Граф коммитов

12584 Коммитов

Автор SHA1 Сообщение Дата
Mark Brown e72ceb2aca Merge remote-tracking branches 'asoc/topic/bcm2835' and 'asoc/topic/cleanup' into asoc-next 2016-01-11 13:54:34 +00:00
Mark Brown 188bdf7268 Merge remote-tracking branches 'asoc/topic/adsp' and 'asoc/topic/amd' into asoc-next 2016-01-11 13:54:32 +00:00
Mark Brown 551e13a4b9 Merge remote-tracking branch 'asoc/topic/rt5645' into asoc-next 2016-01-11 13:54:32 +00:00
Mark Brown 51a545a343 Merge remote-tracking branch 'asoc/topic/pcm1792a' into asoc-next 2016-01-11 13:54:31 +00:00
Mark Brown a1916ff350 Merge remote-tracking branch 'asoc/topic/pcm-list' into asoc-next 2016-01-11 13:54:31 +00:00
Mark Brown 2dd49f8e6f Merge remote-tracking branch 'asoc/topic/pcm' into asoc-next 2016-01-11 13:54:30 +00:00
Mark Brown 804c0a9569 Merge remote-tracking branch 'asoc/topic/arizona' into asoc-next 2016-01-11 13:54:29 +00:00
Mark Brown fffe9b89d8 ASoC: Updates for v4.5
This is quite a busy release on the driver front with a lot of new
 drivers being added but comparatively quiet on the core side with only
 one big change going in and that a fairly straightforward refactoring.
 
  - Conversion of the array of DAI links to a list by Mengdong Lin,
    supporting dynamically adding and removing DAI links.
  - Some more fixes for the topology code, though it is still not final
    and ready for enabling in production.  We really need to get to the
    point where that can be done.
  - A pile of changes for Intel SkyLake drivers which hopefully deliver
    some useful initial functionality for systems with this chipset,
    though there is more work still to come.
  - New drivers for a number of Imagination Technologies IPs.
  - Lots of new features and cleanups for the Renesas drivers.
  - ANC support for WM5110.
  - New driver for Atmel class D speaker drivers.
  - New drivers for Cirrus CS47L24 and WM1831.
  - New driver for Dialog DA7128.
  - New drivers for Realtek RT5659 and RT56156.
  - New driver for Rockchip RK3036.
  - New driver for TI PC3168A
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Merge tag 'asoc-v4.5' into asoc-next

ASoC: Updates for v4.5

This is quite a busy release on the driver front with a lot of new
drivers being added but comparatively quiet on the core side with only
one big change going in and that a fairly straightforward refactoring.

 - Conversion of the array of DAI links to a list by Mengdong Lin,
   supporting dynamically adding and removing DAI links.
 - Some more fixes for the topology code, though it is still not final
   and ready for enabling in production.  We really need to get to the
   point where that can be done.
 - A pile of changes for Intel SkyLake drivers which hopefully deliver
   some useful initial functionality for systems with this chipset,
   though there is more work still to come.
 - New drivers for a number of Imagination Technologies IPs.
 - Lots of new features and cleanups for the Renesas drivers.
 - ANC support for WM5110.
 - New driver for Atmel class D speaker drivers.
 - New drivers for Cirrus CS47L24 and WM1831.
 - New driver for Dialog DA7128.
 - New drivers for Realtek RT5659 and RT56156.
 - New driver for Rockchip RK3036.
 - New driver for TI PC3168A

