Commit Graph

176611 Commits

Author SHA1 Message Date
Zhenyu Wang
823f68fd64 drm/i915: remove full registers dump debug
This one reverts 9e3a6d155e.
As reported by http://bugzilla.kernel.org/show_bug.cgi?id=14485,
this dump will cause hang problem on some machine. If something
really needs this kind of full registers dump, that could be done
within intel-gpu-tools.

Cc: Ben Gamari <bgamari.foss@gmail.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:14 -08:00
Zhao Yakui
4547668a05 drm/i915: Add DP dpll limit on ironlake and use existing DPLL search function
For some clocks, the old Ironlake DPLL calculator wold give m/n/p
combinations that didn't match the spreadsheet of what HW validation
tests.  Instead, use the G4X DPLL calculator, which does a better job
at it.

So we use the intel_g4x_find_best_pll to calculate the DPLL for CRT/HDMI/LVDS
on ironlake. At the same time to consider the dpll setting for display port, we
add the display port DPLL limit on ironlake, which will directly use the
function of intel_find_pll_ironlake_dp to get the corresponding dpll setting.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:13 -08:00
Zhao Yakui
e5a95eb778 drm/i915: Select the correct BPC for LVDS on Ironlake
Select the correct BPC for LVDS on Ironlake. If it is 18-bit LVDS panel,
the BPC will be 6. When it is 24-bit LVDS panel, the BPC will 8.
At the same time the BPC will be 8 when the output device is CRT/HDMI/DP.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:13 -08:00
Zhao Yakui
8faf3b3174 drm/i915: Make the BPC in FDI rx/transcoder be consistent with that in pipeconf on Ironlake
Make the BPC in FDI rx/transcoder be consistent with that in pipeconf on Ironlake.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:12 -08:00
Zhao Yakui
898822ce95 drm/i915: Enable/disable the dithering for LVDS based on VBT setting
Enable/disable the dithering for LVDS based on VBT setting. On the 965/g4x
platform the dithering flag is defined in LVDS register. And on the ironlake
the dithering flag is defined in pipeconf register.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:11 -08:00
Chris Wilson
e3d8affb0d drm/i915: Permit pinning whilst the device is 'suspended'
As pinning (allocating and binding GTT memory) does not actually invoke
GPU commands, it is safe, and indeed is attempted, during resumption
from suspension:

  [drm:intel_init_clock_gating] *ERROR* failed to pin power context: -16

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:11 -08:00
Chris Wilson
9ea8d05932 drm/i915: Hold struct mutex whilst pinning power context bo.
Hugh found an error path where we were attempting to unref a bo without
holding the struct mutex:

  [drm:intel_init_clock_gating] *ERROR* failed to pin power context: -16
  ------------[ cut here ]------------
  WARNING: at drivers/gpu/drm/drm_gem.c:438 drm_gem_object_free+0x20/0x5e()
  Hardware name: ESPRIMO Mobile V5505
  Modules linked in: snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device
  Pid: 3793, comm: s2ram Not tainted 2.6.33-rc2 #4
  Call Trace:
   [<7815298e>] warn_slowpath_common+0x59/0x6b
   [<781529b3>] warn_slowpath_null+0x13/0x18
   [<78317c1a>] ? drm_gem_object_free+0x20/0x5e
   [<78317c1a>] drm_gem_object_free+0x20/0x5e
   [<78317bfa>] ? drm_gem_object_free+0x0/0x5e
   [<7829df11>] kref_put+0x38/0x45
   [<7833a5f0>] intel_init_clock_gating+0x232/0x271
   [<78317bfa>] ? drm_gem_object_free+0x0/0x5e
   [<7832c307>] i915_restore_state+0x21a/0x2b3
   [<7832379d>] i915_resume+0x3c/0xbb
   [<78174fe5>] ? trace_hardirqs_on_caller+0xfc/0x123
   [<7831c756>] ? drm_class_resume+0x0/0x3e
   [<7831c78d>] drm_class_resume+0x37/0x3e
   [<78351e0a>] legacy_resume+0x1e/0x51
   [<78351ece>] device_resume+0x91/0xab
   [<7831c756>] ? drm_class_resume+0x0/0x3e
   [<78352226>] dpm_resume+0x58/0x10f
   [<783522fb>] dpm_resume_end+0x1e/0x2c
   [<78180f80>] suspend_devices_and_enter+0x61/0x84
   [<78180ff8>] enter_state+0x55/0x83
   [<7818091c>] state_store+0x94/0xaa
   [<7829d09e>] kobj_attr_store+0x1e/0x23
   [<782098e0>] sysfs_write_file+0x66/0x99
   [<781cd2f0>] vfs_write+0x8a/0x108
   [<781cd408>] sys_write+0x3c/0x63
   [<78125c10>] sysenter_do_call+0x12/0x36
  ---[ end trace a343537f29950fda ]---

