Commit Graph

174 Commits

Author SHA1 Message Date
Linus Torvalds
132452ee23 Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6
* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6:
  efifb: Add override for 11" Macbook Air 3,1
  efifb: Support overriding fields FW tells us with the DMI data.
  fb: Reduce priority of resource conflict message
  savagefb: Remove obsolete else clause in savage_setup_i2c_bus
  savagefb: Set up I2C based on chip family instead of card id
  savagefb: Replace magic register address with define
  drivers/video/bfin-lq035q1-fb.c: introduce missing kfree
  video: s3c-fb: fix checkpatch errors and warning
  efifb: support AMD Radeon HD 6490
  s3fb: fix Virge/GX2
  fbcon: Remove unused 'display *p' variable from fb_flashcursor()
  fbdev: sh_mobile_lcdcfb: fix module lock acquisition
  fbdev: sh_mobile_lcdcfb: add blanking support
  viafb: initialize margins correct
  viafb: refresh rate bug collection
  sh: mach-ap325rxa: move backlight control code
  sh: mach-ecovec24: support for main lcd backlight
2011-04-07 12:49:17 -07:00
Lucas De Marchi
25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Paul Mundt
53f358a81e Merge branch 'viafb-next' of git://github.com/schandinat/linux-2.6 2011-03-25 07:52:38 +09:00
Alexey Dobriyan
33ee3b2e2e kstrto*: converting strings to integers done (hopefully) right
1. simple_strto*() do not contain overflow checks and crufty,
   libc way to indicate failure.
2. strict_strto*() also do not have overflow checks but the name and
   comments pretend they do.
3. Both families have only "long long" and "long" variants,
   but users want strtou8()
4. Both "simple" and "strict" prefixes are wrong:
   Simple doesn't exactly say what's so simple, strict should not exist
   because conversion should be strict by default.

The solution is to use "k" prefix and add convertors for more types.
Enter
	kstrtoull()
	kstrtoll()
	kstrtoul()
	kstrtol()
	kstrtouint()
	kstrtoint()

	kstrtou64()
	kstrtos64()
	kstrtou32()
	kstrtos32()
	kstrtou16()
	kstrtos16()
	kstrtou8()
	kstrtos8()

Include runtime testsuite (somewhat incomplete) as well.

strict_strto*() become deprecated, stubbed to kstrto*() and
eventually will be removed altogether.

Use kstrto*() in code today!

