocated
extras in the serial_core layer.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:35 -07:00
Adrian Bunk
d87a6d951c drivers/serial/: remove CVS keywords
This patch removes CVS keywords that weren't updated for a long time in
comments, printk's and MODULE_DESCRIPTION's (no printk's or
MODULE_DESCRIPTION's are completely removed).

While doing this I also found and fixed a missing \n in a printk
in m32r_sio.c

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:35 -07:00
Haavard Skinnemoen
9afd561aca Subject: [PATCH 2/2] atmel_serial: Implement flush_buffer() hook
Avoid dumping garbage to the serial port when the tty is flushed. This
tends to happen when rebooting from a serial console.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:34 -07:00
Haavard Skinnemoen
6bb0e3a59a Subject: [PATCH 1/2] serial: Add flush_buffer() operation to uart_ops
Serial drivers using DMA (like the atmel_serial driver) tend to get very
confused when the xmit buffer is flushed and nobody told them.  They
also tend to spew a lot of garbage since the DMA engine keeps running
after the buffer is flushed and possibly refilled with unrelated data.

This patch adds a new flush_buffer operation to the uart_ops struct,
along with a call to it from uart_flush_buffer() right after the xmit
buffer has been cleared. The driver can implement this in order to
syncronize its internal DMA state with the xmit buffer when the buffer
is flushed.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 17:12:34 -07:00
Bjorn Helgaas
57fd51a8be PNP: add pnp_possible_config() -- can a device could be configured this way?
As part of a heuristic to identify modem devices, 8250_pnp.c
checks to see whether a device can be configured at any of the
legacy COM port addresses.

This patch moves the code that traverses the PNP "possible resource
options" from 8250_pnp.c to the PNP subsystem.  This encapsulation
is important because a future patch will change the implementation
of those resource options.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-07-16 23:27:06 +02:00
Ben Dooks
0c17e4ceed Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-rmk 2008-07-15 20:19:14 +01:00
Arnaud Patard (Rtp
19c1d6a34a [ARM] S3C24XX: Fix SERIAL_SAMSUNG entry
The SERIAL_SAMSUNG needs SERIAL_CORE but doesn't select it, leading to a
build failure. Adding a 'select SERIAL_CORE' cure the trouble.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-07-15 17:20:59 +01:00
Benjamin Herrenschmidt
43d2548bb2 Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of:

	arch/powerpc/Kconfig
2008-07-15 15:44:51 +10:00
Linus Torvalds
85082fd7cb Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (241 commits)
  [ARM] 5171/1: ep93xx: fix compilation of modules using clocks
  [ARM] 5133/2: at91sam9g20 defconfig file
  [ARM] 5130/4: Support for the at91sam9g20
  [ARM] 5160/1: IOP3XX: gpio/gpiolib support
  [ARM] at91: Fix NAND FLASH timings for at91sam9x evaluation kits.
  [ARM] 5084/1: zylonite: Register AC97 device
  [ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model
  [ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers
  [ARM] 5147/1: pxaficp_ir: drop pxa_gpio_mode calls, as pin setting
  [ARM] 5145/1: PXA2xx: provide api to control IrDA pins state
  [ARM] 5144/1: pxaficp_ir: cleanup includes
  [ARM] pxa: remove pxa_set_cken()
  [ARM] pxa: allow clk aliases
  [ARM] Feroceon: don't disable BPU on boot
  [ARM] Orion: LED support for HP mv2120
  [ARM] Orion: add RD88F5181L-FXO support
  [ARM] Orion: add RD88F5181L-GE support
  [ARM] Orion: add Netgear WNR854T support
  [ARM] s3c2410_defconfig: update for current build
  [ARM] Acer n30: Minor style and indentation fixes.
  ...
2008-07-14 16:06:58 -07:00
Linus Torvalds
6c118e43dc Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: (31 commits)
  avr32: Fix typo of IFSR in a comment in the PIO header file
  avr32: Power Management support ("standby" and "mem" modes)
  avr32: Add system device for the internal interrupt controller (intc)
  avr32: Add simple SRAM allocator
  avr32: Enable SDRAMC clock at startup
  rtc-at32ap700x: Enable wakeup
  macb: Basic suspend/resume support
  atmel_serial: Drain console TX shifter before suspending
  atmel_serial: Fix build on avr32 with CONFIG_PM enabled
  avr32: Use a quicklist for PTE allocation as well
  avr32: Use a quicklist for PGD allocation
  avr32: Cover the kernel page tables in the user PGDs
  avr32: Store virtual addresses in the PGD
  avr32: Remove useless zeroing of swapper_pg_dir at startup
  avr32: Clean up and optimize the TLB operations
  avr32: Rename at32ap.c -> pdc.c
  avr32: Move setup_platform() into chip-specific file
  avr32: Kill special exception handler sections
  avr32: Kill unneeded #include <asm/pgalloc.h> from asm/mmu_context.h
  avr32: Clean up time.c #includes
  ...
2008-07-14 13:37:29 -07:00
Laurent Pinchart
dc32081530 cpm_uart: Support uart_wait_until_sent()
Set port->fifosize to the software FIFO size, and update the port timeout
when the baud rate is modified. SCC ports have an optional 32 byte hardware
FIFO which is currently not taken into account, as there is no documented way
to check when the FIFO becomes empty.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-14 07:55:38 -05:00
Rune Torgersen
491a7a436c cpm_uart: Fix cpm uart corruption with PREEMPT_RT
Fix CPM serial port corruption when running with CONFIG_PREEMPT_RT.
Userland usage of console, and kernel printf's were stepping on each others toes.
Also only take lock if not in an oops.

Signed-off-by: Rune Torgersen <runet@innovsys.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-14 07:55:29 -05:00
Benjamin Herrenschmidt
11c2d8174e Merge commit 'origin/HEAD' into test-merge
Manual fixup of include/asm-powerpc/pgtable-ppc64.h
2008-07-14 14:29:49 +10:00
Eric W. Biederman
05d81d2222 serial8250: sanity check nr_uarts on all paths.
I had 8250.nr_uarts=16 in the boot line of a test kernel and I had a weird
mysterious crash in sysfs.  After taking an in-depth look I realized that
CONFIG_SERIAL_8250_NR_UARTS was set to 4 and I was walking off the end of
the serial8250_ports array.

Ouch!!!

Don't let this happen to someone else.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Alan Cox <alan@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12 14:33:41 -07:00
Russell King
f0006314d3 Merge branch 'imx' into devel
Conflicts:

	arch/arm/mm/Kconfig
2008-07-10 16:41:50 +01:00
Sascha Hauer
604cbadce2 MX2 add support for mx2 in i.MX serial driver
add support for mx2 in i.MX serial driver

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 10:02:58 +02:00
Sascha Hauer
e3d13ff4b9 mxc: add MX3 support for i.MX internal UART driver
This patch adds MX3 support for the i.MX internal uart driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 10:02:48 +02:00
Sascha Hauer
38a41fdf94 IMX: introduce clock API
This patch introduces the clock API for i.MX and converts all
in-Kernel drivers to use it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 10:02:46 +02:00
Sascha Hauer
dbff4e9ea2 IMX UART: remove statically initialized tables
This patch removes the statically initialized tables from the i.MX serial
driver and makes the driver fully dependent on the information provided by
the platform_device.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 10:02:45 +02:00
Sascha Hauer
2582d8c165 IMX UART: Add board specific init/exit functions
Add platform specific init functions. Also rename the struct
platform_device dev into pdev.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 10:02:45 +02:00
Sascha Hauer
036bb15ec9 IMX UART: do not assume 16MHz reference frequency
We assumed a 16MHz reference frequency for the UART. While this
is true for i.MX1 most of the time it is not true for MX27/MX31.
Also, add handling for the ONEMS register which is present on
newer versions of the chip and pass a sane minimum baudrate to
uart_get_baud_rate().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 10:02:44 +02:00
Guennadi Liakhovetski
7ca796f492 serial: fix serial_match_port() for dynamic major tty-device numbers
As reported by Vipul Gandhi, the current serial_match_port() doesn't work
for tty-devices using dynamic major number allocation.  Fix it.

It oopses if you suspend a serial port with _dynamic_ major number.  ATM,
I think, there's only the drivers/serial/jsm/jsm_driver.c driver, that
does it in-tree.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Vipul Gandhi <vcgandhi1@aol.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-04 10:40:04 -07:00
Ben Dooks
b497549a03 [ARM] S3C24XX: Split serial driver into core and per-cpu drivers
The S3C2410 serial driver in drivers/serial/s3c2410.c has been
growing bigger with the addition of more variants of this hardware
with the growing Samsung SoCs range. As such, it would be
easier to split this code up into a core and per-cpu drivers to
make driver addition easier, and the core smaller.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-07-03 16:51:31 +01:00
Ben Dooks
ea304e394f [ARM] S3C2410: Add sysfs attribute for serial driver clock source
Add attribute to show the current clock source for the serial
driver and remove old and annoying debug output.

Note, this only currently shows the current source with a
"* " prefix to indicate that it is the current source. Future
code will list all the clock sources, with the non-selected
one with "  " prefix.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
PATCH FOLLOWS
KernelVersion: 2.6.26-rc3
2008-07-03 16:51:18 +01:00
Ben Dooks
8fe059df33 [ARM] 5054/1: S3C2410: Add GPLv2 license to the s3c2410 serial driver
The original driver had an MODULE_LICENSE statement for GPL,
but no explict license in the header of the file. To make
this more explicit, and since I am the original authour,
we will add a GPLv2 header.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03 16:36:04 +01:00
Ben Dooks
05a7896639 [ARM] 5050/1: S3C2410: Cleanup header on S3C2410 serial driver
Remove the changelog which should really be found
in the version control system.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03 16:36:03 +01:00
Haavard Skinnemoen
e1c609efbc atmel_serial: Drain console TX shifter before suspending
Funny things may happen if we stop the USART clock before the shifter is
empty. Prevent this from happening by waiting until the shifter is
completely drained before allowing suspend to continue.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
2008-07-02 11:05:00 +02:00
Haavard Skinnemoen
f826caa449 atmel_serial: Fix build on avr32 with CONFIG_PM enabled
AVR32 doesn't have at91_suspend_entering_slow_clock(). Just assume the
clock will keep running for now.

David has a better solution for this, but this works for now. Leaving
the USART clock running won't prevent the PM code from entering deep
power-down modes anyway.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Andrew Victor <linux@maxim.org.za>
2008-07-02 11:05:00 +02:00
Paul Mackerras
e9a4b6a3f6 Merge branch 'linux-2.6' 2008-06-30 10:16:50 +10:00
Kumar Gala
0b2a2e5b77 cpm_uart: Remove !CONFIG_PPC_CPM_NEW_BINDING code
Now that arch/ppc is gone we always define CONFIG_PPC_CPM_NEW_BINDING so
we can remove all the code associated with !CONFIG_PPC_CPM_NEW_BINDING.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26 01:49:04 -05:00
Kumar Gala
0d8440657e cpm_uart: fix whitespace issues
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26 01:49:04 -05:00
Sonic Zhang
f30ac0ce34 Blackfin Serial Driver: Use timer to poll CTS PIN instead of workqueue.
This allows other threads to run when the serial driver polls the CTS
PIN in a loop.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-06-19 17:46:39 +08:00
Stephen Rothwell
c401b04456 of_serial: Use linux/of_platform.h instead of asm
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09 13:46:37 +10:00
Graf Yang
3b8458a979 Blackfin serial driver: fix up tty core set_ldisc API change breakage bug
This is the patch that follows Linus's modification about set_ldisc.
Graf has built and tested it on BF537 using Linus's git Tree.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-06-07 15:36:33 +08:00
Haavard Skinnemoen
9c81c5c95c atmel_serial: filter out FP during baud rate detection
I made a change to u-boot that used the FP (Fractional Part) field of BRGR
to achieve more accurate baud rate generation.  Unfortunately, the
atmel_serial driver looks at the whole BRGR register when trying to detect
the baud rate that the port is currently running at, so setting FP to a
nonzero value breaks the baud rate detection.

I'll sit on the u-boot patch for a while longer, but this is clearly a
bug in the atmel_serial driver which should be fixed.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:12 -07:00
Anton Vorontsov
4feead71fa serial: fix driver_name conflicts
Some drivers are using too generic "serial" name for driver_name, this
might cause issues, like this:

Freescale QUICC Engine UART device driver
proc_dir_entry 'serial' already registered
Call Trace:
[cf82de50] [c0007f7c] show_stack+0x4c/0x1ac (unreliable)
[cf82de90] [c00b03fc] proc_register+0xfc/0x1ac
[cf82dec0] [c00b05c8] create_proc_entry+0x60/0xac
[cf82dee0] [c00b23dc] proc_tty_register_driver+0x60/0x98
[cf82def0] [c016dbd8] tty_register_driver+0x1b4/0x228
[cf82df20] [c0184d70] uart_register_driver+0x144/0x194
[cf82df40] [c030a378] ucc_uart_init+0x2c/0x94
[cf82df50] [c02f21a0] kernel_init+0x98/0x27c
[cf82dff0] [c000fa74] kernel_thread+0x44/0x60

^^ The board is using ucc_uart.c and 8250.c, both registered as
   "serial".