It is in fact slightly more insiduous that first appears since we are
attempting to not just free the object without the lock, but are trying
to do the whole bo manipulation without holding the lock.

Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:10 -08:00
Andrew Morton
29bd0ae25f drm/i915: fix unused var
drivers/gpu/drm/i915/i915_dma.c: In function 'i915_driver_load':
drivers/gpu/drm/i915/i915_dma.c:1114: warning: 'll_base' may be used uninitialized in this function

Partly this is because gcc isn't smart enough.  But `ll_base' does get used
uninitialised in the DRM_DEBUG() call.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:03 -08:00
Tobias Klauser
69e302a998 drm/i915: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:02 -08:00
Jesse Barnes
cda9d05c49 drm/i915: remove render reclock support
This code generally fails to adjust the render clock, and when it does,
it conflicts with some other register settings and can cause problems.

So remove this code altogether.  I'm reworking it now to do the right
thing, but the only bit it will share is the VBT check for whether
reclocking is supported, so I'm leaving that bit.

Reverts most of 652c393a33 ("add dynamic
clock frequency control"), though for many the regressions showed up
in the later 181a5336d6 ("Fix render
reclock availability detection").

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:02 -08:00
Andrew Lutomirski
1d3c36ad41 drm/i915: Fix RC6 suspend/resume
We restored RC6 twice on resume, even with modesetting off.  Instead,
only restore it once and skip RC6 initialization entirely in non-KMS mode.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:39:53 -08:00
Jesse Barnes
76446cac68 drm/i915: execbuf2 support
This patch adds a new execbuf ioctl, execbuf2, for use by clients that
want to control fence register allocation more finely.  The buffer
passed in to the new ioctl includes a new relocation type to indicate
whether a given object needs a fence register assigned for the command
buffer in question.

Compatibility with the existing execbuf ioctl is implemented in terms
of the new code, preserving the assumption that fence registers are
required for pre-965 rendering commands.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[ickle: Remove pre-emptive clear_fence_reg()]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
[anholt: Removed dmesg spam]
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:39:39 -08:00
Zhenyu Wang
c566ec4915 drm/i915: Reload hangcheck timer too for Ironlake
Make sure hangcheck timer won't beat us unexpectedly on Ironlake.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-17 11:17:38 -08:00
Jesse Barnes
b01f2c3a4a drm/i915: only enable hotplug for detected outputs
This patch changes around our hotplug enable code a bit to only enable
it for ports we actually detect and initialize.  This prevents problems
with stuck or spurious interrupts on outputs that aren't actually wired
up, and is generally more correct.

Fixes FDO bug #23183.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 14:00:05 -08:00
Kristian Høgsberg
b295d1b6e3 drm/i915: Track whether cursor needs physical address in intel_device_info
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 13:53:02 -08:00
Kristian Høgsberg
cfdf1fa23f drm/i915: Implement IS_* macros using static tables
Instead of using the IS_I9XX etc macros that expand to a ton of
comparisons, use new struct intel_device_info to capture the
capabilities of the different chipsets.  The drm_i915_private struct
will be initialized to point to the device info that correspond to
the actual device and this way, testing for a specific capability is
just a matter of checking a bit field.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 13:52:53 -08:00
Kristian Høgsberg
49ae35f2dd drm/i915: Move PCI IDs into i915 driver
The old include/drm/drm_pciids.h used to be generated from the libdrm
git repo.  We don't use that anymore so just use a local list in the
driver like everybody else.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 13:52:17 -08:00
Zhao Yakui
a2565377a5 drm/i915: Update LVDS connector status when receiving ACPI LID event
Dirk reports that nothing is displayed on LVDS when using ubuntu 9.1 after
close/reopen the LID. And I also reproduce this issue on another laptop.
After some tests and debug, it seems that it is related with that the
LVDS status is not updated in time in course of suspend/resume.