Note: on some archs _kstrtoul() and _kstrtol() are left in tree, even if
      they'll be unused at runtime. This is temporarily solution,
      because I don't want to hardcode list of archs where these
      functions aren't needed. Current solution with sizeof() and
      __alignof__ at least always works.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22 17:44:14 -07:00
Florian Tobias Schandinat
3f086fe93f viafb: initialize margins correct
This patch initializes the margins for the initial mode correct.
This is required to get the desired initial refresh rate. Also do
more verbose sanity checking to prevent misbehavior.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-21 17:01:07 +00:00
Florian Tobias Schandinat
726abbc795 viafb: refresh rate bug collection
This patch fixes multiple issues with the handling of refresh rates
especially for multi-display setups. If you experienced problems
with wrong refresh rates this patch might fix them.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-16 21:42:00 +00:00
Florian Tobias Schandinat
2563afa9ec Merge branch 'viafb-pll' into viafb-next 2011-03-12 21:54:56 +00:00
Florian Tobias Schandinat
e4fcaeff4f viafb: split pll configs up
This patch splits the pll configs up on pll versions. This allows
easy adding of other known good pll values. Additionally it made it
possible to remove invalid configurations resulting in better
behaviour for such cases. The resulting clocks are no longer stored
resulting in some computing overhead on each mode change.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-12 10:26:33 +00:00
Florian Tobias Schandinat
fd3cc69848 viafb: remove duplicated clock storage
The clocks can be easily recalculated by the timing and refresh value.
This brings us one step closer to removing VIAs modetable and use
generic ones and being easier extensible.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-12 10:22:06 +00:00
Florian Tobias Schandinat
97597a3977 viafb: always return the best possible clock
Before this patch only clocks that perfectly match were used and if
none existed this was not handled properly. This patch changes this
to always use the closest clock supported. This should behave like
before for clocks that have a perfect match but be much saner for
clocks which are slightly off.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-12 10:22:00 +00:00
Florian Tobias Schandinat
f5b1c4b3b6 viafb: remove duplicated clock information
This patch removes the direct lookup table for resolution+refresh and
pixclock by calculating this information from the mode table. Removes a
lot of dupllication and error potential by just doing a little more
calculations on each mode change.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-12 10:21:54 +00:00
Florian Tobias Schandinat
bf5ea02d90 viafb: factor lcd scaling parameters out
These parameters are the same for all currently known VIA IGPs so it
does not make any sense to store them with IGP specific data. This
saves a few bytes and helps a bit in dicovering the real differences.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-09 18:58:35 +00:00
Florian Tobias Schandinat
d90108765b viafb: strip some structures
This patch removes some write-only variables from the device management
structures. Just a small cleanup.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-09 18:58:30 +00:00
Florian Tobias Schandinat
c8350be262 viafb: remove unused data_mode and device_type
This patch is a little cleanup for the chip_info structures.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-09 18:58:28 +00:00
Florian Tobias Schandinat
dbf85f2326 viafb: kill lcd_panel_id
This patch removes all internal uses of another mostly artificial
value. It does duplicate the information of the maximum resolution and
it is not flexible as only a few resolutions exist. Hence it is better
to remove it and clean the mess up.
No runtime change expected.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-09 18:58:26 +00:00
Stephen Hemminger
23e5abd555 video via: make local variables static
Many local variables should be declared static.
Found by sparse, compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-09 17:06:29 +00:00
Stephen Hemminger
b65d6040e3 video via: fix iomem access
This driver is not respecting the iomem memory space restrictions
and does direct access. This works on x86 but is non-portable and
should not be done.  Converted memcpy() of 2 to readw.
Last post increment of romptr was unnecessary since pointer never
used after that.

Found by sparse, compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-09 17:04:12 +00:00
Peter Huewe
a625e305ed video/via: drop deprecated (and unused) i2c_adapter.id
This patch removes an assignment to the deprecated i2c_adapter.id
field. Since the field isn't used anywhere else in the driver it is
save to remove it.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-03-02 17:11:58 +00:00
Torben Hohn
ac751efa6a console: rename acquire/release_console_sem() to console_lock/unlock()
The -rt patches change the console_semaphore to console_mutex.  As a
result, a quite large chunk of the patches changes all
acquire/release_console_sem() to acquire/release_console_mutex()

This commit makes things use more neutral function names which dont make
implications about the underlying lock.

The only real change is the return value of console_trylock which is
inverted from try_acquire_console_sem()

This patch also paves the way to switching console_sem from a semaphore to
a mutex.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: make console_trylock return 1 on success, per Geert]
Signed-off-by: Torben Hohn <torbenh@gmx.de>
Cc: Thomas Gleixner <tglx@tglx.de>
Cc: Greg KH <gregkh@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-26 10:50:06 +10:00
Paul Mundt
dc7c0b6a6d Merge branch 'viafb-next' of git://github.com/schandinat/linux-2.6 2010-11-10 12:04:41 +09:00
Daniel Drake
b884a94ed1 viafb: Add OLPC XO-1.5 port configs
The OLPC XO-1.5 does not use the standard port wiring suggested
in the viafb driver.

This is required for the upcoming OLPC DCON and via-camera drivers,
to be submitted soon.

Signed-off-by: Daniel Drake <dsd@laptop.org>
[fts: removed useless ifdef's and corrected comment]
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2010-11-09 16:38:09 +00:00
Jonathan Corbet
67eb6f9617 viafb: suspend/resume for GPIOs
Be sure to re-enable GPIO lines on resume.  Users still have to
be sure to set them properly.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2010-11-09 16:18:29 +00:00
Daniel Drake
751305d9b2 viafb: General power management infrastructure
Multiple devices need S/R hooks (framebuffer, GPIO, camera).
Add infrastructure and convert existing framebuffer code to the new
model.