This patch fixes two drivers that are using "serial" for driver_name and
not "ttyS" for dev_name.  Drivers that are using "ttyS" for dev_name, will
conflict anyway, so we don't bother with these.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Alan Cox <alan@redhat.com>
Acked-By: Timur Tabi <timur@freescale.com>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:09 -07:00
Linus Torvalds
edeb280e49 Fix uart_set_ldisc() function type
Commit 64e9159f5d ("serial_core:
uart_set_ldisc infrastructure") introduced the ability for low-level
serial drivers to be informed when the tty ldisc changes.

However, the actual tty-layer function that does this callback for
serial devices was declared with the wrong type, having a spurious and
unused 'ldisc' argument.

This fixed the resulting compiler warning by just removing it.

Acked-by: Blithering Idiot <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-04 10:35:03 -07:00
Alan Cox
64e9159f5d serial_core: uart_set_ldisc infrastructure
The tty layer provides a callback that is used when the line discipline
is changed. Some hardware uses this to configure hardware specific
features such as IrDA mode on serial ports. Unfortunately the serial
layer does not provide this feature or pass it down to drivers.

Blackfin used to hack around this by rewriting the tty ops, but those are
now properly shared and const so the hack fails. Instead provide the
proper operations.

This change plus a follow up from the Blackfin guys is needed to avoid
blackfin losing features in this release.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-03 08:20:17 -07:00
Sonic Zhang
1feaa51d84 Blackfin Serial Driver: Clean up BF54x macro in blackfin UART driver.
Hide difference in head file.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-06-03 12:19:45 +08:00
Bryan Wu
a4ed1e41a7 8250 Serial Driver: revert extra IRQ flag definition patch
As Russell pointed out, original patch will break some serial configurations
because of the dependency of the <asm/serial.h> header file.

Revert it first and try to find out other solution later

Cc: Javier Herrero <jherrero@hvsistemas.es>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-31 16:10:04 +08:00
Arjan van de Ven
03a74dcc7e serial: fix enable_irq_wake/disable_irq_wake imbalance in serial_core.c
enable_irq_wake() and disable_irq_wake() need to be balanced.  However,
serial_core.c calls these for different conditions during the suspend and
resume functions...

This is causing a regular WARN_ON() as found at
http://www.kerneloops.org/search.php?search=set_irq_wake

This patch makes the conditions for triggering the _wake enable/disable
sequence identical.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-24 09:56:11 -07:00
Ignacio García Pérez
4b6f6ce97e serial: support for InstaShield IS-400 four port RS-232 PCI card
Add support for the InstaShield IS-400 four port RS-232 PCI card.

Signed-off-by: Ignacio García Pérez <iggarpe@t2i.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-24 09:56:09 -07:00
David S. Miller
3651751fff sunhv: Fix locking in non-paged I/O case.
This causes the lock to be taken twice, thus resulting in
a deadlock.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-20 23:42:09 -07:00
Linus Torvalds
754cdd4aba Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  Blackfin SPORTS UART Driver: converting BFIN->BLACKFIN
  Blackfin serial driver: add extra IRQ flag for 8250 serial driver
  8250 Serial Driver: Added support for 8250-class UARTs in HV Sistemas H8606 board
  Blackfin arch: Fix bug - USB fails to build for BF524/BF526
  Blackfin arch: update boards defconfig files
  Blackfin arch: IO Port functions to read/write unalligned memory
  Blackfin arch: enable a choice to provide 4M DMA memory
  Blackfin arch: cleanup the icplb/dcplb multiple hit checks
  Blackfin arch: Add workaround to read edge triggered GPIOs
  Blackfin arch: Sync channel defines with struct dma_register dma_io_base_addr.
  Blackfin arch: Check for Anomaly 05000182
  [Blackfin] arch: rename bf5xx-flash to bfin-async-flash
  [Blackfin] arch: Blackfin checksum annotations
2008-05-19 16:33:29 -07:00
Mike Frysinger
460ed2ea04 Blackfin SPORTS UART Driver: converting BFIN->BLACKFIN
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 18:22:26 +08:00
Javier Herrero
b4aa54d951 8250 Serial Driver: Added support for 8250-class UARTs in HV Sistemas H8606 board
Added support for 8250-class UARTs in HV Sistemas H8606 board,
modification in 8250.c driver for correct compilation with Blackfin

Besides, I think that there is more people using 8250-class UARTs
with a different hardware than the H8606 board. This code can be shared
by them.

Signed-off-by: Javier Herrero <jherrero@hvsistemas.es>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-17 18:21:42 +08:00
Harvey Harrison
bfd3c7a728 sh: use the common ascii hex helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-16 15:09:08 +09:00
Sebastian Siewior
f7c5a770e6 m68knommu: add info about removing mcfserial
Schedule a removal for this driver. Alternative driver is available for
a while now.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-14 19:11:12 -07:00
Alan Cox
454aa3899f cris: Fix compile failure due to typo in serial driver
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-12 07:27:38 -07:00
Linus Torvalds
3ed43c745d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (21 commits)
  Blackfin Serial Driver: abstract away DLAB differences into header
  Blackfin Serial Driver: macro away the IER differences between processors
  [Blackfin] arch: remove useless IRQ_SW_INT defines
  [Blackfin] arch: protect linux/usb/musb.h include until the driver gets mainlined
  [Blackfin] arch: protect linux/usb/isp1362.h include until the driver gets mainlined
  [Blackfin] arch: add EBIU supporting for BF54x EZKIT SMSC LAN911x/LAN921x families embedded ethernet driver
  [Blackfin] arch: Set spi flash partition on bf527 as like bf548.
  [Blackfin] arch: fix bug - Remove module will not free L1 memory used
  [Blackfin] arch: fix wrong header name in comment
  [Blackfin] arch: Fix BUG - spi flash on bf527 ezkit would fail at mount
  [Blackfin] arch: add twi_lcd and twi_keypad i2c board info to bf527-ezkit
  [Blackfin] arch: Add physmap partition for BF527-EZkit
  [Blackfin] arch: fix gdb testing regression
  [Blackfin] arch: disable single stepping when delivering a signal
  [Blackfin] arch: Delete unused (copied from m68k) entries in asm-offsets.c.
  [Blackfin] arch: In the double fault handler, set up the PT_RETI slot
  [Blackfin] arch: Support for CPU_FREQ and NOHZ
  [Blackfin] arch: Functional power management support: Add CPU and platform voltage scaling support
  [Blackfin] arch: fix bug -  breaking the atomic sections code.
  [Blackfin] arch: Equalize include files: Add VR_CTL masks
  ...
2008-05-09 10:34:00 -07:00
Linus Torvalds
a9545ee3c8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (37 commits)
  SH: catch negative denormal_subf1() retval in denormal_add()
  sh: Fix DMAC base address for SH7709S
  sh: update smc91x platform data for se7206.
  sh: Stub in cpu_to_node() and friends for NUMA build.
  sh: intc register modify fix
  sh: no high level trigger on some sh3 cpus
  sh: clean up sh7710 and sh7720 intc tables
  sh: add interrupt ack code to sh3
  sh: unify external irq pin code for sh3
  sh-sci: avoid writing to nonexistent registers
  sh-sci: sh7722 lacks scsptr registers
  sh-sci: improve sh7722 support
  sh: reset hardware from early printk
  sh: drain and wait for early printk
  sh: use sci_out() for early printk
  sh: add memory resources to /proc/iomem
  sh: add kernel bss resource
  sh: fix sh7705 interrupt vector typo
  sh: update smc91x platform data for se7722
  sh: update smc91x platform data for MigoR
  ...
2008-05-09 08:07:58 -07:00
Tetsuo Handa
55d7b68996 serial: access after NULL check in uart_flush_buffer()
I noticed that

  static void uart_flush_buffer(struct tty_struct *tty)
  {
  	struct uart_state *state = tty->driver_data;
  	struct uart_port *port = state->port;
  	unsigned long flags;

  	/*
  	 * This means you called this function _after_ the port was
  	 * closed.  No cookie for you.
  	 */
  	if (!state || !state->info) {
  		WARN_ON(1);
  		return;
  	}

is too late for checking state != NULL.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-08 10:46:55 -07:00
Magnus Damm
3d2c2f3ef7 sh-sci: avoid writing to nonexistent registers
Only write to hardware in SCI_OUT() if the register size is valid.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-08 19:51:59 +09:00
Magnus Damm
9b4e466f93 sh-sci: sh7722 lacks scsptr registers
The sh7722 serial ports all lack SCSPTR registers, so mark them as
nonexistent in the register table.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-08 19:51:58 +09:00
Magnus Damm
346b746300 sh-sci: improve sh7722 support
Improve sh7722 support for SCIF1 and SCIF2 and separate code
from sh7366 implementation.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-08 19:51:57 +09:00
Paul Mundt
85f094ecb1 sh: Enable use of the clk fwk on SH-5.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-08 19:51:42 +09:00
Mike Frysinger
45828b812d Blackfin Serial Driver: abstract away DLAB differences into header
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-07 11:41:26 +08:00
Mike Frysinger
89bf6dc51a Blackfin Serial Driver: macro away the IER differences between processors
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-07 11:41:26 +08:00
Linus Torvalds
bf640be423 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc32: Delete prom_stdin and prom_stdout.
  sparc32: More memory probing consolidation.
  sparc32: Kill totally unused memory information tables.
  sparc64: Fix syscall restart, for real...
  serial: Fix sparc driver name strings.
  sparc64: Stop creating dummy root PCI host controller devices.
2008-05-03 10:05:11 -07:00
Linus Torvalds
c36c804559 Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Bolt in SLB entry for kernel stack on secondary cpus
  [POWERPC] PS3: Update ps3_defconfig
  [POWERPC] PS3: Remove unsupported wakeup sources
  [POWERPC] PS3: Make ps3_virq_setup and ps3_virq_destroy static
  [POWERPC] PS3: Add time include to lpm
  [POWERPC] Fix slb.c compile warnings
  [POWERPC] Xilinx: Fix compile warnings
  [POWERPC] Squash build warning for print of resource_size_t in fsl_soc.c
  [RAPIDIO] fix current kernel-doc notation
  [POWERPC] 86xx: mpc8610_hpcd: add support for PCI Express x8 slot
  Fix a potential issue in mpc52xx uart driver
  [POWERPC] mpc5200: Allow for fixed speed MII configurations
  [POWERPC] 86xx: Fix the wrong serial1 interrupt for 8610 board
2008-05-03 10:01:33 -07:00
David S. Miller
32039f4954 serial: Fix sparc driver name strings.
They were all "serial" so if multiple of these drivers registered,
we'd trigger sysfs directory creation errors:

[    1.695793] proc_dir_entry 'serial' already registered
[    1.695839] Call Trace:
[    1.831891]  [00000000004f2534] create_proc_entry+0x7c/0x98
[    1.833608]  [00000000004f3a58] proc_tty_register_driver+0x40/0x70
[    1.833663]  [0000000000594700] tty_register_driver+0x1fc/0x208
[    1.835371]  [00000000005aade4] uart_register_driver+0x134/0x16c
[    1.841762]  [00000000005ac274] sunserial_register_minors+0x34/0x68
[    1.841818]  [00000000007db2a4] sunsu_init+0xf8/0x150
[    1.867697]  [00000000007c62a4] kernel_init+0x190/0x330
[    1.939147]  [0000000000426cf8] kernel_thread+0x38/0x48
[    1.939198]  [00000000006a0d90] rest_init+0x18/0x5c

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-02 05:22:51 -07:00
Andrew Liu
fbe543b412 Fix a potential issue in mpc52xx uart driver
mpc52xx_uart_int and __uart_put_char both try to acquire the
port->lock. Therefore the function sequence of:

mpc52xx_uart_int--> ...-->flush_to_ldisc-->...-->__uart_put_char

can potentially trigger a deadlock. To avoid this deadlock a fix
similar to that found in the 8250.c serial driver is applied. The
deadlock is avoided by releasing the lock before pushing a buffer
and reacquiring it when completed.

Signed-off-by: Andrew Liu <shengping.liu@windriver.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-05-01 11:59:12 -06:00
Scott Kilau
99da9047e6 jsm: add new supported board to jsm serial driver
Add new PCI Express Neo/JSM board to the supported list of drivers in
the JSM driver.

