Commit graph

388872 commits

Author SHA1 Message Date
Lan Tianyu 016d5baad0 ACPI / battery: Fix parsing _BIX return value
The _BIX method returns extended battery info as a package.
According the ACPI spec (ACPI 5, Section 10.2.2.2), the first member
of that package should be "Revision".  However, the current ACPI
battery driver treats the first member as "Power Unit" which should
be the second member.  This causes the result of _BIX return data
parsing to be incorrect.

Fix this by adding a new member called 'revision' to struct
acpi_battery and adding the offsetof() information on it to
extended_info_offsets[] as the first row.

[rjw: Changelog]
Reported-and-tested-by: Jan Hoffmann <jan.christian.hoffmann@gmail.com>
References: http://bugzilla.kernel.org/show_bug.cgi?id=60519
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Cc: 2.6.34+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-07-30 14:00:42 +02:00
Lars-Peter Clausen 610d80eaa9 ASoC: bf5xx-ac97: Fix compile error with SND_BF5XX_HAVE_COLD_RESET
If CONFIG_SND_BF5XX_HAVE_COLD_RESET is enabled building the blackfin ac97 driver
fails with the following compile error:
	sound/soc/blackfin/bf5xx-ac97.c: In function ‘asoc_bfin_ac97_probe’:
	sound/soc/blackfin/bf5xx-ac97.c:297: error: expected ‘;’ before ‘{’ token
	sound/soc/blackfin/bf5xx-ac97.c:302: error: label ‘gpio_err’ used but not defined

The issue was introduced in commit 6dab2fd7 ("ASoC: bf5xx-ac97: Convert to
devm_gpio_request_one()").

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-30 12:51:02 +01:00
David S. Miller a0db856a95 net_sched: Fix stack info leak in cbq_dump_wrr().
Make sure the reserved fields, and padding (if any), are
fully initialized.

Based upon a patch by Dan Carpenter and feedback from
Joe Perches.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-30 00:16:21 -07:00
Dave Airlie e9e3c8a20b Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6
nouveau fixes a number of regressions and a few user triggerable oops
since -rc1. Along with a few mpeg engine fixes.

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nouveau: fix semaphore dmabuf obj
  drm/nouveau/vm: make vm refcount into a kref
  drm/nv31/mpeg: don't recognize nv3x cards as having nv44 graph class
  drm/nv40/mpeg: write magic value to channel object to make it work
  drm/nouveau: fix size check for cards without vm
  drm/nv50-/disp: remove dcb_outp_match call, and related variables
  drm/nva3-/disp: fix hda eld writing, needs to be padded
  drm/nv31/mpeg: fix mpeg engine initialization
  drm/nv50/mc: include vp in the fb error reporting mask
  drm/nouveau: fix null pointer dereference in poll_changed
  drm/nv50/gpio: post-nv92 cards have 32 interrupt lines
  drm/nvc0/fb: take lock in nvc0_ram_put()
  drm/nouveau/core: xtensa firmware size needs to be 0x40000 no matter what
2013-07-30 16:49:57 +10:00
Maarten Lankhorst 7a7da592cb drm/nouveau: fix semaphore dmabuf obj
Fixes some dmabuf object errors on nv50 chipset and below.

Cc: stable@vger.kernel.org [3.7+]
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 16:46:55 +10:00
Ben Skeggs e0bacd2f7e drm/nouveau/vm: make vm refcount into a kref
Never used to be required, but a recent change made it necessary.

Reported-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 16:42:29 +10:00
Dave Airlie ca089b7266 Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos
This pull request fixes module build and g2d clock
   control issues, and includes related cleanup.

* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: Remove module.h header inclusion
  drm/exynos: consider common clock framework to g2d driver.
  drm/exynos: fix module build error
  drm/exynos: exynos_drm_ipp: fix return value check
2013-07-30 14:04:44 +10:00
Ilia Mirkin dc409df944 drm/nv31/mpeg: don't recognize nv3x cards as having nv44 graph class
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:05:06 +10:00
Ilia Mirkin 3d8b2b489e drm/nv40/mpeg: write magic value to channel object to make it work
Looks like the rewrite in commit ebb945a94b ("drm/nouveau: port all
engines to new engine module format") missed that one little detail.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:05:00 +10:00
Maarten Lankhorst 35095f7529 drm/nouveau: fix size check for cards without vm
Op 24-07-13 17:55, Dan Carpenter schreef:
> Hello Maarten Lankhorst,
>
> This is a semi-automatic email about new static checker warnings.
>
> The patch 0108bc8081: "drm/nouveau: do not allow negative sizes for
> now" from Jul 7, 2013, leads to the following Smatch complaint:
>
> drivers/gpu/drm/nouveau/nouveau_bo.c:222 nouveau_bo_new()
> 	 warn: variable dereferenced before check 'drm->client.base.vm' (see line 201)
>
> drivers/gpu/drm/nouveau/nouveau_bo.c
>    200		int type = ttm_bo_type_device;
>    201		int max_size = INT_MAX & ~((1 << drm->client.base.vm->vmm->lpg_shift) - 1);
>                                                  ^^^^^^^^^^^^^^^^^^^
> New dereference.
>
>    202
>    203		if (size <= 0 || size > max_size) {
>    204			nv_warn(drm, "skipped size %x\n", (u32)size);
>    205			return -EINVAL;
>    206		}
>    207
>    208		if (sg)
>    209			type = ttm_bo_type_sg;
>    210
>    211		nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
>    212		if (!nvbo)
>    213			return -ENOMEM;
>    214		INIT_LIST_HEAD(&nvbo->head);
>    215		INIT_LIST_HEAD(&nvbo->entry);
>    216		INIT_LIST_HEAD(&nvbo->vma_list);
>    217		nvbo->tile_mode = tile_mode;
>    218		nvbo->tile_flags = tile_flags;
>    219		nvbo->bo.bdev = &drm->ttm.bdev;
>    220
>    221		nvbo->page_shift = 12;
>    222		if (drm->client.base.vm) {
>                     ^^^^^^^^^^^^^^^^^^^
> Old check.
>
>    223			if (!(flags & TTM_PL_FLAG_TT) && size > 256 * 1024)
>    224				nvbo->page_shift = drm->client.base.vm->vmm->lpg_shift;
>
> regards,
> dan carpenter

8<-----
Commit 0108bc8081: "drm/nouveau: do not allow negative sizes for now" broke
older nvidia gpu's that lack a vm. Add an explicit check to handle this.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: konrad wilk <konrad.wilk@oracle.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:52 +10:00
Emil Velikov 9a7046d55f drm/nv50-/disp: remove dcb_outp_match call, and related variables
Unused and irrelavant since the code move of DP training/linkcontrol interrupt

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:45 +10:00
Ilia Mirkin 02d69294a1 drm/nva3-/disp: fix hda eld writing, needs to be padded
Commits 0a9e2b959 (drm/nvd0/disp: move HDA codec setup to core) and
a4feaf4ea (drm/nva3/disp: move hda codec handling to core) moved code
around but neglected to fill data up to 0x60 as before. This caused
/proc/asound/cardN/eld#3.0 to show eld_valid as 0. With this patch, that
file is again populated with the correct data.

See https://bugs.freedesktop.org/show_bug.cgi?id=67051

Reported-and-tested-by: Alex <alupu01@gmail.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:38 +10:00
Ilia Mirkin 18f35fa658 drm/nv31/mpeg: fix mpeg engine initialization
object->engine is null, which leads to a null deref down the line

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:32 +10:00
Ilia Mirkin 921837634d drm/nv50/mc: include vp in the fb error reporting mask
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:25 +10:00
Maarten Lankhorst 8a258353ed drm/nouveau: fix null pointer dereference in poll_changed
Fixes vgaswitcheroo on a card without display.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:19 +10:00
Emil Velikov 8ff8605640 drm/nv50/gpio: post-nv92 cards have 32 interrupt lines
Since the original merge of nouveau to upstream kernel, we were assuming
that nv90 (and later) cards have 32 lines.