Now the LID state is used to check whether the LVDS is connected or
disconnected. And when the LID is closed, it means that the LVDS is
disconnected. When it is reopened, it means that the LVDS is connected.
At the same time on some distributions the LID event is also used to put
the system into suspend state. When the LID is closed, the system will enter
the suspend state. When the LID is reopened, the system will be resumed.

In such case when the LID is closed, user-space script will receive the LID
notification event and  detect the LVDS as disconnected. Then the system will
enter the suspended state. When the LID is reopened, the system will be
resumed. As the LVDS status is not updated in course of resume, it will cause
that the LVDS connector is marked as unused and disabled. After the resume is
finished,user-space script will try to configure the display mode for LVDS.
But unfortunately as the LVDS status is not updated in time and it is still
marked as disconnected, the LVDS and its corresponding CRTC will be disabled
again in the function of drm_helper_disable_unused_functions after changing
mode for LVDS.

So we had better check and update the status of LVDS connector after receiving
the LID notication event. Then after the system is resumed from suspended
state, we can set the display mode for LVDS correctly.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reported-by:  Dirk Hohndel <hohndel@infradead.org>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 13:23:38 -08:00
Zhao Yakui
a3cb5195f6 drm/i915: Add MALATA PC-81005 to ACPI LID quirk list
The MALATA PC-81005 laptop always reports that the LID status is closed and we
can't use it reliabily for LVDS detection. So add this box into the quirk list.

https://bugs.freedesktop.org/show_bug.cgi?id=25523

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Review-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Hector <hector1987@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 13:23:19 -08:00
Zhenyu Wang
cbda12d77e drm/i915: implement new pm ops for i915
One problem in i915 hibernate with current legacy pci pm ops is
that after we do freeze, we'll be forced to do resume once again,
which re-init some resources and do modesetting again, that is
unnecessary for hibernate. This patch trys to bypass that.

We can't resolve this within legacy pm framework, but can do it
easily with new pm ops. Suspend (S3) process has also been kept
without change.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 09:41:32 -08:00
Matthew Garrett
11ba159288 drm/i915: Don't check for lid presence when detecting LVDS
Checking for the presence of a lid in order to validate whether or not
an LVDS display exists fails on some development platforms that implement
a lid device but allow the LVDS to be disabled. The VBT is correctly
updated, but Linux assumes that an LVDS is still present and lies to
userspace. Remove the lid check and trust the VBT.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-16 09:18:48 -08:00
Daniel Vetter
96b47b6559 drm/i915: fix order of fence release wrt flushing
i915_gem_object_unbind had the ordering wrong. The other user,
i915_gem_object_put_fence_reg already has the correct ordering.

Results was usually corrupted pixmaps, especially garbled font glyphs
after a suspend/resume (because this evicts everything).

I'm still waiting for the feedback from the bug-reporters, but
because this obviously fixes a bug (at least for me) I'm already
submitting it.

Bugzilla: http://bugs.freedesktop.org/show_bug.cgi?id=25406
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
CC: stable@kernel.org
2009-12-16 09:18:37 -08:00
Eric Anholt
656cb79322 drm/i915: In the debugfs interface, unmap our address instead of the page's.
Fixes a BUG_ON in kmap_atomic for the following atomic mapping with
USER0 type.

Signed-off-by: Eric Anholt <eric@anholt.net>
2009-12-15 12:11:26 -08:00
Stephen Rothwell
8bea8672ed mfd: compile fix for twl4030 renaming
Caused by commit 0b83ddebc6 ("MFD:
twl4030: add twl4030_codec MFD as a new child to the core") interacting
with commit b07682b605 ("mfd: Rename
twl4030* driver files to enable re-use").