Signed-off-by: Scott Kilau <scottk@digi.com>
Acked-by: Ananda V <avenkat@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Alan Cox
6f441fe998 8250: switch 8250 drivers to use _nocache ioremaps
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:00 -07:00
Linus Torvalds
ec31b21241 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix crashkernel= handling when no crashkernel= specified
  [POWERPC] Make emergency stack safe for current_thread_info() use
  [POWERPC] spufs: add .gitignore for spu_save_dump.h & spu_restore_dump.h
  [POWERPC] spufs: trace spu_acquire_saved events
  [POWERPC] spufs: fix marker name for find_victim
  [POWERPC] spufs: add marker for destroy_spu_context
  [POWERPC] spufs: add sputrace marker parameter names
  [POWERPC] spufs: add context switch notification log
  [POWERPC] mpc5200: defconfigs for CM5200, Lite5200B, Motion-PRO and TQM5200
  [POWERPC] mpc5200: Switch mpc5200 dts files to dts-v1 format
  [POWERPC] mpc5200: Fix FEC error handling on FIFO errors
  [POWERPC] mpc5200: add Phytec pcm030 board support
  [POWERPC] mpc5200: add gpiolib support for mpc5200
  [POWERPC] mpc5200: add interrupt type function
  [POWERPC] mpc5200: Fix unterminated of_device_id table
2008-04-30 08:37:40 -07:00
Harvey Harrison
71cc2c2152 serial: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:54 -07:00
Alan Cox
f34d7a5b70 tty: The big operations rework
- Operations are now a shared const function block as with most other Linux
  objects

- Introduce wrappers for some optional functions to get consistent behaviour

- Wrap put_char which used to be patched by the tty layer

- Document which functions are needed/optional

- Make put_char report success/fail

- Cache the driver->ops pointer in the tty as tty->ops

- Remove various surplus lock calls we no longer need

- Remove proc_write method as noted by Alexey Dobriyan

- Introduce some missing sanity checks where certain driver/ldisc
  combinations would oops as they didn't check needed methods were present

[akpm@linux-foundation.org: fix fs/compat_ioctl.c build]
[akpm@linux-foundation.org: fix isicom]
[akpm@linux-foundation.org: fix arch/ia64/hp/sim/simserial.c build]
[akpm@linux-foundation.org: fix kgdb]
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:47 -07:00
Alan Cox
23d22cea85 serial: switch the serial core to int put_char methods
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:47 -07:00
Alan Cox
09a6ffa84c serial m68k: put_char returns
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:45 -07:00
Alan Cox
978e595f88 tty/serial: lay the foundations for the next set of reworks
- Stop drivers calling their own flush method indirectly, it obfuscates code
  and it will change soon anyway

- A few more lock_kernel paths temporarily needed in some driver internal
  waiting code

- Remove private put_char method that does a write call for one char - we
  have that anyway

- Most but not yet all of the termios copy under lock fixing (some has other
  dependencies to follow)

- Note a few locking bugs in drivers found in the process

- Kill remaining [ab]users of TIOCG/SSOFTCAR in the driver, these must go to
  fix the termios locking

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:45 -07:00
Alan Cox
e523844260 serial_core: Prepare for BKL push down
Instead of checking for the BKL in these methods, take it ourselves.  That
avoids propogating it into the serial drivers and we can then fix them later
on.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:40 -07:00
Alan Cox
c0754c99a6 68360serial: Note that there isn't any info->mcr locking
Noticed while auditing the code for the BKL elimination project

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:40 -07:00
Bryan Wu
2f3517418d Blackfin serial driver: this driver enable SPORTs on Blackfin emulate UART
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:30 -07:00
Linus Torvalds
d973664992 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (26 commits)
  [ARM] pxa: fix 1c104e0e4f
  [ARM] serial: s3c2410: platform_get_irq() may return signed unnoticed
  [ARM] am79c961a: platform_get_irq() may return signed unnoticed
  [ARM] Feroceon: Feroceon-specific WA-cache compatible {copy,clear}_user_page()
  [ARM] Feroceon: fix function alignment in proc-feroceon.S
  [ARM] Orion: catch a couple more alternative spellings of PCIe
  [ARM] Orion: fix orion-ehci platform resource end addresses
  [ARM] Orion: fix ->map_irq() PCIe bus number check
  [ARM] Orion: fix ioremap() optimization
  [ARM] feroceon: remove CONFIG_CPU_CACHE_ROUND_ROBIN check
  [ARM] feroceon: remove CONFIG_CPU_DCACHE_WRITETHROUGH check
  kprobes/arm: fix decoding of arithmetic immediate instructions
  kprobes/arm: fix cache flush address for instruction stub
  [ARM] 5022/1: Race in ARM MMCI PL18x driver, V2
  [ARM] 5021/1: at91: buildfix for sam9263 + PM
  [ARM] 5018/1: RealView: Fix the ARM11MPCore Oprofile compilation
  [ARM] 5016/1: AT91: typo in mci configuration for at91cap at91sam9263
  [ARM] 5017/1: pxa3xx: Report unsupported wakeup sources in pxa3xx_set_wake()
  [ARM] 5020/1: magician: remove __devinit marker from pasic3_leds_info
  [ARM] 5014/1: Cleanup reset state before entering suspend or resetting.
  ...
2008-04-29 15:18:06 -07:00
Grant Likely
bc775eac63 [POWERPC] mpc5200: Fix unterminated of_device_id table
If CONFIG_PPC_MPC5121 is not set, then the of_device_id table for the
mpc5200 serial driver will not get terminated with a NULL entry.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-04-29 07:16:18 -06:00
Roel Kluin
681587c586 [ARM] serial: s3c2410: platform_get_irq() may return signed unnoticed
port->irq is unsigned, platform_get_irq() may return signed unnoticed

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-28 21:24:45 +01:00
Linus Torvalds
e31a94ed37 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (45 commits)
  [MIPS] Pb1200/DBAu1200: move platform code to its proper place
  [MIPS] Fix handling of trap and breakpoint instructions
  [MIPS] Pb1200: do register SMC 91C111
  [MIPS] DBAu1200: fix bad SMC 91C111 resource size
  [NET] Kconfig: Rename MIKROTIK_RB500 -> MIKROTIK_RB532
  [MIPS] IP27: Fix build bug due to missing include
  [MIPS] Fix some sparse warnings on traps.c and irq-msc01.c
  [MIPS] cevt-gt641xx: Kill unnecessary include
  [MIPS] DS1287: Add clockevent driver
  [MIPS] add DECstation I/O ASIC clocksource
  [MIPS] rbtx4938: minor cleanup
  [MIPS] Alchemy: kill unused PCI_IRQ_TABLE_LOOKUP macro
  [MIPS] rbtx4938: misc cleanups
  [MIPS] jmr3927: use generic txx9 gpio
  [MIPS] rbhma4500: use generic txx9 gpio
  [MIPS] generic txx9 gpio support
  [MIPS] make fallback gpio.h gpiolib-friendly
  [MIPS] unexport null_perf_irq() and make it static
  [MIPS] unexport rtc_mips_set_time()
  [MIPS] unexport copy_from_user_page()
  ...
2008-04-28 10:51:43 -07:00
Linus Torvalds
e945e849e1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: video drivers: add facility level
  sparc: tcx.c make tcx_init and tcx_exit static
  sparc: ffb.c make ffb_init and ffb_exit static
  sparc: cg14.c make cg14_init and cg15_exit static
  sparc: bw2.c fix bw2_exit
  sparc64: Fix accidental syscall restart on child return from clone/fork/vfork.
  sparc64: Clean up handling of pt_regs trap type encoding.
  sparc: Remove old style signal frame support.
  sparc64: Kill bogus RT_ALIGNEDSZ macro from signal.c
  sparc: sunzilog.c remove unused argument
  sparc: fix drivers/video/tcx.c warning
  sparc64: Kill unused local ISA bus layer.
  input: Rewrite sparcspkr device probing.
  sparc64: Do not ignore 'pmu' device ranges.
  sparc64: Kill ISA_FLOPPY_WORKS code.
  sparc64: Kill CONFIG_SPARC32_COMPAT
  sparc64: Cleanups and corrections for arch/sparc64/Kconfig
  sparc64: Fix wedged irq regression.
2008-04-28 09:45:57 -07:00
Sergei Shtylyov
6e766458f7 [MIPS] Alchemy: move UART platform code to its proper place
Move the code registering the Alchemy UART platform devices from
drivers/serial/ to its proper place, into the Alchemy platform code.  Fix
the related Kconfig entry, while at it...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-28 17:14:28 +01:00
Michael Trimarchi
6e10efefaa atmel_serial: remove duplicated macro definition
After commit 39d4c922b5 (atmel_serial: fix
uart/console concurrent access) the UART_GET_TCR macro got redefined. This
patch removes the duplicated definition.

Signed-off-by: michael trimarchi <trimarchimichael@evidence.eu.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:30 -07:00
Julia Lawall
d1ec61e668 serial: use time_before, time_before_eq, etc
The functions time_before, time_before_eq, time_after, and time_after_eq
are more robust for comparing jiffies against other values.

A simplified version of the semantic patch making this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@ change_compare_np @
expression E;
@@

(
- jiffies <= E
+ time_before_eq(jiffies,E)
|
- jiffies >= E
+ time_after_eq(jiffies,E)
|
- jiffies < E
+ time_before(jiffies,E)
|
- jiffies > E
+ time_after(jiffies,E)
)

@ include depends on change_compare_np @
@@

#include <linux/jiffies.h>

@ no_include depends on !include && change_compare_np @
@@

  #include <linux/...>
+ #include <linux/jiffies.h>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:30 -07:00
Alex Williamson
01c194d927 serial 8250: tighten test for using backup timer
Thomas Koeller had reported an issue where a device that had been making use
of the UART_BUG_TXEN code in the 8250 driver was mistakenly being caught by
the backup timer test, causing the device to work improperly.

To fix this, tighten the test requirements to enable the backup timer
workaround.

The backup timer is really meant to catch UARTs that don't re-assert the THRE
interrupt.  The expectation is that they do initially assert THRE.  This patch
clarifies the test.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Cc: Thomas Koeller <thomas@koeller.dyndns.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:30 -07:00
Yoichi Yuasa
baac58955d serial: add vr41xx_siu_early_setup() for serial console
Add vr41xx_siu_early_setup() for serial console.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:30 -07:00
Alan Cox
eb424fd21c uart_get_baud_rate: stop mangling termios
Russell King noticed this one: We have to avoid replacing B0 when we pick a
baud rate for a "hung up" port.  Ugly but the proper fix is in the tty layer
and means changing the tty<->serial interfaces so we will defer that for now.

[akpm@linux-foundation.org: fix uninitialised var]
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:30 -07:00
Alan Cox
e991a2bd4f Fix tty speed handling on 8250
We try and write the correct speed back but the serial midlayer already
mangles the speed on us and that means if we request B0 we report back B9600
when we should not.  For now we'll hack around this in the drivers and serial
code, pending a better long term solution.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:29 -07:00
Sam Ravnborg
7a63ce5a1f serial: silence section mismatch warnings in 8250_pci
Fix following warnings:
WARNING: drivers/serial/built-in.o(.data+0x5b8): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_ite887x_exit()
WARNING: drivers/serial/built-in.o(.data+0x5e0): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit()
WARNING: drivers/serial/built-in.o(.data+0x608): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit()
WARNING: drivers/serial/built-in.o(.data+0x658): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit()
WARNING: drivers/serial/built-in.o(.data+0x680): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit()
WARNING: drivers/serial/built-in.o(.data+0x6a8): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit()
WARNING: drivers/serial/built-in.o(.data+0x6d0): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:sbs_exit()
WARNING: drivers/serial/built-in.o(.data+0x6f8): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:sbs_exit()
WARNING: drivers/serial/built-in.o(.data+0x720): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:sbs_exit()
WARNING: drivers/serial/built-in.o(.data+0x748): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:sbs_exit()

pci_serial_quirks contains a number of function pointers where the referenced
function is annotated __devexit.  This is OK so we annotate pci_serial_quirks
with __refdata to ignore the __devexit references

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:29 -07:00
Alan Cox
032c17e8af crisv10: prepare for BKL push down
Just the modem bits this time

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:28 -07:00
Roel Kluin
1ecf0d0cd2 dz: test after postfix decrement fails in dz_console_putchar()
When loops reaches 0 the postfix decrement still subtracts, so the subsequent
test fails.

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Johannes Weiner <hannes@saeurebad.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:16 -07:00
Robert Reif
3ade11601f sparc: sunzilog.c remove unused argument
Remove unused argument in function call.