# gpg: Signature made Wed 23 Dec 2015 00:42:40 GMT using RSA key ID 5D5487D0
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>"
# gpg:                 aka "Mark Brown <broonie@debian.org>"
# gpg:                 aka "Mark Brown <broonie@kernel.org>"
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>"
# gpg:                 aka "Mark Brown <broonie@linaro.org>"
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 3F25 68AA C269 98F9 E813  A1C5 C3F4 36CA 30F5 D8EB
#      Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2  9FEA 24D6 8B72 5D54 87D0
2016-01-11 13:54:29 +00:00
Mark Brown 7b2f32cc81 Merge remote-tracking branch 'asoc/topic/intel' into asoc-next 2016-01-11 13:54:28 +00:00
Mark Brown b7f08d29c9 Merge remote-tracking branch 'asoc/fix/compress' into asoc-linus 2016-01-11 13:54:27 +00:00
Mark Brown c8980d2c17 Merge remote-tracking branch 'asoc/fix/arizona' into asoc-linus 2016-01-11 13:54:26 +00:00
Arnd Bergmann fe09dd8eb2 ASoC: hdac_hdmi: remove unused hdac_hdmi_query_pin_connlist
A recent rework removed the only user of the hdac_hdmi_query_pin_connlist
function, so we now get a warning when building the hdac_hdmi driver:

hdac_hdmi.c:313:12: warning: 'hdac_hdmi_query_pin_connlist' defined but not used [-Wunused-function]

This removes the function, which makes the file build cleanly again.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 15b914476b ("ASoC: hdac_hdmi: Use list to add pins and converters")
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-11 13:04:52 +00:00
Guenter Roeck 7cb1dc8109 ASoC: AMD: Add missing include file
arm:allmodconfig, s390:allmodconfig, sparc64:allmodconfig, and probably
other builds fail with

sound/soc/amd/acp-pcm-dma.c:83:2: error:
	implicit declaration of function ‘readl’
sound/soc/amd/acp-pcm-dma.c:88:2: error:
	implicit declaration of function ‘writel’

Include linux/io.h explicitly to fix the problem.

Fixes: 7c31335a03 ("ASoC: AMD: add AMD ASoC ACP 2.x DMA driver")
Cc: Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-11 13:03:58 +00:00
Mengdong Lin f2ed6b0764 ASoC: Make aux_dev more like a generic component
aux_dev is mainly used by the machine driver to specify analog devices,
which are registered as codecs. Making it more like a generic component
can help the machine driver to use it to specify any component with
topology info by name.

Details:
- Remove the stub 'rtd_aux' array from the soc card.
- Add a list 'aux_comp_list' to store the components of aux_devs.
  And add a list head 'list_aux' to struct snd_soc_component, for adding
  such components to the above list.
- Add a 'init' ops to a component for machine specific init.
  soc_bind_aux_dev() will set it to be aux_dev's init. And it will be
  called when probing the component.
- soc_bind_aux_dev() will also search components by name of an aux_dev,
  since it may not be a codec.
- Move probing of aux_devs before checking new DAI links brought by
  topology.
- Move removal of aux_devs later than removal of links. Because topology
  of aux components may register DAIs and the DAI drivers will go with
  removal of the aux components, we want soc_remove_link_dais() to remove
  the DAIs at first.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:46:55 +00:00
Martin Sperl 7905f08247 ASoC: bcm2835: cleanup includes by ordering them alphabetically
Cleanup of includes so that they are ordered alphabetically.

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:47 +00:00
Maruthi Srinivas Bayyavarapu c36d9b3f6d ASoC: AMD: Manage ACP 2.x SRAM banks power
ACP SRAM banks gets turned on when ACP is powered on.
Not all banks are used for playback/capture. So, power on
required banks during audio device open and power off during
audio device close.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:13 +00:00
Maruthi Srinivas Bayyavarapu 1927da9355 ASoC: AMD: add pm ops
genpd will power off/on ACP to manage runtime ACP PM. ACP runtime PM
hooks are added to get it deinitialized and initialized respectively,
after it is powered off/on.