This patch should create no functional change.
Based on earlier work by Jonathan Corbet.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2010-11-09 16:17:02 +00:00
Linus Torvalds
0851668fdd Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (505 commits)
  [media] af9015: Fix max I2C message size when used with tda18271
  [media] IR: initialize ir_raw_event in few more drivers
  [media] Guard a divide in v4l1 compat layer
  [media] imon: fix nomouse modprobe option
  [media] imon: remove redundant change_protocol call
  [media] imon: fix my egregious brown paper bag w/rdev/idev split
  [media] cafe_ccic: Configure ov7670 correctly
  [media] ov7670: allow configuration of image size, clock speed, and I/O method
  [media] af9015: support for DigitalNow TinyTwin v3 [1f4d:9016]
  [media] af9015: map DigitalNow TinyTwin v2 remote
  [media] DigitalNow TinyTwin remote controller
  [media] af9015: RC fixes and improvements
  videodev2.h.xml: Update to reflect the latest changes at videodev2.h
  [media] v4l: document new Bayer and monochrome pixel formats
  [media] DocBook/v4l: Add missing formats used on gspca cpia1 and sn9c2028
  [media] firedtv: add parameter to fake ca_system_ids in CA_INFO
  [media] tm6000: fix a macro coding style issue
  tm6000: Remove some ugly debug code
  [media] Nova-S-Plus audio line input
  [media] [RFC,1/1] V4L2: Use new CAP bits in existing RDS capable drivers
  ...
2010-10-28 09:35:11 -07:00
Florian Tobias Schandinat
51f4332bb5 viafb: add initial VX900 support
This patch adds basic support for the new VX900 IGP. Almost everything
that was implemented for other IGPs is expected to work also on VX900
after this patch. The only known issue is that on the CRT output mode
setting does not always work.
It is clear that the possibility for regressions is zero.

A big thanks to VIA Technologies for making this possible and
supporting this work.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Jonathan Corbet <corbet@lwn.net>
2010-10-24 13:04:55 +00:00
Florian Tobias Schandinat
adac8d65f3 viafb: fix hardware acceleration for suspend & resume
This patch splits the acceleration initialization in two parts:
The first is only called during probe and is used to allocate
resources. The second part is also called on resume to reinitalize
the 2D engine. This should fix all acceleration issues after resume
most notable an "invisible" cursor and as we do nothing special it is
reasonable to assume that it works on all supported IGPs.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-10-24 13:04:53 +00:00
Florian Tobias Schandinat
466bc7fc42 viafb: make suspend and resume work (on all machines?)
This patch removes the dangerous suspend and resume code that was
developed for VX855 only. After this the framebuffer is expected to
cause no longer serious (freezing) issues on any machines.
However the hardware acceleration is broken now so only doing resume
with unaccelerated framebuffers is save. This did not work previously
as the 2D engine is not mapped if the framebuffer is not accelerated.
The acceleration issue will be addressed later.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-10-24 13:04:51 +00:00
Florian Tobias Schandinat
b75f2c01de viafb: restore display on resume
This patch makes viafb restore the display on resume by calling
viafb_set_par. Resumeing has still its issues:
- will probably freeze most machines (for me on VX800 reliable on the
  second resume)
- under some configurations the screen appears on the wrong output
  device (reason unknown)

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-10-24 13:04:47 +00:00
Deepak Saxena
3fd9b6cc38 Minimal support for viafb suspend/resume
This patch adds minimal support for suspend/resume of the
VIA framebuffer device. It requires a version of OFW
that restores the video mode.

This patch is OLPC-specific as the proper upstream solution
is to move the VIA video path to using the kernel modesetting
infrastructure and doing a proper save/restore in the kernel.

[jc: extensive changes for 2.6.34 merge]
Signed-off-by: Deepak Saxena <dsaxena@laptop.org>
[fts: viafb_driver moved from viafbdev.c to via-core.c]
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-10-24 13:04:46 +00:00
Jonathan Corbet
024fafbac3 [media] Add the via framebuffer camera controller driver
Add a driver for the video capture port on VIA integrated chipsets.  This
version has a remaining OLPCism or two and expects to be talking to an
ov7670; those can be improved as the need arises.

This work was supported by the One Laptop Per Child project.
Thanks to Laurent Pinchart for a number of useful comments.

Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 13:45:28 -02:00
Florian Tobias Schandinat
efd4f6398d viafb: use proper register for colour when doing fill ops
The colour was written to a wrong register for fillrect operations.
This sometimes caused empty console space (for example after 'clear')
to have a different colour than desired. Fix this by writing to the
correct register.
Many thanks to Daniel Drake and Jon Nettleton for pointing out this
issue and pointing me in the right direction for the fix.

Fixes http://dev.laptop.org/ticket/9323

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Daniel Drake <dsd@laptop.org>
Cc: Jon Nettleton <jon.nettleton@gmail.com>
Cc: stable@kernel.org
2010-09-24 02:15:29 +00:00
Florian Tobias Schandinat
a2aa9f9f5a viafb: rename output devices
Now it looks like we finally know enough about the output devices to give
them proper names. As VIA_96 is often referred to as DVP0 rename it to
VIA_DVP0. As VIA_6C and VIA_93 seem to exist only on CLE266 and "replace"
DVP0 and DVP1 there rename them to VIA_LDVP0 and VIA_LDVP1 (L as legacy).
The proc names were changed accordingly which should be harmless as they
were just introduced and not beyond RFC state.
This patch should make things a bit more comfortable and less scary.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Andrew Morton <akpm@linux-foundation.org>
2010-09-24 02:15:25 +00:00
Florian Tobias Schandinat
dd7a0b08cd viafb: add a mapping of supported output devices
This patch maps supported output devices to IGP versions. This list may
contain errors as most of it is derived of the driver source but it should
be correct enough to provide a good help. The devices are exported via a
proc entry in the same format as those showing the output devices per IGA.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Andrew Morton <akpm@linux-foundation.org>
2010-09-24 02:15:23 +00:00
Florian Tobias Schandinat
2e1abbdd1d viafb: set sync polarity for all output devices
This patch sets the sync polarity for all output devices, not only CRT.
This may give some people a working screen but only if lcd scaling and
centering are not used as it is currently too dificult to propagate a
different resolution (from what the application thinks) to the correct
output device. Hopefully this does not introduce regressions as the
polarity of non-CRT devices was completly ignored before.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:15:18 +00:00
Florian Tobias Schandinat
7f0e153e2c viafb: add function to change sync polarity per device
At the moment only the sync polarity for CRT is handled but there are
also bits for controlling the sync polarity for other output devices.
Add a function to change those similar to the other output device
functions.
There is no runtime change yet as the code still handles only CRT.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:15:16 +00:00
Florian Tobias Schandinat
e029ab0d02 viafb: reduce I2C timeout and delay
This patch reduces the value for I2C timeout and udelay.
The udelay was reduced to 10 (old: 40) which is still very high as for
standard-mode I2C even 5 should work. This gives a speedup of factor 4
when talking to I2C devices.
The timeout was reduced to 2 (old: 20) which is taken from the radeon
driver so it should work as well. This gives a speedup of factor 10 when
detecting that there is no I2C device we want to talk to.
This causes a huge improvement of device initialization time.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:15:14 +00:00
Florian Tobias Schandinat
ee40b7d1c0 viafb: enable I2C for CRT
This patch enables the I2C port to talk with the CRT. This allows adding
EDID reading and parsing capability for CRTs.
Just a small preparation, no notable changes in user experience yet.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:15:12 +00:00
Florian Tobias Schandinat
85c5702ac0 viafb: fix i2c_transfer error handling
i2c_transfer returns negative errno on error and number of messages
processed on success. Just returning this value would give a poor
interface as it is not obvious that you must compare with 2 after reading
1 or n bytes and with 1 after writing 1 byte to determine if it was
successful. To avoid this error prone interface convert the error code
of a successful read/write to zero and all other non-negative values to
an negative error code.
This fixes a regression introduced by
	via: Rationalize vt1636 detection
which resulted in no longer detecting a VT1636 chip and therefore has
broken the output in configurations which contain this chip.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: stable@kernel.org
2010-09-24 02:15:11 +00:00
Florian Tobias Schandinat
dbc2809824 viafb: vt1636 cleanup
This patch merges tbl1636 into vt1636 and cleans it up as the data was
only used there anyway. No runtime changes are expected.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:15:05 +00:00
Florian Tobias Schandinat
6f9422d4e4 viafb: introduce per output device power management
This patch moves common parts of dvi.c, lcd.c and vt1636.c to hw.c to
start a per output device power management. There should be no runtime
changes aside that this patch enables the proc interface to enable/disable