This file seems to have been missed in the renaming.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 09:33:36 -08:00
Linus Torvalds
d180ec5d34 Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: event tracing support
  xfs: change the xfs_iext_insert / xfs_iext_remove
  xfs: cleanup bmap extent state macros
2009-12-15 09:12:43 -08:00
Linus Torvalds
53365383c4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (80 commits)
  dm snapshot: use merge origin if snapshot invalid
  dm snapshot: report merge failure in status
  dm snapshot: merge consecutive chunks together
  dm snapshot: trigger exceptions in remaining snapshots during merge
  dm snapshot: delay merging a chunk until writes to it complete
  dm snapshot: queue writes to chunks being merged
  dm snapshot: add merging
  dm snapshot: permit only one merge at once
  dm snapshot: support barriers in snapshot merge target
  dm snapshot: avoid allocating exceptions in merge
  dm snapshot: rework writing to origin
  dm snapshot: add merge target
  dm exception store: add merge specific methods
  dm snapshot: create function for chunk_is_tracked wait
  dm snapshot: make bio optional in __origin_write
  dm mpath: reject messages when device is suspended
  dm: export suspended state to targets
  dm: rename dm_suspended to dm_suspended_md
  dm: swap target postsuspend call and setting suspended flag
  dm crypt: add plain64 iv
  ...
2009-12-15 09:12:01 -08:00
Linus Torvalds
51b736b851 Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block:
  cfq: set workload as expired if it doesn't have any slice left
  Fix a CFQ crash in "for-2.6.33" branch of block tree
  cfq: Remove wait_request flag when idle time is being deleted
  cfq-iosched: commenting non-obvious initialization
  cfq-iosched: Take care of corner cases of group losing share due to deletion
  cfq-iosched: Get rid of cfqq wait_busy_done flag
  cfq: Optimization for close cooperating queue searching
  block,xd: Delay allocation of DMA buffers until device is known
  drbd: Following the hmac change to SHASH (see linux commit 8bd1209cff)
  cfq-iosched: reduce write depth only if sync was delayed
2009-12-15 09:11:28 -08:00
Linus Torvalds
a8aa1ebdf8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: ac97_codec - increase timeout for analog sections to 5 second
  ASoC: Correct code taking the size of a pointer
  ALSA: hda - Add PCI IDs for Nvidia G2xx-series
  ALSA: sound/isa/gus: Correct code taking the size of a pointer
  ALSA: hda: Fix max PCM level to 0 dB for AD1981_HP
  ALSA: hda: Use ALC260_WILL quirk for another Acer model (0x1025007f)
2009-12-15 09:11:05 -08:00
Linus Torvalds
8f0ddf91f2 Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
  clockevents: Convert to raw_spinlock
  clockevents: Make tick_device_lock static
  debugobjects: Convert to raw_spinlocks
  perf_event: Convert to raw_spinlock
  hrtimers: Convert to raw_spinlocks
  genirq: Convert irq_desc.lock to raw_spinlock
  smp: Convert smplocks to raw_spinlocks
  rtmutes: Convert rtmutex.lock to raw_spinlock
  sched: Convert pi_lock to raw_spinlock
  sched: Convert cpupri lock to raw_spinlock
  sched: Convert rt_runtime_lock to raw_spinlock
  sched: Convert rq->lock to raw_spinlock
  plist: Make plist debugging raw_spinlock aware
  bkl: Fixup core_lock fallout
  locking: Cleanup the name space completely
  locking: Further name space cleanups
  alpha: Fix fallout from locking changes
  locking: Implement new raw_spinlock
  locking: Convert raw_rwlock functions to arch_rwlock
  locking: Convert raw_rwlock to arch_rwlock
  ...
2009-12-15 09:02:01 -08:00
Linus Torvalds
050cbb09da 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:
  avr32: update default configurations for ATNGW100, ATSTK1002 and ATSTK1006
  avr32: add default configurations for ATNGW100 mkII and EVKLCD10X
  avr32: add support for ATNGW100 mkII board
  avr32: convert to asm-generic/hardirq.h
  avr32: add two new at91 to cpu.h definition
  avr32: clean up linker script using standard macros.
  avr32: MRMT: correct setup of SPI slaves
  avr32: function for independently setting up SPI slaves
  avr32: re-instate MCI WP/CD pin assignments for ATNGW100
2009-12-15 09:01:00 -08:00
Linus Torvalds
17c330f983 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:
  sparc64: Fix clock event multiplier printf format.
  sparc64: Use clock{source,events}_calc_mult_shift().
  sparc64: Use free_bootmem_late() in mdesc_lmb_free().
  sparc: Add alignment and emulation fault perf events.
  sparc64: Add syscall tracepoint support.
  sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}()
  sparc: Use __builtin_object_size() to validate the buffer size for copy_from_user()
  sparc64: Add some missing __kprobes annotations to kernel fault paths.
  sparc64: Use kprobes_built_in() to avoid ifdefs in fault_64.c
  sparc: Validate that kprobe address is 4-byte aligned.
  sparc64: Don't specify IRQF_SHARED for LDC interrupts.
  sparc64: Fix stack debugging IRQ stack regression.
  sparc64: Fix overly strict range type matching for PCI devices.
2009-12-15 09:00:19 -08:00
Linus Torvalds
48e902f0a3 Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
  power_supply_sysfs: Handle -ENODATA in a special way
  wm831x_backup: Remove unused variables
  gta02: Set pcf50633 charger_reference_current_ma
  pcf50633: Query charger status directly
  pcf50633: Properly reenable charging when the supply conditions change
  pcf50633: Get rid of charging restart software auto-triggering
  pcf50633: introduces battery charging current control
  pcf50633: Add ac power supply class to the charger
  wm831x: Factor out WM831x backup battery charger
2009-12-15 08:59:33 -08:00
Linus Torvalds
7f6cd5408a Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: Close usb_find_interface race v3
  Revert "USB: Close usb_find_interface race"
2009-12-15 08:58:13 -08:00
Samu Onkalo
e956e6b770 lis3: update documentation to match latest changes
[akpm@linux-foundation.org: s/q/g/ (Randy)]
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
32496c76b7 lis3: scale output values to mg
Report output values as 1/1000 of earth gravity.