When system goes to suspend when audio usecase is active, ACP will
be powered off through genpd. When it resumes, ACP needs to be
initialized and reconfigured.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:12 +00:00
Maruthi Srinivas Bayyavarapu 7c31335a03 ASoC: AMD: add AMD ASoC ACP 2.x DMA driver
ACP IP has internal DMA controller with multiple channels which
can be programmed in cyclic/non cyclic manner. ACP can generate
interrupt upon completion of DMA transfer, if required.
The PCM driver provides the platform DMA component to ALSA core.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Murali Krishna Vemuri <murali-krishna.vemuri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:12 +00:00
Maruthi Srinivas Bayyavarapu 2fa86e94a3 ASoC: AMD : add ACP 2.2 register headers
These are register headers for the ACP (Audio CoProcessor) v2.2

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:10 +00:00
Maciej S. Szmigiero f51e3d5372 ASoC: fsl_ssi: mark some registers precious
Mark some registers precious since their
reads have side effects (like clearing flags).

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:20:25 +00:00
Maciej S. Szmigiero 3f1c241f0f ASoC: fsl_ssi: mark SACNT register volatile
SACNT register should be marked volatile since
its WR and RD bits are cleared by SSI after
completing the relevant operation.
This unbreaks AC'97 register access.

Fixes: 05cf237972 ("ASoC: fsl_ssi: Add driver suspend and resume to support MEGA Fast")

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:20:07 +00:00
Jeeja KP 3637976b89 ASoC: Intel: Skylake: Add Resume capability in PCM info.
This patch adds pcm capability to support Resume.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:19:04 +00:00
Jeeja KP 920982c93c ASoC: Intel: Skylake: Reconfigure Link stream on suspend/resume
On suspend the link register are lost so we need to reconfigure
them in resume. This patch adds the reconfiguration of the link
register in trigger resume.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:19:03 +00:00
Jeeja KP 748a1d5a3f ASoC: Intel: Skylake: Add DMA resume position in Trigger resume/suspend
Use the DMA resume capability to resume the DMA position when
stream is suspended/resumed.

In suspend we save the position and when stream is resumed the stream needs
to be started from the position when the stream was suspended using the new
DMA resume capabilities

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:19:03 +00:00
Jeeja KP 1f4956fd96 ASoC: Intel: Skylake: enable interrupt as wake source in active suspend
In active suspend, any HDA interrupt should wake the system. When device
enters active suspend, we need to enable HDA controller interrupt as wake
source. Similarly disable HDA controller interrupt as wake source when
exiting active suspend.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:19:03 +00:00
Vinod Koul c2e20cd818 ASoC: Intel: Skylake: manage link power in active suspend
When device enters active suspend, we should turn off the links
as they are not in use. Similarly we need to bring back links
when we exit active suspend.

Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:19:02 +00:00
Dharageswari.R 721c3e36f7 ASoC: Intel: Skylake: Use CGCTL.MISCBDCGE for Phrase detection notification
Per HW recommendation, SW shall clear the CGCTL.MISCBDCGE and set
it back once data is transferred. So clear this when we get the
IPC and track using a driver flag, and set back on closure

Signed-off-by: Dharageswari.R <dharageswari.r@intel.com>
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:19:02 +00:00
Jayachandran B 0c8ba9d285 ASoC: Intel: Skylake: fix reset controller sequencing
MISCBDCGE is a new register for Misc Backbone clock gate control
which is useful to control while resetting the link and ensuring
controller is in required state so add API to control it

HW recommends that we reset with CGCTL.MISCBDCGE disabled, so add
that while doing init chip and reset sequence.

Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:19:01 +00:00
Maruthi Srinivas Bayyavarapu a242cac1d3 ASoC: dwc: add quirk to override COMP_PARAM_1 register
DWC for capture in ACP 2.x IP reports playback and capture capabilities
though it supports only capture. Added a quirk to override default value
to represent capture capability only.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:11:50 +00:00
Mengdong Lin 68003e6cf2 ASoC: Support registering a DAI dynamically
Define API snd_soc_register_dai() to add a DAI dynamically and
create the DAI widgets. Topology can use this API to register DAIs
when probing a component with topology info. These DAIs's playback
& capture widgets will be freed when the sound card is unregistered
and the DAIs will be freed when cleaning up the component.