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-26 23:10:19 -07:00
Linus Torvalds
b9fa38f75e Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (49 commits)
  [POWERPC] Add zImage.iseries to arch/powerpc/boot/.gitignore
  [POWERPC] bootwrapper: fix build error on virtex405-head.S
  [POWERPC] 4xx: Fix 460GT support to not enable FPU
  [POWERPC] 4xx: Add NOR FLASH entries to Canyonlands and Glacier dts
  [POWERPC] Xilinx: of_serial support for Xilinx uart 16550.
  [POWERPC] Xilinx: boot support for Xilinx uart 16550.
  [POWERPC] celleb: Add support for PCI Express
  [POWERPC] celleb: Move miscellaneous files for Beat
  [POWERPC] celleb: Move a file for SPU on Beat
  [POWERPC] celleb: Move files for Beat mmu and iommu
  [POWERPC] celleb: Move files for Beat hvcall interfaces
  [POWERPC] celleb: Move the SCC related code for celleb
  [POWERPC] celleb: Move the files for celleb base support
  [POWERPC] celleb: Consolidate io-workarounds code
  [POWERPC] cell: Generalize io-workarounds code
  [POWERPC] Add CONFIG_PPC_PSERIES_DEBUG to enable debugging for platforms/pseries
  [POWERPC] Convert from DBG() to pr_debug() in platforms/pseries/
  [POWERPC] Register udbg console early on pseries LPAR
  [POWERPC] Mark udbg console as CON_ANYTIME, ie. callable early in boot
  [POWERPC] Set udbg_console index to 0
  ...
2008-04-25 12:52:16 -07:00
John Linn
b912b5e2cf [POWERPC] Xilinx: of_serial support for Xilinx uart 16550.
The Xilinx 16550 uart core is not a standard 16550 because it uses
word-based addressing rather than byte-based addressing. With
additional properties it is compatible with the open firmware
'ns16550' compatible binding.

This code updates the of_serial driver to handle the reg-offset
and reg-shift properties to enable this core to be used.

Signed-off-by: John Linn <john.linn@xilinx.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-04-24 13:32:46 -05:00
Linus Torvalds
346ad4b7fe Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (85 commits)
  Blackfin char driver for Blackfin on-chip OTP memory (v3)
  Blackfin Serial Driver: fix bug - use mod_timer to replace only add_timer.
  Blackfin Serial Driver: the uart break anomaly has been given its own number, so switch to it
  Blackfin Serial Driver: use BFIN_UART_NR_PORTS to help SIR driver in uart port.
  Blackfin Serial Driver: Fix bug - kernel hangs when accessing uart 0 on bf537 when booting u-boot and linux on uart 1
  Blackfin Serial Driver: punt unused lsr variable
  Blackfin Serial Driver: Enable IR function when user application (irattach /dev/ttyBFx -s) call TIOCSETD ioctl with line discipline N_IRDA
  [Blackfin] arch: add include/boot .gitignore files
  [Blackfin] arch: Functional power management support: Add support for cpu frequency scaling
  [Blackfin] arch: Functional power management support: Remove broken cpu frequency scaling drivers
  [Blackfin] arch: Equalize include files: Add PLL_DIV Masks
  [Blackfin] arch: Add a warning about the value of CLKIN.
  [Blackfin] arch: take DDR DEVWD into consideration as well for BF548
  [Blackfin] arch: Remove the circular buffering mechanism for exceptions
  [Blackfin] arch: lose unnecessary dependency on CONFIG_BFIN_ICACHE for MPU
  [Blackfin] arch: fix bug - before assign new channel to the map register, need clear the bits first.
  [Blackfin] arch: add Blackfin on-chip SIR IrDA driver support
  [Blackfin] arch: BF54x memsizes are in mbits, not mbytes
  [Blackfin] arch: try to remove condition that causes double fault, by checking current before it gets dereferenced
  [Blackfin] arch: Update anomaly list.
  ...
2008-04-24 09:33:34 -07:00
Sonic Zhang
0a27842337 Blackfin Serial Driver: fix bug - use mod_timer to replace only add_timer.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=4045
If adding timer in both timer handler and rx interrupt, a timer may be
added when it is till in the pending list.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 04:36:47 +08:00
Mike Frysinger
50e2e15afa Blackfin Serial Driver: the uart break anomaly has been given its own number, so switch to it
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 03:03:03 +08:00
Graf Yang
2ade972996 Blackfin Serial Driver: use BFIN_UART_NR_PORTS to help SIR driver in uart port.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 02:55:49 +08:00
Robert Reif
227739bf4c sparc: sunzilog uart order
I have a sparcstation 20 clone with a lot of on board serial ports.
The serial core code assumes that uarts are assigned contiguously
and that may not be the case when there are multiple zs devices
present.  This patch insures that uart chips are placed in front of
keyboard/mouse chips in the port table.

ffd37420: ttyS0 at MMIO 0xf1100000 (irq = 44) is a zs (ESCC)
Console: ttyS0 (SunZilog zs0)
console [ttyS0] enabled
ffd37420: ttyS1 at MMIO 0xf1100004 (irq = 44) is a zs (ESCC)
ffd37500: Keyboard at MMIO 0xf1000000 (irq = 44) is a zs
ffd37500: Mouse at MMIO 0xf1000004 (irq = 44) is a zs
ffd3c5c0: ttyS2 at MMIO 0xf1100008 (irq = 44) is a zs (ESCC)
ffd3c5c0: ttyS3 at MMIO 0xf110000c (irq = 44) is a zs (ESCC)
ffd3c6a0: ttyS4 at MMIO 0xf1100010 (irq = 44) is a zs (ESCC)
ffd3c6a0: ttyS5 at MMIO 0xf1100014 (irq = 44) is a zs (ESCC)
ffd3c780: ttyS6 at MMIO 0xf1100018 (irq = 44) is a zs (ESCC)
ffd3c780: ttyS7 at MMIO 0xf110001c (irq = 44) is a zs (ESCC)

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-24 03:37:51 -07:00
Sonic Zhang
1a3a4c7130 Blackfin Serial Driver: Fix bug - kernel hangs when accessing uart 0 on bf537 when booting u-boot and linux on uart 1
Wait only when this UART is enabled.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3995

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23 09:43:20 +08:00
Mike Frysinger
0c44a86d9e Blackfin Serial Driver: punt unused lsr variable
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24 04:56:02 +08:00
Linus Torvalds
9a64388d83 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits)
  [POWERPC] Fix compile breakage for 64-bit UP configs
  [POWERPC] Define copy_siginfo_from_user32
  [POWERPC] Add compat handler for PTRACE_GETSIGINFO
  [POWERPC] i2c: Fix build breakage introduced by OF helpers
  [POWERPC] Optimize fls64() on 64-bit processors
  [POWERPC] irqtrace support for 64-bit powerpc
  [POWERPC] Stacktrace support for lockdep
  [POWERPC] Move stackframe definitions to common header
  [POWERPC] Fix device-tree locking vs. interrupts
  [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const
  [POWERPC] Remove unused __max_memory variable
  [POWERPC] Simplify xics direct/lpar irq_host setup
  [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ()
  [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade()
  [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c
  [POWERPC] Use asm-generic/bitops/find.h in bitops.h
  [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup
  [POWERPC] 85xx: Fix the size of qe muram for MPC8568E
  [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier.
  [POWERPC] 86xx: mark functions static, other minor cleanups
  ...
2008-04-21 15:50:49 -07:00
Linus Torvalds
e80ab411e5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: (36 commits)
  SCSI: convert struct class_device to struct device
  DRM: remove unused dev_class
  IB: rename "dev" to "srp_dev" in srp_host structure
  IB: convert struct class_device to struct device
  memstick: convert struct class_device to struct device
  driver core: replace remaining __FUNCTION__ occurrences
  sysfs: refill attribute buffer when reading from offset 0
  PM: Remove destroy_suspended_device()
  Firmware: add iSCSI iBFT Support
  PM: Remove legacy PM (fix)
  Kobject: Replace list_for_each() with list_for_each_entry().
  SYSFS: Explicitly include required header file slab.h.
  Driver core: make device_is_registered() work for class devices
  PM: Convert wakeup flag accessors to inline functions
  PM: Make wakeup flags available whenever CONFIG_PM is set
  PM: Fix misuse of wakeup flag accessors in serial core
  Driver core: Call device_pm_add() after bus_add_device() in device_add()
  PM: Handle device registrations during suspend/resume
  block: send disk "change" event for rescan_partitions()
  sysdev: detect multiple driver registrations
  ...

Fixed trivial conflict in include/linux/memory.h due to semaphore header
file change (made irrelevant by the change to mutex).
2008-04-21 15:49:58 -07:00
Linus Torvalds
429f731dea Merge branch 'semaphore' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc
* 'semaphore' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc:
  Deprecate the asm/semaphore.h files in feature-removal-schedule.
  Convert asm/semaphore.h users to linux/semaphore.h
  security: Remove unnecessary inclusions of asm/semaphore.h
  lib: Remove unnecessary inclusions of asm/semaphore.h
  kernel: Remove unnecessary inclusions of asm/semaphore.h
  include: Remove unnecessary inclusions of asm/semaphore.h
  fs: Remove unnecessary inclusions of asm/semaphore.h
  drivers: Remove unnecessary inclusions of asm/semaphore.h
  net: Remove unnecessary inclusions of asm/semaphore.h
  arch: Remove unnecessary inclusions of asm/semaphore.h
2008-04-21 15:41:27 -07:00
Linus Torvalds
85b375a613 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (212 commits)
  [ARM] pxa: Phycore pcm-990-specific code for the PXA270 Quick Capture driver
  [ARM] pxa: V4L2 soc_camera driver for PXA270
  [ARM] pxa: restrict availability of pxa2xx PCMCIA drivers
  [ARM] 5005/1: BAST: Fix kset_name initialiser
  [ARM] 4967/1: Adds functions to set clkout rate for Samsung S3C2410
  [ARM] 4988/1: Add GPIO lib support to the EP93xx
  [ARM] Add initial sparsemem support
  [ARM] pxa: initialise PXA devices before platform init code
  [ARM] 5002/1: tosa: add two more leds
  [ARM] 5004/1: Tosa: make several unreferenced structures static.
  [ARM] 5003/1: Shut up sparse warnings
  [ARM] 4977/2: soc - pxa2xx-ac97 - Add missing clk_enable()
  [ARM] 4976/1: zylonite: Configure GPIO for WM9713 IRQ line
  [ARM] 4974/1: Drop unused leds-tosa.
  [ARM] 4973/1: Tosa: use leds-gpio driver.
  [ARM] 4972/1: Tosa: convert scoop GPIOs usage to generic gpio code
  [ARM] 4971/1: pxaficp_ir: provide startup and shutdown hooks
  [ARM] pxa: lubbock: move mis-placed SPI info
  [ARM] 4970/1: tosa: correct gpio used for wake up.
  [ARM] 4966/1: magician: add MFP pin configuration
  ...
2008-04-21 15:40:55 -07:00
Alan Stern
74081f8667 PM: Fix misuse of wakeup flag accessors in serial core
This patch (as1059) fixes a mistake in the way the serial core
initializes a device's wakeup settings.  It should use the accessor
routine instead of relying on a macro producing an lvalue.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-19 19:10:25 -07:00
Russell King
cf816ecb53 Merge branch 'merge-fixes' into devel 2008-04-19 17:17:34 +01:00
Russell King
adf6d34e46 Merge branch 'omap2-upstream' into devel 2008-04-19 17:17:29 +01:00
Matthew Wilcox
d3135846f6 drivers: Remove unnecessary inclusions of asm/semaphore.h
None of these files use any of the functionality promised by
asm/semaphore.h.  It's possible that they rely on it dragging in some
unrelated header file, but I can't build all these files, so we'll have
fix any build failures as they come up.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2008-04-18 22:16:32 -04:00
Paul Mundt
178dd0cd28 sh: Add support for SH7723 CPU subtype.
This adds basic support for the SH7723 MobileR2 CPU.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-04-18 09:50:07 -07:00
Andrew Morton
4a1b5502d4 kgdb: Kconfig fix
ERROR: "uart_parse_options" [drivers/serial/serial_core.ko] undefined!

Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 20:05:42 +02:00
Jason Wessel
84b5ae1521 kgdb: kgdboc pl011 I/O module
Implement the serial polling hooks for the pl011 uart for use with
kgdboc.

This patch was specifically tested on the ARM Versatile AB reference
platform.