Output values from lis3 can be read from sysfs position entry and from
input device.  Input device can be accessed as event device and as
joystick device.  Joystick device can be in two modes.  Meaning of the
output values varies from case to case depending on the chip type and
configuration (scale).  Only joystick interface in JS_CORR_BROKEN mode
returned somehow similar output values in different configurations.
Joystick device is in that state by default in case of lis3.

Position sysfs entry, input event device and raw joystick device have been
little bit broken since meaning of the output values has been varied
between 12 and 8 bit devices.  Applications which relayed on those methods
failed if the chip is different than the expected one.

This patch converts output values to mean similar thing in different
configurations.  Both 8 and 12 bit devices reports now same acceleration
values.  If somebody implements full scale support to the driver, output
values will still mean the same.  Scaling factor and input device range
must be updated in that case.

Joystick interface in JS_CORR_BROKEN mode is not touched by this patch.
All other interfaces have different scale after this change.  For 12 bit
device scaling factor is 0.977 which keeps scaled and unscaled values are
quite close to each others.  For 8 bit device, scaled values are 18 times
bigger than unscaled values.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
a253aaef60 lis3: sysfs entry for setting chip measurement rate
It is possible to read position information at the chip measurement rate
via sysfs.  This patch adds possibility to configure chip measurement
rate.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
539954120b lis3lv02d: remove calibaration functionality
Chip is calibrated by the manufacturer.  There is no need to calibarate it
at driver level.  If the chip is used as a joystick, calibaration can be
done using joystick device calibration mechanism.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
2db4a76d5f lis3: selftest support
Implement selftest feature as specified by chip manufacturer.  Control:
read selftest sysfs entry

Response: "OK x y z" or "FAIL x y z"

where x, y, and z are difference between selftest mode and normal mode.
Test is passed when values are within acceptance limit values.

Acceptance limits are provided via platform data.  See chip spesifications
for acceptance limits.  If limits are not properly set, OK / FAIL decision
is meaningless.  However, userspace application can still make decision
based on the numeric x, y, z values.