And a dobj is embedded into the struct snd_soc_dai_driver. Topology
can use the dobj to find the DAI drivers created by it and free them
when the topology component is removed.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:06:19 +00:00
Mengdong Lin 5e4fb37211 ASoC: Define soc_add_dai() to add a DAI to a component
Define soc_add_dai() as a wrapper to add a single DAI to a component.
It can be reused to register a DAI dynamically by topology.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:06:19 +00:00
Michael Trimarchi 0471cd938e ASoC: pcm1792a: Rename pcm1792a to pcm179x
pcm1792a is compatible with pcm1795 and pcm1796 so it's
better to have them under the common name pcm179x

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:01:12 +00:00
Michael Trimarchi 823733b916 ASoC: pcm1792a: Rename internal data and function to pcm179x
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:01:01 +00:00
Michael Trimarchi 4ab936d1ac ASoC: rockchip: i2s: Add SNDRV_PCM_FMTBIT_S32_LE support
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 11:57:26 +00:00
Vinod Koul a106804588 ASoC: compress: Fix compress device direction check
The detection of direction for compress was only taking into account codec
capabilities and not CPU ones. Fix this by checking the CPU side capabilities
as well

Cc: <stable@vger.kernel.org>
Tested-by: Ashish Panwar <ashish.panwar@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-08 13:44:01 +00:00
Subhransu S. Prusty 15b914476b ASoC: hdac_hdmi: Use list to add pins and converters
Future platforms may have a different set of pins/converters.
So use lists to add pins and converters based on enumeration.

Also it may be required to connect any converter to any pin
dynamically as per different use cases (for example DP is
connected to pin 6 on skylake board). So this will help in
dynamically select and route.

Fix the dai map as well to use the pin/cvt from list. Not
enabling all dai maps for now.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-08 13:34:05 +00:00
Zidan Wang 2d4a32602b ASoC: wm8960: boost switch should be closed when using L/RINPUT1
L/RINPUT1 can line to Left/Right Boost Mixer through boost switch.
If boost switch is open, there will be no voice when using L/RINPUT1.

Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-08 13:07:29 +00:00
Zidan Wang defbf708ba ASoC: wm8960: add DAC mono mix kcontrol
In normal operation, the left and right channel digital audio data is
converted to analogue in two separate DACs. There is a mono-mix mode
where the two audio channels are mixed together digitally and then
converted to analogue using only one DAC, while the other DAC is
switched off. The mono-mix signal can be selected to appear on both
analogue output channels. The mono mix is automatically attenuated by
6dB to prevent clipping.

Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-08 13:07:25 +00:00
Subhransu S. Prusty 5307246015 ASoC: hdac_hdmi: Fix to warn instead of err for no connected nids
It is possible that some pin widget may return with no converter
connected. So don't throw error if none are found to be connected.
Instead print a warning and continue.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-08 13:02:31 +00:00
Takashi Iwai 9d9938854e Merge branch 'for-linus' into for-next
Conflicts:
	drivers/gpu/drm/i915/intel_display.c
	sound/soc/intel/skylake/skl.h
2016-01-06 21:14:35 +01:00
Charles Keepax 83a40ce993 ASoC: wm_adsp: Pull data through compressed read
Data is read in blocks of up to one fragment is size from the circular
buffer on the DSP and is re-packed to remove the padding byte that
exists in the DSP memory map.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-06 17:44:17 +00:00
Charles Keepax 565ace4641 ASoC: wm_adsp: Add a handler for the compressed IRQ
Here support is added for responding to DSP IRQs that are used to
indicate data being available on the DSP. The idea is that we check the
amount of data available upon receipt of an IRQ and on subsequent calls
to the pointer callback we recheck once less than one fragment is
available (to avoid excessive SPI traffic), if there is truely less than
one fragment available we ack the last IRQ and wait for a new one.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-06 17:44:17 +00:00
Charles Keepax 24338722cf ASoC: wm5110: Fix PGA clear when disabling DRE
We don't want to use a bypassed write in wm5110_clear_pga_volume,
we might disable the DRE whilst the CODEC is powered down. A
normal regmap_write will always go to the hardware (when not on
cache_only) even if the written value matches the cache. As using
a normal write will still achieve the desired behaviour of bring
the cache and hardware in sync, this patch updates the function
to use a normal write, which avoids issues when the CODEC is
powered down.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2016-01-06 17:39:31 +00:00
Dan Carpenter 8012c983dd ASoC: rsnd: precedence error in rsnd_ssiu_init()
The bitwise OR has higher precedence than ?: so the val2 was always set
to 0x2.