Based on mmio traces of the binary driver, as well as PBUS error messages
during read/write of the e070/e074 registers, we can conclude that nv92
has only 16 lines whereas nv94 (and later) cards have 32.

Reported-and-tested-by: David M. Lloyd <david.lloyd@redhat.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:14 +10:00
Roy Spliet dedaa8f0e6 drm/nvc0/fb: take lock in nvc0_ram_put()
Kernel panic caused by list corruption in ltcg seems to indicate a
concurrency issue.

Take mutex of pfb like nv50_ram_put() to eliminate concurrency.

V2: Separate critical section into separate function, avoid taking the
    lock twice on NVC0

Signed-off-by: Roy Spliet <r.spliet@student.tudelft.nl>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:04:07 +10:00
Ilia Mirkin bfcd92a0ae drm/nouveau/core: xtensa firmware size needs to be 0x40000 no matter what
The current logic is wrong since we send fw->size >> 8 to the
card. Rounding the size up by 0x100 and 0x1000 didn't seem to help,
the card still hung, so go back to what the blob does -- 0x40000.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30 13:03:59 +10:00
Linus Torvalds 36f571e9ed This fixes corrupted video capture, seen with IIDC/DCAM video and certain
buffer settings.  (Regression since v3.4 inclusive.)
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Merge tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewire regression fix from Stefan Richter:
 "This fixes corrupted video capture, seen with IIDC/DCAM video and
  certain buffer settings.  (Regression since v3.4 inclusive.)"

* tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: fix libdc1394/FlyCap2 iso event regression
2013-07-29 17:08:22 -07:00
Linus Torvalds 8027678202 SMP build breakage
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Merge tag 'arc-v3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fix from Vineet Gupta:
 "SMP build breakage fix"

* tag 'arc-v3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: SMP build breakage
2013-07-29 17:07:45 -07:00
Egbert Eich de7500eafc drm/mgag200: Fix LUT programming for 16bpp
Since there are only 32 (64) distinct color values for each color
in 16bpp Matrox hardware expects those in a 'dense' manner, ie in
the first 32 (64) entries of the respective color.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30 09:44:42 +10:00
Takashi Iwai da55839870 drm/mgag200: Fix framebuffer pitch calculation
The framebuffer pitch calculation needs to be done differently for bpp == 24
- check xf86-video-mga for reference.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30 09:44:30 +10:00
Egbert Eich 3d5a1c5e30 drm/mgag200: Add sysfs support for connectors
Signed-off-by: Egbert Eich <eich@suse.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30 09:44:24 +10:00
Egbert Eich 64c2907664 drm/mgag200: Add an crtc_disable callback to the crtc helper funcs
Signed-off-by: Egbert Eich <eich@suse.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30 09:44:20 +10:00
Egbert Eich 030f19f0e2 drm/mgag200: Fix logic in mgag200_bo_pin() (v2)
Add missing 'return 0;'.

v2: Simplified patch as suggested by Dave Airlie <airlied@redhat.com>

Signed-off-by: Egbert Eich <eich@suse.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30 09:43:59 +10:00
Dave Airlie 782cf7d84a Merge branch 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux
Alex writes:
A few more radeon bug fixes, mostly for SI dpm.  At this point dpm is
pretty solid across the majority of asics.  I think we mostly just have
corner cases and fixing up some of the trickier features at this point.

* 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon/dpm: fix and enable reclocking on SI
  drm/radeon/dpm: disable cac setup on SI
  drm/radeon/si: disable cgcg and pg for now
  drm/radeon/dpm: fix forcing performance state to low on cayman
  drm/radeon/atom: fix fb when fetching engine params
  drm/radeon: properly handle cg on asics without UVD
  drm/radeon/dpm: fix powertune handling for pci id 0x6835
  drm/radeon/dpm: fix si_calculate_memory_refresh_rate()
  drm/radeon/dpm: fix display gap programming on SI
  drm/radeon: fix audio dto programming on DCE4+
2013-07-30 09:43:28 +10:00
Rafael J. Wysocki 2a99859932 cpufreq: Fix cpufreq driver module refcount balance after suspend/resume
Since cpufreq_cpu_put() called by __cpufreq_remove_dev() drops the
driver module refcount, __cpufreq_remove_dev() causes that refcount
to become negative for the cpufreq driver after a suspend/resume
cycle.