Selftest is meant for HW diagnostic purposes.  It is not meant to be
called during normal use of the chip.  It may cause false interrupt
events.  Selftest mode delays polling of the normal results but it doesn't
cause wrong values.  Chip must be in static state during selftest.  Any
acceration during the test causes most probably failure.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
641615abfa lis3lv02d: proper power on sequence
Lis3 accelerometer sensors have quite long power on delay (up to 125
ms). This patch adds necessary delay to power on sequence for currently
supported lis3 chips.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Tested-by: Éric Piel <eric.piel@tremplin-utc.net>
Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Éric Piel
4b5d95b380 lis3: fix show rate for 8 bits chips
Originally the driver was only targeted to 12bits sensors.  When support
for 8bits sensors was added, some slight difference in the registers were
overlooked.  This should fix it, both for initialization, and for
displaying the rate.

Reported-by: Kalhan Trisal <kalhan.trisal@intel.com>
Reported-by: Christoph Plattner <christoph.plattner@gmx.at>
Tested-by: Christoph Plattner <christoph.plattner@gmx.at>
Tested-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Éric Piel
bc62c14717 lis3: update documentation and comments
Most of the documentation and comments were written when the driver was
only supporting one type of chip, only via ACPI/HP. Update the info to
the much clearer understanding that we have now.

Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
66c8569bf9 lis3lv02d: correct memory leak in module unload
polled input device itself was not free'd.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Tested-by: Éric Piel <eric.piel@tremplin-utc.net>
Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:36 -08:00
Samu Onkalo
d25a8c8115 lis3lv02d: send sync event
Send input_sync after each measurement round. This helps userspace to
detect which reported values belongs to the same measurement.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Tested-by: Éric Piel <eric.piel@tremplin-utc.net>
Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Daniel J Blueman
41e9a06236 hwmon: w83627ehf updates
Add control of fan minimum turn-on output levels, decoupling it from the
fan turn-off output level.  Add control of rate of change of fan output
level.  These in turn allow lower turn-off rotor speed and smoother
transitions for better thermal and acoustic control authority.  Add
support for constant fan speed and proportional-response operations modes.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: David Hubbard <david.c.hubbard@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Samu Onkalo
e40d6eaa79 lis3lv02d: axis remap and resource setup/release
Add the possibility to remap axes via platform data.  Function pointers
for resource setup and release purposes

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Éric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Jean Delvare <khali@linux-fr.org>
Cc:  "Trisal, Kalhan" <kalhan.trisal@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Joakim Tjernlund
ddcaccbc17 crc32: minor optimizations and cleanup
Move common crc body to new function crc32_body() cleaup and micro
optimize crc32_body for speed and less size.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Magnus Damm
14f1b75b1d mmc: let tmio-mmc use dev_name() with request_irq()
Improve the /proc/interrupts output so the irq number can be mapped to
platform device on boards with multiple tmio_mmc instances.

Signed-off-by: Magnus Damm <damm@opensource.se>
Cc: <linux-mmc@vger.kernel.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Cliff Cai
eb962d5bb7 mmc: Blackfin SD Host Controller Driver
Add SD host driver for Blackfin BF54x and BF51x.

[akpm@linux-foundation.org: fix layout, c99 warning]
Signed-off-by: Cliff Cai <cliffcai.sh@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Nicolas Ferre
74791a2dc8 mmc: atmel-mci: new MCI2 module support in atmel-mci driver
This new revision of the IP adds some improvements to the MCI already
present in several Atmel SOC.

Some new registers are added and a particular way of handling DMA
interaction lead to a new sequence in function call which is backward
compatible: On MCI2, we must set the DMAEN bit to enable the DMA
handshaking interface.  This must happen before the data transfer command
is sent.

A new function is able to differentiate MCI2 code and is based on
knowledge of processor id (cpu_is_xxx()).

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Nicolas Ferre
2635d1ba71 atmel-mci: change use of dma slave interface
Allow the use of another DMA controller driver in atmel-mci sd/mmc driver.
 This adds a generic dma_slave pointer to the mci platform structure where
we can store DMA controller information.  In atmel-mci we use information
provided by this structure to initialize the driver (with new helper
functions that are architecture dependant).

This also adds at32/avr32 chip modifications to cope with this new access
method.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00