devices when needed which greatly increases the chances that changes to
the output device configuration will work. However the power management is
not yet complete so it might fail on some configurations. As this area is
quite complex and touches undocumented things there is a slight chance of
regressions.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:15:03 +00:00
Florian Tobias Schandinat
c2a07c932d viafb: limit LCD code impact
This patch cleans the LCD code up. It forbids overwritting global
decissions like what IGA should be used as the source and whether to
enable the second display channel. Additionally it removes a bit code
duplication.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:15:01 +00:00
Florian Tobias Schandinat
2a9183923a viafb: add interface for output device configuration
This patch extends the proc entry to contain a possibility to view and
change the output devices for each IGA. This is useful for debugging
output problems as it provides a reliable way to query which low level
devices are active after VIAs output device configuration nightmare
happended. It's as well suitable for daily use as one can change the
output configuration on the fly for example to connect a projector.
At the moment it's still unstable. The reason is that we have to handle
a bunch of undocumented output devices (those without a proper name) and
that this patch is the first step to collect and verify the needed
information. Basically the only configuration change that is expected to
work at the moment is switching output devices between IGA1 and IGA2.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Andrew Morton <akpm@linux-foundation.org>
2010-09-24 02:14:59 +00:00
Florian Tobias Schandinat
cd7e9103e9 viafb: merge the remaining output path with enable functions
This patch merges the remaining functionality of the output path
function in the associated enabling functions. This is very natural as
most of the remaining code does actually enable the device.
Just some more or less intelligent code merge. If no stupid mistakes
occured there should be no regressions.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:58 +00:00
Florian Tobias Schandinat
bc68488751 viafb: use new device routing
This patch uses the iga{1,2}_devices variables to select which IGA
should be the source. Doing this is convinient, more powerfull
than the older scheme and easy extendable to support further output
devices. It is not yet completed as the device on/off selection needs
to be converted to the same scheme to take full advantage.
No visible changes yet as we want to complete the transition before
anouncing any unstabke interface.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:52 +00:00
Florian Tobias Schandinat
18d9dc08b2 viafb: add new output device management
This patch adds a new output device management that stores for each
IGA which output devices are routed to it and a compatiblity layer
that converts the old per-output device values in the new format.
Bounding the output devices to each IGA is a central idea of the
cleanup. Doing it this way should be easier and make much more sense
than the old format which happily mixed different output devices
together and did not even take into account that some devices are no
longer available on newer chipsets.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:50 +00:00
Florian Tobias Schandinat
661c65cd0c viafb: reduce viafb_set_iga_path usage
The result of viafb_set_iga_path can change after init only in the
hotplug ioctl. So we can move it there rather than doing it always
when a new mode is set. The setup during init is done via a call
from the init chip funtion.
This change enables a stable mapping between the old device scheme
and a new more powerfull one.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:48 +00:00
Florian Tobias Schandinat
f4ab2f7a21 viafb: propagate __init and __devinit
There are a lot of init functions which are not marked as such.
Fix this.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:46 +00:00
Florian Tobias Schandinat
a54be174e4 viafb: rework output device routing
This patch rips the device routing out of the 3 main functions to
separate functions to make them available for transition to a better
controlling scheme.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:44 +00:00
Florian Tobias Schandinat
b002741d17 viafb: enable second display channel at central place
Move the enabling of the second display channel to the generic
output routing function and do it exactly if something is using it.
This unifies a zoo of variants how to do it and does no longer
disable it if LCD is not on the second display which is much saner
as there can be other users who need it. Probably this did not cause
any problems so far as we only recently started dual fb support and
otherwise there won't be other users and LCD is preferred assigned to
second display channel.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:38 +00:00
Florian Tobias Schandinat
414d3ce1b3 viafb: unify output path configuration
Move all output path routing directly in the viafb_setmode. This
gives a better overview and allows to factor similar parts out.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
2010-09-24 02:14:36 +00:00