[ mingo@elte.hu: minor cleanups. ]

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 20:05:39 +02:00
Jason Wessel
c191e5ad6b kgdb: fix kgdboc dynamic module configuration
Fix the run time configuration of kgdboc such that it does not default
to 9600 baud if you use the "echo" command to configure the sysfs
module paramater.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 20:05:38 +02:00
Jason Wessel
f2d937f3bf consoles: polling support, kgdboc
polled console handling support, to access a console in an irq-less
way while in debug or irq context.

absolutely zero impact as long as CONFIG_CONSOLE_POLL is disabled.
(which is the default)

[ jan.kiszka@siemens.com: lots of cleanups ]
[ mingo@elte.hu: redesign, splitups, cleanups. ]

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 20:05:37 +02:00
Sascha Hauer
3a8daaa49f [ARM] 4999/1: <IMX UART>: fix membase
The membase field in struct uart_port should be the the physical
address. This patch fixes it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-17 16:22:22 +01:00
Sascha Hauer
3d454446e2 [ARM] 4998/1: <IMX UART>: do not use hardcoded io space size
Do not use hardcoded io space size. Instead use the information provided
by the resource.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-17 16:22:21 +01:00
Sascha Hauer
789d52589a [ARM] 4996/1: <IMX UART>: do not enable tx empty interrupt on startup
We are not interested in tranceiver empty interrupts until we actually
sent a buffer.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-17 16:18:22 +01:00
Sascha Hauer
0d3c3938ff [ARM] 4995/1: <IMX UART>: Do not use URXD_CHARRDY for polling
Do not use the URXD_CHARRDY bit for polling for new characters. This works
on i.MX1, but on MX31 the datasheet states that this bit should not be
used for polling. On MX27 it is even worse, here we get a bus error when
we access the read FIFO when no character is present.
Instead, use USR2_RDR (receive data ready) bit.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-17 16:18:20 +01:00
Sascha Hauer
864eeed051 [ARM] 4994/1: <IMX UART>: Move error handling into execution path
Move the error handling code for erroneous receive characters into
execution path. This makes the code more readable and the compiler
should know how to optimize this, right?

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-17 16:18:19 +01:00
Sascha Hauer
8c9915bf31 [ARM] 4993/1: <IMX UART>: Trivial: Remove unused defines
This patch removes the unused defines NR_PORTS and IMX_ISR_PASS_LIMIT in
the imx serial driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-17 16:18:18 +01:00
Anton Vorontsov
56626f335b [POWERPC] QE: UCC nodes cleanup
- get rid of `model = "UCC"' in the ucc nodes
  It isn't used anywhere, so remove it. If we'll ever need something
  like this, we'll use compatible property instead.
- replace last occurrences of device-id with cell-index.
  Drivers are modified for backward compatibility's sake.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:38 -05:00
Laurent Pinchart
d464df2667 [POWERPC] cpm_uart: Allocate DPRAM memory for SMC ports on CPM2-based platforms.
This patch allocates parameter RAM for SMC serial ports without relying on
previous initialisation by a boot loader or a wrapper layer.

SMC parameter RAM on CPM2-based platforms can be allocated anywhere in the
general-purpose areas of the dual-port RAM. The current code relies on the
boot loader to allocate a section of general-purpose CPM RAM and gets the
section address from the device tree.

This patch modifies the device tree address usage to reference the SMC
parameter RAM base pointer instead of a pre-allocated RAM section and
allocates memory from the CPM dual-port RAM when initialising the SMC port.
CPM1-based platforms are not affected.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:36 -05:00
Kay Sievers
e169c13964 serial: fix platform driver hotplug/coldplug
Since 43cc71eed1, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable serial
platform drivers, to re-enable auto loading.

NOTE that Kconfig for some of these drivers doesn't allow modular builds, and
thus doesn't match the driver source's unload support.  Presumably their
unload code is buggy and/or weakly tested...

[dbrownell@users.sourceforge.net: more drivers, registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-15 19:35:40 -07:00
Paul Mackerras
ac7c5353b1 Merge branch 'linux-2.6' 2008-04-14 21:11:02 +10:00
Stephen Neuendorffer
19a74263f4 [POWERPC] of_serial: Fix possible null dereference.
The of_serial driver queries the current-speed property and attempts
to use it to register the custom_divisor property of the uart_port.
However, if current-speed is not set, then this code will dereference
a bad pointer.  The fix is to only set custom_divisor when a
current-speed property appears in the device tree.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-04-02 20:29:32 -05:00
Marc Pignat
39d4c922b5 atmel_serial: fix uart/console concurrent access
Strange chars appear on the serial port when a printk and a printf
happens at the same time.  This is caused by the pdc sending chars while
atmel_console_write (called from printk) is executing

Concurent access of uart and console to the same port leads to corrupted
data to be transmitted, so disable tx dma (PDC) while writing to the
console.

Signed-off-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-02 15:28:19 -07:00
Michael Trimarchi
ba0657ff05 atmel_serial: avoid stopping pdc during transmission
I found a problem related to losing data during pdc transmission in
atmel_serial: connect ttyS1 with ttyS2 using a loopback cable, send 30
byte of packet from one to the other and waiting for 30 byte.  On the
other side just read and echo the data received.

We always call atmel_tx_dma() from the tasklet regardless of what interrupt
triggered it.

Signed-off-by: michael <trimarchi@gandalf.sssup.it>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-02 15:28:19 -07:00
Al Viro
f0bb3cfde0 8250_pci: duplicate initializer in array ([pbn_b0_8_115200])
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-30 14:20:24 -07:00
Yutaro Ebihara
cae167d3d7 serial: sh-sci: Fix fifo stall on SH7760/SH7780/SH7785 SCIF.
There was an off-by-1 in the SCRFDR calculation that caused writes over
128-bytes to hang in the FIFO. Fix it up.

Signed-off-by: Yutaro Ebihara <ebiharaml@si-linux.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-03-11 13:58:50 +09:00
Josh Boyer
e84290dc79 of_serial: fix section mismatch warnings
Fix the following section mismatches:

WARNING: drivers/built-in.o(.exit.text+0x5a): Section mismatch in reference from the function of_platform_serial_exit() to the variable .devinit.data:of_platform_serial_driver
The function __exit of_platform_serial_exit() references
a variable __devinitdata of_platform_serial_driver.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-10 18:01:17 -07:00
Julia Lawall
022d917d96 drivers/serial/m32r_sio.c: correct use of ! and &
In commit e6bafba5b4 ("wmi: (!x & y)
strikes again"), a bug was fixed that involved converting !x & y to !(x
& y).  The code below shows the same pattern, and thus should perhaps be
fixed in the same way.

This is not tested and clearly changes the semantics, so it is only
something to consider.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@ expression E1,E2; @@
(
  !E1 & !E2
|
- !E1 & E2
+ !(E1 & E2)
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04 16:35:16 -08:00
Bjorn Helgaas
51587cb54f serial: add PNP ID GVC0303 for Archtek 3334BRV ISA modem
Thomas Lehmann <thomas.lehmann@alumni.tu-berlin.de> verified that this
entry works.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04 16:35:09 -08:00
Linus Torvalds
84b9a77400 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (35 commits)
  Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task.
  Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up processes.
  Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before starting tx dma.
  [Blackfin] serial driver: Add flow control support to bf54x
  [Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as well
  [Blackfin] serial driver: ADSP-BF52x arch/mach support
  [Blackfin] serial driver: use simpler comment headers and strip out information that is maintained in the scm's log
  [Blackfin] serial driver: rework break flood anomaly handling to be more robust/realistic about what we can actually work around
  [Blackfin] serial driver: fix bug - cache the bits of the LSR on systems where the LSR is read-to-clear
  [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.
  [Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to console on shell restart
  [Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown.
  [Blackfin] serial driver: Clean up UART DMA code.
  Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle input very quickly
  [Blackfin] arch: kill section mismatch warnings
  [Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist for a part) so that any parts labeled for L1 instead get placed into external memory sections
  [Blackfin] arch: add bfin_clear_PPIx_STATUS() helper funcs like we have for other parts
  [Blackfin] arch: make sure we have proper description/copyright/license lines
  [Blackfin] arch: Fix CONFIG_PM support for BF561
  [Blackfin] arch: Remove DPMC char driver option
  ...
2008-02-29 08:41:13 -08:00
Sonic Zhang
0aef456451 Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3910

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-29 12:08:42 +08:00
Graf Yang
7d01b475ab Blackfin Serial Driver: Enable IR function when user application (irattach /dev/ttyBFx -s) call TIOCSETD ioctl with line discipline N_IRDA
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-29 11:31:08 +08:00
Paul Mundt
96de1a8f02 serial: Move asm-sh/sci.h to linux/serial_sci.h.
This header is needed on other architectures as well (namely h8300),
which currently fails to build without this in place. Rather than
duplicating the port definition completely there, just move this to a
common location instead.

This should get h8300 working again for 2.6.25, in addition to the
changes already pushed by Sato-san in -rc2.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-02-26 14:52:45 +09:00
Sonic Zhang
56f5de8fe7 Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up processes.
Also make rx dma buffer work as a loop.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25 15:19:09 +08:00
Sonic Zhang
0711d85760 Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before starting tx dma.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25 15:16:50 +08:00
Haavard Skinnemoen
0400b697ef atmel_serial: fix interrupt handler return value
We should only return IRQ_HANDLED when we actually found something to
handle. This is important since the USART interrupt handler may be
shared with the timer interrupt on some chips.

Pointed-out-by: michael <trimarchi@gandalf.sssup.it>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:14 -08:00
Paul Mundt
e8ea024bff serial: sh-sci: Fix up SH-5 build.
asm/hardware.h doesn't exist any more, and the definitions sh-sci.h
depended on are provided through asm/cpu/addrspace.h these days.
Kill off the bogus include.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-02-14 14:22:12 +09:00
Magnus Damm
9109a30e5a sh: add support for sh7366 processor
This patch adds sh7366 cpu supports. Just the most basic things like interrupt
controller, clocks and serial port are included at this point.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-02-14 14:22:10 +09:00
Denis Cheng
922f9cfa79 fs/char_dev.c: chrdev_open marked static and removed from fs.h
There is an outdated comment in serial_core.c also fixed.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:42 -08:00
Haavard Skinnemoen
ae16106875 atmel_serial: show tty name in /proc/interrupts
When possible, pass the tty name to request_irq() so that the user can easily
distinguish the different serial ports in /proc/interrupts.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Haavard Skinnemoen
c811ab8c2d atmel_serial: use container_of instead of direct cast
As pointed out by David Brownell, we really ought to be using container_of
when converting from "struct uart_port *" to "struct atmel_uart_port *".

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Haavard Skinnemoen
6433471d33 atmel_serial: fix broken RX buffer allocation
Introduced by atmel_serial-split-the-interrupt-handler.patch.

Thanks to michael <trimarchi@gandalf.sssup.it> for spotting it.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Chip Coldwell
a66706158d atmel_serial: add DMA support
This patch is based on the DMA-patch by Chip Coldwell for the AT91/AT32 serial
USARTS, with some tweaks to make it apply neatly on top of the other patches
in this series.

The RX and TX code has been moved to a tasklet and reworked a bit.  Instead of
depending on the ENDRX and TIMEOUT bits in CSR, we simply grab as much data as
we can from the DMA buffers.  I think this closes a race where the ENDRX bit
is set after we read CSR but before we read RPR, although I haven't confirmed
this.

Similarly, the two TX handlers (ENDTX and TXBUFE) have been combined into one.
 Since the current code only uses a single TX buffer, there's no point in
handling those interrupts separately.

This also fixes a DMA sync bug in the original patch.

[linux@bohmer.net: rebased onto irq-splitup patch]
[hskinnemoen@atmel.com: moved to tasklet, fixed dma bug, misc cleanups]
[hskinnemoen@atmel.com: atmel_serial dma: Misc fixes and cleanups]
Signed-off-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Remy Bohmer
1ecc26bd27 atmel_serial: split the interrupt handler
Split up the interrupt handler of the serial port into a interrupt top-half
and a tasklet.

The goal is to get the interrupt top-half as short as possible to minimize
latencies on interrupts.  But the old code also does some calls in the
interrupt handler that are not allowed on preempt-RT in IRQF_NODELAY context.
This handler is executed in this context because of the interrupt sharing with
the timer interrupt.  The timer interrupt on Preempt-RT runs in IRQF_NODELAY
context.

The tasklet takes care of handling control status changes, pushing incoming
characters to the tty layer, handling break and other errors.  It also handles
pushing TX data into the data register.

Reading the complete receive queue is still done in the top-half because we
never want to miss any incoming character.

[hskinnemoen@atmel.com: misc cleanups and simplifications]
Signed-off-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Haavard Skinnemoen
dfa7f343e5 atmel_serial: fix bugs in probe() error path and remove()
When an error happens in probe(), the clocks should be disabled, but
only if the port isn't already used as a console.

In remove(), the port struct shouldn't be freed because it's defined
statically.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Haavard Skinnemoen
1c0fd82f93 atmel_serial: use existing console options only if BRG is running
If BRGR is zero, the baud rate generator isn't running, so the boot loader
can't have initialized the port.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Haavard Skinnemoen
829dd81122 atmel_serial: use cpu_relax() when busy-waiting
Replace two instances of barrier() with cpu_relax() since that's the right
thing to do when busy-waiting.  This does not actually change anything since
cpu_relax() is defined as barrier() on both ARM and AVR32.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Remy Bohmer
b843aa216c atmel_serial: clean up the code
Clean up the atmel_serial driver to conform the coding rules.  It contains no
functional change.