This is not the only bad thing that happens there, however, because
kobject_put() should only be called for the policy kobject at this
point if the CPU is not the last one for that policy.

Namely, if the given CPU is the last one for that policy, the
policy kobject's refcount should be 1 at this point, as set by
cpufreq_add_dev_interface(), and only needs to be dropped once for
the kobject to go away.  This actually happens under the cpu == 1
check, so it need not be done before by cpufreq_cpu_put().

On the other hand, if the given CPU is not the last one for that
policy, this means that cpufreq_add_policy_cpu() has been called
at least once for that policy and cpufreq_cpu_get() has been
called for it too.  To balance that cpufreq_cpu_get(), we need to
call cpufreq_cpu_put() in that case.

Thus, to fix the described problem and keep the reference
counters balanced in both cases, move the cpufreq_cpu_get() call
in __cpufreq_remove_dev() to the code path executed only for
CPUs that share the policy with other CPUs.

Reported-and-tested-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: 3.10+ <stable@vger.kernel.org>
2013-07-30 00:32:00 +02:00
Darren Hart e26439ce03 serial: pch_uart: Fix signed-ness and casting of uartclk related fields
Storing one struct per known board would be overkill. Pre-cast the
driver_data pointer to an unsigned long to avoid the pointer to int
compiler warning:

drivers/tty/serial/pch_uart.c:431:10: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]

Unify the signed-ness of the baud and uartclk types throughout the
driver.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 15:27:48 -07:00
Alex Deucher 63f22d0e98 drm/radeon/dpm: fix and enable reclocking on SI
The SMC interface changed compared to Cayman and
previous asics.  Set the enabled levels properly
and enable reclocking by default when dpm is enabled.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:42 -04:00
Alex Deucher d05f7e700a drm/radeon/dpm: disable cac setup on SI
Disable cac setup on SI for now since it causes
strange performance level restrictions on certain
cards.  I suspect there may be issues with some of
the 64 bit fixed point double emulation that is used
to set up those parameters.  I need to double check
the math before this can be re-enabled.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:41 -04:00
Alex Deucher 3652f00591 drm/radeon/si: disable cgcg and pg for now
Coarse grain clockgating causes problems with reclocking on
some cards and powergating (verde only) causes problems with
ring initialization.  The proper fix (restructuring the init
sequences) is too invasive for 3.11 so just disable them for
now.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:40 -04:00
Alex Deucher f86d0269b4 drm/radeon/dpm: fix forcing performance state to low on cayman
Need to program EnabledLevels to 1 to force the low state.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:40 -04:00
Alex Deucher 20fab6415c drm/radeon/atom: fix fb when fetching engine params
For correctness.  The fb divider isn't actually used
in any of the relevant dpm code.  It's calculated
from the other parameters.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:39 -04:00
Alex Deucher b2d70917e4 drm/radeon: properly handle cg on asics without UVD
Don't try and enable clockgating if the asic doesn't have
UVD.  Use rdev->has_uvd rather than using local checks.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:38 -04:00
Alex Deucher 46348dc29b drm/radeon/dpm: fix powertune handling for pci id 0x6835
0x6835 should be treated as a cape verde pro.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:38 -04:00
Alex Deucher f44a0120ef drm/radeon/dpm: fix si_calculate_memory_refresh_rate()
Update alogorithm as per internal advice.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:37 -04:00
Alex Deucher 489bc476b4 drm/radeon/dpm: fix display gap programming on SI
Need to set the DISP*_GAP fields as well as the
DISP*_GAP_MCHG fields.  Same as on previous asics.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-29 18:14:36 -04:00
Alex Deucher 7d61d83582 drm/radeon: fix audio dto programming on DCE4+
We need to set the dto source before setting the
dividers otherwise we may get stability problems
with the dto leading to audio playback problems.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
2013-07-29 18:14:36 -04:00
Rick Farina (Zero_Chaos) fed1f1ed90 USB: serial: ftdi_sio: add more RT Systems ftdi devices
RT Systems makes many usb serial cables based on the ftdi_sio driver for
programming various amateur radios.  This patch is a full listing of
their current product offerings and should allow these cables to all
be recognized.