Fixes: b4c83b1715 ('ASoC: rsnd: add Multi channel support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-06 10:38:39 +00:00
Mark Brown bc42f363da Merge remote-tracking branch 'asoc/fix/intel' into asoc-linus 2016-01-05 23:07:33 +00:00
Mark Brown 84a5347b89 Merge remote-tracking branch 'asoc/fix/rt5645' into asoc-linus 2016-01-05 23:07:33 +00:00
Mark Brown 7a78d9439a Merge remote-tracking branch 'asoc/fix/arizona' into asoc-linus 2016-01-05 23:07:32 +00:00
Subhransu S. Prusty 541140d430 ASoC: hdac_hdmi: Fix to check num nodes correctly
commit 3c83ac2325 ("ASoC: hdac_hdmi: check error return") fixes
the static checker warning reported by Dan Carpenter:

	sound/soc/codecs/hdac_hdmi.c:416 hdac_hdmi_parse_and_map_nid()
	warn: unsigned 'hdac->num_nodes' is never less than zero.

But it doesn't fix the issue completely.

It's also a failure if no sub nodes found for an afg node. So modify
the return condition appropriately.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 19:18:34 +00:00
Adam Thomson f644eb62fe ASoC: da7218: Correct BCLK inversion for DSP DAI format mode
By default the device latches data on the falling edge of the
BCLK in DSP mode, whereas the expectation for normal BCLK is to
latch on the rising edge. This updates the driver to invert the
BCLK configuration for DSP mode, to align with expected behaviour.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 18:27:13 +00:00
Mark Brown ee1e4e3f0d Merge branch 'fix/intel' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel 2016-01-05 18:06:29 +00:00
Sanyog Kale 3f80978397 ASoC: pcm: allow delayed suspending request by users
If a device would like to use delayed suspending then PM
recommendation is to set ‘power.use_autosuspend’ flag. To allow
users to do so we need to change runtime calls in core to use
autosuspend counterparts.

For user who do not wish to use delayed suspend not setting the
device's ‘power.use_autosuspend’ flag will result in non-delayed
suspend even with these APIs which incidentally is also the default
behaviour, so only users will be impacted who opt in for this.

Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 16:27:53 +00:00
Adam Thomson 4acfa36be6 ASoC: da7219: Correct BCLK inversion for DSP DAI format mode
By default the device latches data on the falling edge of the
BCLK in DSP mode, whereas the expectation for normal BCLK is to
latch on the rising edge. This updates the driver to invert the
BCLK configuration for DSP mode, to align with expected behaviour.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 16:07:49 +00:00
Zidan Wang d44c6114da ASoC: fsl_asrc: sound is wrong after suspend/resume
The register ASRCFG is volatile, but some bits need to be recovered
after suspend/resume.

Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 13:19:11 +00:00
Jorge Fernandez Monteagudo 55fc205600 ASoC: Intel: Atom: Add support for HP ElitePad 1000 G2
The BIOS for the HP ElitePad 1000 G2 uses an unexpected HID,
(INTCCFFD), add it to the white list of knowns HIDs.