Signed-off-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:37 -08:00
Alan Cox
a46c999424 serial_core: bring mostly into line with coding style
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Alan Cox
b4c502a709 8250: enable rate reporting via termios
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Alan Cox
6f803cd08f serial8250: coding style
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Alan Cox
5756ee9996 8250_pci: coding style
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Alan Cox
3b0fd36ddc 8250_hub6: codding style
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Alan Cox
0fe1c13713 8250_hp300: coding style
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Alan Cox
8b4a483be5 8250_gsc: coding style
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Alan Cox
ce2e204f0c 8250_early: coding style
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:25 -08:00
Linus Torvalds
3796958130 Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (69 commits)
  [POWERPC] Add SPE registers to core dumps
  [POWERPC] Use regset code for compat PTRACE_*REGS* calls
  [POWERPC] Use generic compat_sys_ptrace
  [POWERPC] Use generic compat_ptrace_request
  [POWERPC] Use generic ptrace peekdata/pokedata
  [POWERPC] Use regset code for PTRACE_*REGS* requests
  [POWERPC] Switch to generic compat_binfmt_elf code
  [POWERPC] Switch to using user_regset-based core dumps
  [POWERPC] Add user_regset compat support
  [POWERPC] Add user_regset_view definitions
  [POWERPC] Use user_regset accessors for GPRs
  [POWERPC] ptrace accessors for special regs MSR and TRAP
  [POWERPC] Use user_regset accessors for SPE regs
  [POWERPC] Use user_regset accessors for altivec regs
  [POWERPC] Use user_regset accessors for FP regs
  [POWERPC] mpc52xx: fix compile error introduce when rebasing patch
  [POWERPC] 4xx: PCIe indirect DCR spinlock fix.
  [POWERPC] Add missing native dcr dcr_ind_lock spinlock
  [POWERPC] 4xx: Fix offset value on Warp board
  [POWERPC] 4xx: Add 440EPx Sequoia ehci dts entry
  ...
2008-02-07 09:02:26 -08:00
Jiri Slaby
1237a2ef31 Char: char/serial, remove SERIAL_TYPE_NORMAL redefines
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:33 -08:00
Maciej W. Rozycki
e6ee512f5a dz.c: Resource management
This is a set of changes to implement proper resource management in the
driver, including iomem space reservation and operating on physical
addresses ioremap()ped appropriately using accessory functions rather than
unportable direct assignments.

Some adjustments to code are made to reflect the architecture of the
interface, which is a centrally controlled multiport (or, as referred to
from DEC documentation, a serial line multiplexer, going up to 8 lines
originally) rather than a bundle of separate ports.

Types are changed, where applicable, to specify the width of hardware
registers explicitly.  The interrupt handler is now managed in the
->startup() and ->shutdown() calls for consistency with other drivers and
also in preparation to handle the handover from the initial firmware-based
console gracefully.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
f5519caad5 dz.c: Use a helper to cast from "struct uart_port *"
Replace all casts from "struct uart_port *" to "struct dz_port *" with a
construct based on container_of().  This makes the conversion work
irrespective of where the former struct is located within the latter.

By popular request I have implemented it as an inline function rather than
a macro this time.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
ff11d07803 dz: clean up and improve the setup of termios settings
A set of changes to the way termios settings are propagated to the serial
port hardware.  The DZ11 only supports a selection of fixed baud settings,
so some requests may not be fulfilled.  Keep the old setting in such a case
and failing that resort to 9600bps.  Also add a missing update of the
transmit timeout.  And remove the explicit encoding of the line selected
from writes to the Line Parameters Register as it has been preencoded by
the ->set_termios() call already.  Finally, remove a duplicate macro for
the Receiver Enable bit.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
54c0f37e9a dz: handle special conditions on reception correctly
Handle the read and ignore status masks correctly.  Handle the BREAK condition
as expected: a framing error with a null character is a BREAK, any other
framing error is a framing error indeed.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
43d46ab1cd dz: fix locking issues
The ->start_tx(), ->stop_tx() and ->stop_rx() backends are called with the
port's lock already taken.  Remove locking from within them and wrap around
calls as necessary.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
6d83c067eb dz: rename the serial console structure
Rename the serial console structure so that `modpost' does not complain about
a reference to an "init" section -- "_console" is magic.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
7287d765d5 dz: update kconfig description
Reformat the Kconfig entries and update descriptions for accuracy.  Select the
driver by default for configurations of interest.  For the curious: 32BIT
means only 32-bit DECstations support the device, not that the driver is not
64-bit clean; I have not checked that either though.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
87cff7fb0b dz: add and reorder inclusions, remove unneeded ones
Sort the header inclusions, add a few that are needed but pulled indirectly
only and remove ones that are not really used.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
0ba137e23e dz: don't panic() when request_irq() fails
Well, panic() is a little bit undue if request_irq() fails; there is probably
no need to justify it any further.  Handle the case gracefully, by
unregistering the driver.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
dbab81281d dz: always check if it is safe to console_putchar()
Polled transmission is tricky enough with the DZ11 design.  While "loop" is
set to a high value, conceptually you are not allowed to transmit without
checking whether the device offers the right transmission line (yes, it is the
device that selects the line -- the driver has no control over it other than
disabling the transmitter offered if it is the wrong one), so the loop has to
be run at least once.

Well, the '1977 or PDP11 view of how serial lines should be handled...  Except
that the serial interface used to be quite an impressive board back then
rather than chip.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Maciej W. Rozycki
d4dd1467f2 dz.h: remove useless unused module junk
Remove unused module function prototypes that would not even build if enabled.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:24 -08:00
Paul Mackerras
5ab3e84f66 Merge branch 'for-2.6.25' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx 2008-02-07 20:27:36 +11:00
Grant Likely
52b804829c [POWERPC] mpc52xx: fix compile error introduce when rebasing patch
When rebasing one of the mpc5200 psc UART patches I made a mistake and
damaged the patch.

This patch fixes the compile failure introduced in commit
25ae3a0739

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-02-06 22:29:25 -07:00
Josh Boyer
256ae6a720 Merge branch 'virtex-for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.25 2008-02-06 21:06:45 -06:00
Paul Mackerras
1f7d4f8395 Merge branch 'for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-mpc52xx into for-2.6.25 2008-02-07 11:21:09 +11:00
John Rigby
25ae3a0739 [POWERPC] mpc512x: Add MPC512x PSC support to MPC52xx psc driver
Add 512x support using the psc_ops framework established
with the previous patch.

All 512x PSCs share the same interrupt so add
IRQF_SHARED to irq flags.

Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-02-06 14:05:40 -07:00
John Rigby
599f030cc5 [POWERPC] mpc512x: Factor out 5200 dependencies from 52xx psc driver
PSC devices are different between the mpc5200 and the mpc5121
this patch localizes the differences in preparation for adding mpc5121
support to the psc uart driver.

Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-02-06 14:05:32 -07:00
Thomas Bogendoerfer
eea63e0e8a SC26XX: New serial driver for SC2681 uarts
New serial driver for SC2681/SC2691 uarts.  Older SNI RM400 machines are
using these chips for onboard serial ports.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Torben Mathiasen <device@lanana.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:06 -08:00
Thomas Bogendoerfer
5057c98a42 serial: use SGI_HAS_ZILOG for IP22_ZILOG depends
- Use SGI_HAS_ZILOG for IP22_ZILOG depends
- remove IP22 from description, because the driver works on more than
  IP22 SGI machines

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:06 -08:00
Jeff Garzik
15aafa2f9d Remove pointless casts from void pointers
Mostly in and around irq handlers.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "Luck Tony" <tony.luck@intel.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Karsten Keil <kkeil@suse.de>
Acked-by: "John W. Linville" <linville@tuxdriver.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:01 -08:00
Grant Likely
3de66a175d [POWERPC] Eliminate broken OF console initialization.
Probing of the console at console_initcall time is broken.  It tries to
call memory allocation routines which aren't initialized yet.

Problem solved by removing the early probe entirely.  The console init
is called again anyway after the uartlite device is initialized and the
memory allocation routines can be called safely.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
2008-02-06 10:23:41 -07:00
Stephen Neuendorffer
0e349b0e2d [POWERPC] Xilinx: Update compatible to use values generated by BSP generator.
Mainly, this involves two changes:
1) xilinx->xlnx (recognized standard is to use the stock ticker)
2) In order to have the device tree focus on describing what the
hardware is as exactly as possible, the compatible strings contain the
full IP name and IP version.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-02-06 10:23:21 -07:00
Grant Likely
911a317599 [POWERPC] Fix incorrectly tagged __devinitdata structures
Fix compile errors in the xilinxfb, xsysace and uartlite drivers used
by the Xilinx Virtex platform

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
2008-02-06 10:23:12 -07:00
Greg Ungerer
16791963ff m68knommu: use ARRAY_SIZE in ColdFire serial driver
Use ARRAY_SIZE macroto get maximum ports in ColdFire serial driver.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:21 -08:00
Mark A. Greer
7bbdc3d51c serial: MPSC: set baudrate when BRG divider is set.
The clock to generate the desired baudrate with the MPSC is first divided
by the Baud Rate Generator (BRG) and then by the MPSC itself.  So, when the
BRG divider is changed, the MPSC divider must also be changed to generate
the correct baudrate.  During MPSC initialization, the BRG divider is
changed but the MPSC divider isn't changed until much later.  This results
in some printk's coming out garbled.  To fix that, set the MPSC divider at
the same time that the BRG divider is changed.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:10 -08:00
Alan Cox
3e8d4e2075 serial: Coding style
Coding style tweaks and printk levels.

Signed-off-by: Alan Cox <alan@redhat.com>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:10 -08:00
Alan Cox
6d4d67beb9 serial: speed setup failure reporting
Invalid speeds are forced to 9600. Update the code for this to encode new
style baud rates properly.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:10 -08:00
Russell King
c8c6bfa39d serial: avoid stalling suspend if serial port won't drain
Some ports seem to be unable to drain their transmitters on shut down.  Such a
problem can occur if the port is programmed for hardware imposed flow control,
characters are in the FIFO but the CTS signal is inactive.

Normally, this isn't a problem because most places where we wait for the
transmitter to drain have a time-out.  However, there is no timeout in the
suspend path.

Give a port 30ms to drain; this is an arbitary value chosen to avoid long
delays if there are many such ports in the system, while giving a reasonable
chance for a single port to drain.  Should a port not drain within this
timeout, issue a warning.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:10 -08:00
Russell King
9d778a6937 serial: avoid waking up closed serial ports on resume
When we boot, serial ports remain in low power mode until they're used either
by userspace or for the kernel console.

However, if you suspend the system, and then resume, all serial ports will be
taken out of low power mode.  This is bad news for embedded devices where this
can mean higher power consumption.

Only bring a serial port out of low power mode if the port is being used as
the kernel console, or is in use by userspace.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:09 -08:00
Will Newton
74a1974172 8250.c: support specifying DW APB UARTs in device platform_data
Allow the private_data field to be specified in platform_data for the
standard 8250/16550 UART.  This field is used by DW APB type UARTs and
without this patch it's only possible to set this field when registering
the port by hand.  If private_data is not set then the driver will
potentially oops with a NULL pointer dereference.

Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:09 -08:00
Krauth.Julien
02c9b5cf9a serial: add ADDI-DATA GmbH Communication cardsin8250_pci.c and pci_ids.h
Add ADDI-DATA GmbH communication cards to 8250_pci driver.  Supported cards
are:

APCI-7300, APCI-7420, APCI-7500, APCI-7800 APCI-7300-2, APCI-7420-2,
APCI-7500-2 APCI-7300-3, APCI-7420-3, APCI-7500-3, APCI-7800-3

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Krauth J. <krauth.julien@addi-data.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:09 -08:00
Jiri Olsa
1452750afc drivers/serial/s3c2410.c: remove dead config symbols
Remove dead config symbol.

Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Dooks <ben@fluff.org>
Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:09 -08:00
Yinghai Lu
c3e4642be7 serial: keep the DTR setting for serial console.
with reverting "x86, serial: convert legacy COM ports to platform devices",
we will have the serial console before the port is probled again.

uart_add_one_port==>uart_configure_port==>set_mcttrl(port, 0) will clear
the DTR setting by uart_set_options().  then I will lose my output from
serial console again.

So try to keep DTR in uart_configure_port()

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Andi Kleen <ak@suse.de>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:09 -08:00
Olof Johansson
906da809c5 pcmcia: replace kio_addr_t with unsigned int everywhere
Remove kio_addr_t, and replace it with unsigned int.  No known architecture
needs more than 32 bits for IO addresses and ports and having a separate type
for it is just messy.