Signed-off-by: Rick Farina (Zero_Chaos) <zerochaos@gentoo.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:38:38 -07:00
Elen Song e469719344 serial: at91: add dma support in usart binding descriptions
Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:05:08 -07:00
Elen Song 2e68c22fde serial: at91: make UART support dma and pdc transfers
Because the UART lack of receive timeout register, so we use a timer to trigger
data receive.
The DBGU is regarded as UART.

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:05:04 -07:00
Elen Song 055560b04a serial: at91: distinguish usart and uart
Distinguish usart and uart by read ip name register,
The usart read name is "USAR",
The uart and dbgu read name is "DBGU".

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:04:12 -07:00
Elen Song 33d64c4ffa serial: at91: support run time switch transfer mode
We will switch to pio mode when request of dma or pdc fail.
But soon or later, when the request is success, the transfer mode can switch to them at
next open serial port action.
So in startup stage, we should get original transfer mode.

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:03:30 -07:00
Elen Song 34df42f59a serial: at91: add rx dma support
Request a cyclic dma channel for rx dma use. Use cyclic transfer is to prevent
receive data overrun.

We allocate a cycle dma cookie after request channel,
after that, enable uart timeout interrupt in startup stage, when data successful
received, the timeout callback will check the residual bytes and insert
receiving datas into the framework during the transfer interval.

When current descriptor finished, the dma callback will also check the residual
bytes and filp the receiving data.

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:03:29 -07:00
Elen Song 08f738be88 serial: at91: add tx dma support
Request a slave dma channel for tx dma use. Tx dma will setup a single transfer,
when transfer complete, it will call atmel_complete_tx_dma to do finish stuff.

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:03:29 -07:00
Elen Song a930e52875 serial: at91: use function pointer to choose pdc or pio
use function pointer can avoid define atmel_use_pdc_tx/rx everywhere.
(*prepare_rx/tx)() is in setup transfer stage.
(*schedule_rx/tx)() is in tasklet schedule stage.
(*release_rx/tx)() is used when shutdown the transfer.

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 13:03:29 -07:00
Elen Song 64e22ebe49 serial: at91: correct definition from DMA to PDC
The DMA is available since at91sam9x5 socs, before that, we use PDC.

Signed-off-by: Elen Song <elen.song@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 12:52:40 -07:00
Darren Hart 0a09ae98ea serial: pch_uart: Remove __initdata annotation from dmi_table
The dmi_table is best accessed from the probe function, which is not
an __init function. Drop the __initdata annotation from the dmi_table
to avoid the section mismatch compiler warnings:

WARNING: drivers/tty/serial/pch_uart.o(.text+0x4871): Section mismatch
in reference from the function pch_uart_init_port() to the variable
.init.data:pch_uart_dmi_table

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 12:47:37 -07:00
Alexandru Juncu e06922aa83 TTY: synclink: replace bitmasks add operation with OR operation.
Found with coccinelle, manually fixed and verified.

Signed-off-by: Alexandru Juncu <alexj@rosedu.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 12:47:37 -07:00
Alexander Shiyan c29782965b serial: max310x: Fix dev_pm_ops
This patch fixes wrong dev_pm_ops which caused by commit:
serial: max310x: Driver rework.

  CC      drivers/tty/serial/max310x.o
  LD      drivers/video/fb.o
  CC      drivers/w1/slaves/w1_ds2433.o
  CC      drivers/w1/slaves/w1_ds2760.o
  CC      drivers/xen/balloon.o
  CC      drivers/video/backlight/adp8870_bl.o
drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.suspend') [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.resume') [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.freeze') [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.thaw') [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.poweroff') [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default]
drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.restore') [enabled by default]

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29 12:47:37 -07:00