Signed-off-by: Jorge Fernandez Monteagudo <jorgefm@cirsa.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 13:06:22 +00:00
Pierre-Louis Bossart 7762ef42d8 ASoC: Intel: Atom: add support for RT5642
The machine driver is not loaded when the BIOS uses the 10EC5642
_HID. Add it to the white list of known _HIDs, codec_name is
already taken care of by previous commit

Tested on Asus T100TAF.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 13:06:22 +00:00
Pierre-Louis Bossart caf94ed862 ASoC: Intel: bytcr_rt5640: fixup DAI codec_name with HID
Codec name is hard-coded in machine driver, pass information
from actual ACPI HID to help support BIOS variations

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 13:06:22 +00:00
Pierre-Louis Bossart 2bd5bd15a5 ASoC: Intel: add bytct-rt5651 machine driver
based on bytcr-rt5640 with changes only on codec side
Quirk logic is kept as placeholder.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 12:43:54 +00:00
Pierre-Louis Bossart dc901a3541 ASoC: Intel: fix ACPI probe regression with Atom DPCM driver
The commit 95f0980148
"ASoC: Intel: Move apci find machine routines"

introduced a regression in ACPI probe of the DPCM driver.
Fix by conditionally compiling sst-acpi when the DPCM driver
is not selected

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 12:43:54 +00:00
Pierre-Louis Bossart 0ec66e2d74 ASoC: Intel: bytcr-rt5640: enable ASRC
Sound is noisy when using BCLK as reference, enable ASRC in rt5640
codec

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 12:37:11 +00:00
Mark Brown 8937672cd1 Merge branch 'topic/rt5640' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel 2016-01-05 12:37:06 +00:00
Jack Yu bee3e02024 ASoC: rt5640: add ASRC support
Signed-off-by: Jack Yu <jack.yu@realtek.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 12:32:22 +00:00
Vinod Koul d8018361b5 ASoC: Intel: Skylake: Fix the memory leak
This provide the fix for firmware memory by freeing the pointer in driver
remove where it is safe to do so

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 11:48:51 +00:00
Vinod Koul fb203adc28 ASoC: Intel: Skylake: Revert previous broken fix memory leak fix
This reverts commit 87b5ed8ecb ("ASoC: Intel:
Skylake: fix memory leak") as it causes regression on Skylake devices

The SKL drivers can be deferred probe. The topology file based widgets can
have references to topology file so this can't be freed until card is fully
created, so revert this patch for now