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:08 -08:00
Linus Torvalds
9ef9dc69d4 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits)
  [ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option
  [ARM] 4821/1: RealView: Remove the platform dependencies from localtimer.c
  [ARM] 4820/1: RealView: Select the timer IRQ at run-time
  [ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms
  [ARM] 4818/1: RealView: Add core-tile detection
  [ARM] 4817/1: RealView: Move the AMBA resource definitions to realview_eb.c
  [ARM] 4816/1: RealView: Move the platform-specific definitions into board-eb.h
  [ARM] 4815/1: RealView: Add clockevents suport for the local timers
  [ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore
  [ARM] 4813/1: Add SMP helper functions for clockevents support
  [ARM] 4812/1: RealView: clockevents support for the RealView platforms
  [ARM] 4811/1: RealView: clocksource support for the RealView platforms
  [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags
  [ARM] 4798/1: pcm027: fix missing header file
  [ARM] 4803/1: pxa: fix building issue of poodle.c caused by patch 4737/1
  [ARM] 4801/1: pxa: fix building issues of missing pxa2xx-regs.h
  [ARM] pxa: introduce sysdev for pxa3xx static memory controller
  [ARM] pxa: add preliminary suspend/resume code for pxa3xx
  [ARM] pxa: introduce sysdev for GPIO register saving/restoring
  [ARM] pxa: introduce sysdev for IRQ register saving/restoring
  ...
2008-02-04 15:29:53 -08:00
Russell King
0d899e1b00 Merge branches 'at91', 'ixp', 'master', 'misc', 'pxa' and 'realview' into devel
* at91:
  [ARM] 4802/1: Fix typo and remove vague comment
  [ARM] 4660/3: at91: allow selecting UART for early kernel messages
  [ARM] 4739/1: at91sam9263: make gpio bank C and D irqs work

* ixp:
  [ARM] 4809/2: ixp4xx: Merge dsmg600-power.c into dsmg600-setup.c
  [ARM] 4808/2: ixp4xx: Merge nas100d-power.c into nas100d-setup.c
  [ARM] 4807/2: ixp4xx: Merge nslu2-power.c into nslu2-setup.c
  [ARM] 4806/1: ixp4xx: Ethernet support for the nslu2 and nas100d boards
  [ARM] 4805/1: ixp4xx: Use leds-gpio driver instead of IXP4XX-GPIO-LED driver
  [ARM] 4715/2: Ethernet support for IXDP425 boards
  [ARM] 4714/2: Headers for IXP4xx built-in Ethernet and WAN drivers
  [ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE features
  [ARM] 4712/2: Adds functions to read and write IXP4xx "feature" bits
  [ARM] 4774/2: ixp4xx: Register dsmg600 rtc i2c_board_info
  [ARM] 4773/2: ixp4xx: Register nas100d rtc i2c_board_info
  [ARM] 4772/2: ixp4xx: Register nslu2 rtc i2c_board_info
  [ARM] 4769/2: ixp4xx: Button updates for the dsmg600 board
  [ARM] 4768/2: ixp4xx: Button and LED updates for the nas100d board
  [ARM] 4767/2: ixp4xx: Add bitops.h include to io.h
  [ARM] 4766/2: ixp4xx: Update ixp4xx_defconfig, enabling all supported boards

* master:
  [ARM] 4810/1: - Fix 'section mismatch' building warnings
  [ARM] xtime_seqlock: fix more ARM machines for xtime deadlocking
  [ARM] 21285 serial: fix build error

* misc:
  [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags

* pxa:
  [ARM] 4798/1: pcm027: fix missing header file
  [ARM] 4803/1: pxa: fix building issue of poodle.c caused by patch 4737/1
  [ARM] 4801/1: pxa: fix building issues of missing pxa2xx-regs.h
  [ARM] pxa: introduce sysdev for pxa3xx static memory controller
  [ARM] pxa: add preliminary suspend/resume code for pxa3xx
  [ARM] pxa: introduce sysdev for GPIO register saving/restoring
  [ARM] pxa: introduce sysdev for IRQ register saving/restoring
  [ARM] pxa: fix the warning of undeclared "struct pxaohci_platform_data"
  [ARM] pxa: change set_kset_name() to direct name assignment for MFP sysclass

* realview:
  [ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option
  [ARM] 4821/1: RealView: Remove the platform dependencies from localtimer.c
  [ARM] 4820/1: RealView: Select the timer IRQ at run-time
  [ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms
  [ARM] 4818/1: RealView: Add core-tile detection
  [ARM] 4817/1: RealView: Move the AMBA resource definitions to realview_eb.c
  [ARM] 4816/1: RealView: Move the platform-specific definitions into board-eb.h
  [ARM] 4815/1: RealView: Add clockevents suport for the local timers
  [ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore
  [ARM] 4813/1: Add SMP helper functions for clockevents support
  [ARM] 4812/1: RealView: clockevents support for the RealView platforms
  [ARM] 4811/1: RealView: clocksource support for the RealView platforms
2008-02-04 17:54:39 +00:00
Guennadi Liakhovetski
fa3218d859 [ARM] 4660/3: at91: allow selecting UART for early kernel messages
Currently early kernel messages, i.e., those from uncompression, go to the
debugging UART. And if it is enabled in the platform configuration, but
not initialized by the bootloader, the machine hangs, waiting for UART
status change. Besides, having those messages on another UART - typically
the console UART - may be preferrable. This patch allows selecting the
UART in kernel configuration.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:16:39 +00:00
Russell King
2f65baff3a [ARM] 21285 serial: fix build error
drivers/serial/21285.c: In function 'serial21285_set_termios':
drivers/serial/21285.c:280: error: 'tty' undeclared (first use in this function)
drivers/serial/21285.c:280: error: (Each undeclared identifier is reported only once
drivers/serial/21285.c:280: error: for each function it appears in.)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04 13:14:06 +00:00
Joe Perches
8f4aafec6a drivers/serial/: Spelling fixes
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 17:29:25 +02:00
Uwe Kleine-König
b885b27ce6 SERIAL_NETX_CONSOLE provides console for NetX, not IMX
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 14:55:57 +02:00
Michal Piotrowski
78b42c99af Coding style fix drivers/serial/icom.h
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 14:47:38 +02:00
Sonic Zhang
db288381e2 [Blackfin] serial driver: Add flow control support to bf54x
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02 17:05:02 +08:00
Sonic Zhang
4cb4f22b19 [Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as well
https://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3858

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02 14:29:25 +08:00
Michael Hennerich
095455682e [Blackfin] serial driver: ADSP-BF52x arch/mach support
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02 15:58:30 +08:00
Greg Ungerer
9f69ba86d6 m68knommu: use container_of in mcf.c
Use container_of() instead of assuming local uart struct is first member
of uart_port struct.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 21:00:01 +11:00
Greg Ungerer
7c74806bc9 m68knommu: use IRQF_DISABLE in m68328serial.c
Use IRQF_DISABLED instead of obsolete IRQ_FLG_STD for request_irq() flags
in m68328serial.c driver.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 21:00:01 +11:00
Greg Ungerer
ae1b5f0d23 m68knommu: configure support for new ColdFire serial driver
Add configure support for new ColdFire serial driver.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 20:54:03 +11:00
Greg Ungerer
b9ac1ecb7d m68knommu: build support for new ColdFire serial driver
Add build support for new ColdFire serial driver.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 20:54:03 +11:00
Paul Mackerras
bd45ac0c5d Merge branch 'linux-2.6' 2008-01-31 11:25:51 +11:00
Paul Mackerras
4eece4ccf9 Merge branch 'for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-mpc52xx 2008-01-31 10:50:17 +11:00
Linus Torvalds
e189f3495c Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (197 commits)
  sh: add spi header and r2d platform data V3
  sh: update r7780rp interrupt code
  sh: remove consistent alloc stuff from the machine vector
  sh: use declared coherent memory for dreamcast pci ethernet adapter
  sh: declared coherent memory support V2
  sh: Add support for SDK7780 board.
  sh: constify function pointer tables
  sh: Kill off -traditional for linker script.
  cdrom: Add support for Sega Dreamcast GD-ROM.
  sh: Kill off hs7751rvoip reference from arch/sh/Kconfig.
  sh: Drop r7780rp_defconfig, use r7780mp_defconfig as kbuild default.
  sh: Kill off dead HS771RVoIP board support.
  sh: r7785rp: Fix up DECLARE_INTC_DESC() arg mismatch.
  sh: r7785rp: Hook up the rest of the HL7785 FPGA IRQ vectors.
  sh: r2d - enable sm501 usb host function
  sh: remove voyagergx
  sh: r2d - add lcd planel timings to sm501 platform data
  sh: Add OHCI and UDC platform devices for SH7720.
  sh: intc - remove default interrupt priority tables
  sh: Correct pte size mismatch for X2 TLB.
  ...
2008-01-29 08:52:50 +11:00
Jochen Friedrich
b5677d848c [POWERPC] CPM: Rename commproc to cpm1 and cpm2_common.c to cpm2.c
Rename commproc.[ch] to cpm1.[ch] to be more consistent with cpm2. Also
rename cpm2_common.c to cpm2.c as suggested by Scott Wood. Adjust the
includes accordingly.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-28 08:31:05 -06:00
Russell King
d0d42df2a4 Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel
* at91: (24 commits)
  [ARM] 4615/4: sam926[13]ek buttons updated
  [ARM] 4765/1: [AT91] AT91CAP9A-DK board support
  [ARM] 4764/1: [AT91] AT91CAP9 core support
  [ARM] 4738/1: at91sam9261: Remove udc pullup enabling in board initialisation
  [ARM] 4761/1: [AT91] Board-support for NEW_LEDs
  [ARM] 4760/1: [AT91] SPI CS0 errata on AT91RM9200
  [ARM] 4759/1: [AT91] Buttons on CSB300
  [ARM] 4758/1: [AT91] LEDs
  [ARM] 4757/1: [AT91] UART initialization
  [ARM] 4756/1: [AT91] Makefile cleanup
  [ARM] 4755/1: [AT91] NAND update
  [ARM] 4754/1: [AT91] SSC library support
  [ARM] 4753/1: [AT91] Use DMA_BIT_MASK
  [ARM] 4752/1: [AT91] RTT, RTC and WDT peripherals on SAM9
  [ARM] 4751/1: [AT91] ISI peripheral on SAM9263
  [ARM] 4750/1: [AT91] STN LCD displays on SAM9261
  [ARM] 4734/1: at91sam9263ek: include IRQ for Ethernet PHY
  [ARM] 4646/1: AT91: configurable HZ, default to 128
  [ARM] 4688/1: at91: speed-up irq processing
  [ARM] 4657/1: AT91: Header definition update
  ...

* ep93xx:
  [ARM] 4671/1: ep93xx: remove obsolete gpio_line_* operations
  [ARM] 4670/1: ep93xx: implement IRQT_BOTHEDGE gpio irq sense type
  [ARM] 4669/1: ep93xx: simplify GPIO code and cleanups
  [ARM] 4668/1: ep93xx: implement new GPIO API

* iop:
  [ARM] 4770/1: GLAN Tank: correct physmap_flash_data width field
  [ARM] 4732/1: GLAN Tank: register rtc-rs5c372 i2c device
  [ARM] 4708/1: iop: update defconfigs for 2.6.24

* kprobes:
  ARM kprobes: let's enable it
  ARM kprobes: special hook for the kprobes breakpoint handler
  ARM kprobes: prevent some functions involved with kprobes from being probed
  ARM kprobes: don't let a single-stepped stmdb corrupt the exception stack
  ARM kprobes: add the kprobes hook to the page fault handler
  ARM kprobes: core code
  ARM kprobes: instruction single-stepping support

* ks8695:
  [ARM] 4603/1: KS8695: debugfs interface to view pin state
  [ARM] 4601/1: KS8695: PCI support

* misc:
  [ARM] remove duplicate includes
  [ARM] CONFIG_DEBUG_STACK_USAGE
  [ARM] 4689/1: small comment wrap fix
  [ARM] 4687/1: Trivial arch/arm/kernel/entry-common.S comment fix
  [ARM] 4666/1: ixp4xx: fix sparse warnings in include/asm-arm/arch-ixp4xx/io.h
  [ARM] remove reference to non-existent MTD_OBSOLETE_CHIPS
  [SERIAL] 21285: Report baud rate back via termios
  [ARM] Remove pointless casts from void pointers,
  [ARM] Misc minor interrupt handler cleanups
  [ARM] Remove at91_lcdc.h
  [ARM] ARRAY_SIZE() cleanup
  [ARM] Update mach-types

* msm:
  [ARM] msm: dma support for MSM7X00A
  [ARM] msm: board file for MACH_HALIBUT (QCT MSM7200A)
  [ARM] msm: irq and timer support for ARCH_MSM7X00A
  [ARM] msm: core platform support for ARCH_MSM7X00A

* s3c2410: (33 commits)
  [ARM] 4795/1: S3C244X: Add armclk and setparent call
  [ARM] 4794/1: S3C24XX: Comonise S3C2440 and S3C2442 clock code
  [ARM] 4793/1: S3C24XX: Add IRQ->GPIO pin mapping function
  [ARM] 4792/1: S3C24XX: Remove warnings from debug-macro.S
  [ARM] 4791/1: S3C2412: Make fclk a parent of msysclk
  [ARM] 4790/1: S3C2412: Fix parent selection for msysclk.
  [ARM] 4789/1: S3C2412: Add missing CLKDIVN register values
  [ARM] 4788/1: S3C24XX: Fix paramet to s3c2410_dma_ctrl if S3C2410_DMAF_AUTOSTART used.
  [ARM] 4787/1: S3C24XX: s3c2410_dma_request() should return the allocated channel number
  [ARM] 4786/1: S3C2412: Add SPI FIFO controll constants
  [ARM] 4785/1: S3C24XX: Add _SHIFT definitions for S3C2410_BANKCON registers
  [ARM] 4784/1: S3C24XX: Fix GPIO restore glitches
  [ARM] 4783/1: S3C24XX: Add s3c2410_gpio_getpull()
  [ARM] 4782/1: S3C24XX: Define FIQ_START for any FIQ users
  [ARM] 4781/1: S3C24XX: DMA suspend and resume support
  [ARM] 4780/1: S3C2412: Allow for seperate DMA channels for TX and RX
  [ARM] 4779/1: S3C2412: Add s3c2412_gpio_set_sleepcfg() call
  [ARM] 4778/1: S3C2412: Add armclk and init from DVS state
  [ARM] 4777/1: S3C24XX: Ensure clk_set_rate() checks the set_rate method for the clk
  [ARM] 4775/1: s3c2410: fix compilation error if only s3c2442 cpu is selected
  ...

* sa1100:
  [ARM] sa1100: add clock source support

* vfp:
  [ARM] 4584/2: ARMv7: Add Advanced SIMD (NEON) extension support
  [ARM] 4583/1: ARMv7: Add VFPv3 support
  [ARM] 4582/2: Add support for the common VFP subarchitecture
2008-01-28 13:21:21 +00:00
Yoshihiro Shimoda
7d740a066f sh: Add support for SH7763 CPU subtype.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28 13:19:02 +09:00
Yoshihiro Shimoda
31a49c4bf8 sh: Add support for SH7721 CPU subtype.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28 13:19:02 +09:00
Paul Mundt
a8f67f4b4d sh: Add SH7263 CPU support.
This adds support for the SH7263 (SH-2A) CPU.

This particular CPU is a superset of SH7203, adding some additional
peripheral blocks and hooking up additional (reserved on SH7203)
vectors in the INTC block.

No visibly nasty surprises, yet..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28 13:18:57 +09:00
Paul Mundt
6d01f51086 sh: Add SH7203 CPU support.
This adds support for the SH7203 (SH-2A) CPU.

Signed-off-by: Kieran Bingham <kbingham@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28 13:18:57 +09:00
Grant Likely
66ffbe490b [POWERPC] mpc5200: normalize compatible property bindings
Update MPC5200 drivers to also look for compatible properties in the
form "fsl,mpc5200-*" to better conform to open firmware generic names
recommended practice as published here:

http://www.openfirmware.org/1275/practice/gnames/gnamv14a.html

This patch should *not* break compatibility with older device trees
which do not use the 'fsl,' prefix.  The drivers will still bind against
the older names also.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-01-26 15:26:01 -07:00
Alan Cox
c5f333831f [SERIAL] 21285: Report baud rate back via termios
Currently reports back the requested rate not the result of the divides
but thats an easy fix for someone with h/w

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-26 14:50:01 +00:00
Greg Kroah-Hartman
15f2bbb28e kobject: convert icom to use kref, not kobject
The IBM icom serial driver is using a kobject only for reference
counting, nothing else.  So switch it to use a kref instead, which is
all that is needed, and is much smaller.

Cc: Anton Blanchard <anton@au.ibm.com>
Cc: Paul Mackerras <paulus@au.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ryan S. Arnold <rsa@us.ibm.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:09 -08:00
Paul Mackerras
dcb571be20 Merge branch 'for-2.6.25' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into for-2.6.25 2008-01-24 15:29:14 +11:00
Kumar Gala
1dd4561e7d [POWERPC] Fix compile error if CONFIG_STX_GP3 is defined
cpmux is need in all cases, having wrapped by the ifndef CONFIG_STX_GP3
was causing a compile error.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-23 19:35:20 -06:00
Timur Tabi
d7584ed2b9 [POWERPC] qe-uart: add support for Freescale QUICCEngine UART
Add file ucc_uart.c, a serial device driver for the Freescale QUICCEngine.
Update the Kconfig and Makefile accordingly.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-23 19:34:12 -06:00
Paul Mackerras
9156ad4833 Merge branch 'linux-2.6' 2008-01-24 10:07:21 +11:00
John Rigby
406b7d4f7b [POWERPC] mpc5200: Cleanup checkpatch.pl problems in mpc52xx_uart.c
In preparation of adding MPC5121 support
cleanup some things that checkpatch.pl complains
about also some minor fixes suggested by
Stephen Rothwell.

Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-01-21 11:01:33 -07:00
John Rigby
94f389485e [POWERPC] Separate MPC52xx PSC FIFO registers from rest of PSC
This is in preparation for the addition of MPC512x
PSC support.  The main difference in the 512x is
in the fifo registers.

Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-01-21 11:01:32 -07:00
Grant Likely
283029d16a [POWERPC] Add of_find_matching_node() helper function
Similar to of_find_compatible_node(), of_find_matching_node() and
for_each_matching_node() allow you to iterate over the device tree
looking for specific nodes, except that they take of_device_id
tables instead of strings.

This also moves of_match_node() from driver/of/device.c to
driver/of/base.c to colocate it with the of_find_matching_node which
depends on it.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-01-17 14:53:22 +11:00
Mike Frysinger
1ba7a3ee31 [Blackfin] serial driver: use simpler comment headers and strip out information that is maintained in the scm's log
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-01-11 15:56:26 +08:00
Stephen Neuendorffer
f67702a375 [POWERPC] Xilinx uartlite: Section type fixups
All the __devexit functions are now appropriately tagged.  This fixes
some ppc link warnings.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-01-09 07:59:00 -07:00
David S. Miller
fb445ee5f9 [SERIAL]: Fix section mismatches in Sun serial console drivers.
We're exporting an __init function, oops :-)

The core issue here is that add_preferred_console() is marked
as __init, this makes it impossible to invoke this thing from
a driver probe routine which is what the Sparc serial drivers
need to do.

There is no harm in dropping the __init marker.  This code will
actually work properly when invoked from a modular driver,
except that init will probably not pick up the console change
without some other support code.

Then we can drop the __init from sunserial_console_match()
and we're no longer exporting an __init function to modules.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-29 01:19:49 -08:00
Mike Frysinger
8851c71eb9 [Blackfin] serial driver: rework break flood anomaly handling to be more robust/realistic about what we can actually work around
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-24 19:48:04 +08:00
Mike Frysinger
0bcfd70ea1 [Blackfin] serial driver: fix bug - cache the bits of the LSR on systems where the LSR is read-to-clear
Cache the bits of the LSR on systems where the LSR is read-to-clear
so that we can safely read the LSR in random places.  this fixes
older parts where break/framing/parity/overflow was not being detected
at all in PIO mode, and this fixes newer parts where
break/framing/parity/overflow was being reported all the time
without being cleared.

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-24 19:40:05 +08:00
Sonic Zhang
4c195ad88b [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-23 23:18:08 +08:00
Paul Mackerras
c2a7dcad9f Merge branch 'linux-2.6' 2007-12-21 22:21:08 +11:00
Sonic Zhang
99ee7b5f3a [Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to console on shell restart
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920
Fix by increasing buffer tail immediately before starting tx dma.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-21 17:12:55 +08:00
Sonic Zhang
75b780bd99 [Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown.
Kernel crash for the serial driver in DMA mode:
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3679

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-21 17:03:39 +08:00
Sonic Zhang
1b73351c6a [Blackfin] serial driver: Clean up UART DMA code.
Start next TX DMA in tx dma handler instead of rx timer handler.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-21 16:45:12 +08:00
Jochen Friedrich
362f9b6fa8 [POWERPC] Move CPM command handling into the cpm drivers
This patch moves the CPM command handling into commproc.c
for CPM1 and cpm2_common.c. This is yet another preparation
to get rid of drivers accessing the CPM via the global cpmp.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
2007-12-13 22:47:16 -06:00
Martin Habets
58d784a5c7 [SERIAL] sparc: Infrastructure to fix section mismatch bugs.
This patch against 2.6.23 sparc-2.6.git contains a number of minor
cleanups of the sparc serial drivers.  Initially I fixed this build
warning:

WARNING: vmlinux.o(.text+0x107a2c): Section mismatch: reference to .init.text:add_preferred_console (between 'sunserial_console_match' and 'sunserial_console_termios')

which is done by declaring sunserial_console_match() as __init.  This
resulted in build warnings on sunserial_current_minor.  To resolve
these the variable was changed so it is no longer global, and to hide
operations on it inside 2 new functions. These functions handle the
UART minor handling code that is common to all sparc serial drivers.

These changes allowed to clean up the uart counters in all the sparc
serial drivers, and the administration of minor device numbers.

Lastly, sunserial_console_termios() does not need to be exported since
it is only called from non-modular code.

Sadly, the following build warning still exists:

WARNING: vmlinux.o(__ksymtab+0x2910): Section mismatch: reference to .init.text:sunserial_console_match (between '__ksymtab_sunserial_console_match' and '__ksymtab_sunserial_unregister_minors')

This could be resolved by not exporting sunserial_console_match(), but
this is not possible at the moment because it is being called from
modular code. On the other hand, this is a bogus warning since it
comes from a ksymtab section.

Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-12 07:36:34 -08:00
Julia Lawall
76832d8416 drivers/serial/uartlite.c: Add missing of_node_put
There should be an of_node_put when breaking out of a loop that iterates
using for_each_compatible_node.

This was detected and fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
identifier d;
type T;
expression e;
iterator for_each_compatible_node;
@@

T *d;
...
for_each_compatible_node(d,...)
  {... when != of_node_put(d)
       when != e = d
(
   return d;
|
+  of_node_put(d);
?  return ...;
)
...}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 19:43:55 -08:00
Linus Torvalds
b62c855938 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4680/1: parentheses around NR_IRQS definition
  [ARM] 4679/1: AT91: Change maintainer email address
  [ARM] 4675/1: pxa: fix mfp address definition error for pxa320
  [ARM] 4674/1: pxa: increase LCD PCLK drive strength to fast 2mA for PXA300/PXA310
  [ARM] 4673/1: pxa: add missing IRQ_SSP4 definitions for PXA3xx
  [ARM] 4672/1: pxa: fix DRCMR(n) to support PXA27x and later processors
  [ARM] 4665/1: fix __und_usr wrt accessing the undefined insn in user space
  [ARM] 4659/1: remove possibilities for spurious false negative with __kuser_cmpxchg
  [ARM] 4661/1: fix do_undefinstr wrt the enabling of IRQs
  [ARM] uengine: fix memset size error
  [ARM] 4648/1: i.MX/MX1 ensure more complete AITC initialization
  [ARM] 4611/2: AT91: Fix GPIO buttons pins on SAM9261-EK.
  [ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpio
  [ARM] 4604/2: AT91: Master clock divistor on SAM9
  [ARM] 4662/1: Fix PXA serial driver compilation if SERIAL_PXA_CONSOLE is disabled
  [ARM] PXA ssp: unlock when ssp tries to close an invalid port
  [ARM] 4654/1: pxa: update default MFP register value
  [ARM] 4653/1: pxa: fix a gpio typo in mfp-pxa320.h
  [ARM] 4652/1: pxa: fix a typo of pxa27x usb host clk definition
  [ARM] 4651/1: pxa: add PXA3xx specific IRQ definitions
2007-11-30 08:11:18 -08:00
Thomas Bogendoerfer
68576cf122 IP22ZILOG: fix lockup and sysrq
- fix lockup when switching from early console to real console
 - make sysrq reliable
 - fix panic, if sysrq is issued before console is opened

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-29 09:24:53 -08:00
Philipp Zabel
fa7f1518e8 [ARM] 4662/1: Fix PXA serial driver compilation if SERIAL_PXA_CONSOLE is disabled
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-11-26 14:39:12 +00:00