[   66.682767] BUG: unable to handle kernel paging request at ffffc900001363fc
[   66.690735] IP: [<ffffffff806c94dd>] strnlen+0xd/0x40
[   66.696509] PGD 16e035067 PUD 16e036067 PMD 16e038067 PTE 0
[   66.702925] Oops: 0000 [#1] PREEMPT SMP
[   66.768390] CPU: 3 PID: 57 Comm: kworker/u16:3 Tainted: G O 4.4.0-rc7-skl #62
[   66.778869] Hardware name: Intel Corporation Skylake Client platform
[   66.793201] Workqueue: deferwq deferred_probe_work_func
[   66.799173] task: ffff88008b700f40 ti: ffff88008b704000 task.ti: ffff88008b704000
[   66.807692] RIP: 0010:[<ffffffff806c94dd>]  [<ffffffff806c94dd>] strnlen+0xd/0x40
[   66.816243] RSP: 0018:ffff88008b707878  EFLAGS: 00010286
[   66.822293] RAX: ffffffff80e60a82 RBX: 000000000000000e RCX: fffffffffffffffe
[   66.830406] RDX: ffffc900001363fc RSI: ffffffffffffffff RDI: ffffc900001363fc
[   66.838520] RBP: ffff88008b707878 R08: 000000000000ffff R09: 000000000000ffff
[   66.846649] R10: 0000000000000001 R11: ffffffffa01c6368 R12: ffffc900001363fc
[   66.854765] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000
[   66.862910] FS:  0000000000000000(0000) GS:ffff88016ecc0000(0000) knlGS:0000000000000000
[   66.872150] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.878696] CR2: ffffc900001363fc CR3: 0000000002c09000 CR4: 00000000003406e0
[   66.886820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.894938] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.903052] Stack:
[   66.905346]  ffff88008b7078b0 ffffffff806cb1db 000000000000000e 0000000000000000
[   66.913854]  ffff88008b707928 ffffffffa00d1050 ffffffffa00d104e ffff88008b707918
[   66.922353]  ffffffff806ccbd6 ffff88008b707948 0000000000000046 ffff88008b707940
[   66.930855] Call Trace:
[   66.933646]  [<ffffffff806cb1db>] string.isra.4+0x3b/0xd0
[   66.939793]  [<ffffffff806ccbd6>] vsnprintf+0x116/0x540
[   66.945742]  [<ffffffff806d02f0>] kvasprintf+0x40/0x80
[   66.951591]  [<ffffffff806d0370>] kasprintf+0x40/0x50
[   66.957359]  [<ffffffffa00c085f>] dapm_create_or_share_kcontrol+0x1cf/0x300 [snd_soc_core]
[   66.966771]  [<ffffffff8057dd1e>] ? __kmalloc+0x16e/0x2a0
[   66.972931]  [<ffffffffa00c0dab>] snd_soc_dapm_new_widgets+0x41b/0x4b0 [snd_soc_core]
[   66.981857]  [<ffffffffa00be8c0>] ? snd_soc_dapm_add_routes+0xb0/0xd0 [snd_soc_core]
[   67.007828]  [<ffffffffa00b92ed>] soc_probe_component+0x23d/0x360 [snd_soc_core]
[   67.016244]  [<ffffffff80b14e69>] ? mutex_unlock+0x9/0x10
[   67.022405]  [<ffffffffa00ba02f>] snd_soc_instantiate_card+0x47f/0xd10 [snd_soc_core]
[   67.031329]  [<ffffffff8049eeb2>] ? debug_mutex_init+0x32/0x40
[   67.037973]  [<ffffffffa00baa92>] snd_soc_register_card+0x1d2/0x2b0 [snd_soc_core]
[   67.046619]  [<ffffffffa00c8b54>] devm_snd_soc_register_card+0x44/0x80 [snd_soc_core]
[   67.055539]  [<ffffffffa01c303b>] skylake_audio_probe+0x1b/0x20 [snd_soc_skl_rt286]
[   67.064292]  [<ffffffff808aa887>] platform_drv_probe+0x37/0x90

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 11:48:39 +00:00
Bard Liao 15b0f4d4b1 ASoC: rt5645: improve IRQ reaction time for HS button
IRQ reaction time is not immediate when headset putton is pressed.
This patch shortens the reaction time.

Signed-off-by: John Lin <john.lin@realtek.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05 11:33:59 +00:00
Mathias Krause e297376937 ASoC: rt5645: Constify ACPI device ids
Constify the ACPI device ID array, no need to have it writable at
runtime. Also drop the unused RT5645_INIT_REG_LEN define.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Bard Liao <bardliao@realtek.com>
Cc: Oder Chiou <oder_chiou@realtek.com>
Cc: John Lin <john.lin@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-04 18:23:42 +00:00
Geliang Tang 51b2c4258f ASoC: hdac_hdmi: use dev_to_hdac_dev and to_ehdac_device
Use dev_to_hdac_dev() and to_ehdac_device() instead of open-coding.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-04 11:21:47 +00:00
Charles Keepax 26eb5a9a6a ASoC: arizona: Exit startup early if no runtime
commit 9b8ef9f6b3 ("ASoC: dapm: Add startup & shutdown for dai_links")

Added support for calling startup on CODEC to CODEC links, however this
is called with a NULL runtime pointer. There isn't really a sensible way
to pass a valid runtime pointer to a CODEC to CODEC link at the moment,
so we need to make the startup function safe for NULL runtimes.

This patch returns from the Arizona startup function early if there is no
runtime, this is perfectly safe as all the startup function does is set
the PCM constraints for user-space which arn't relevant to a CODEC to
CODEC link anyway.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-30 17:26:08 +00:00
Andrzej Hajda e5d9cfc6f5 ASoC: rsnd: fix usrcnt decrementing bug
Field usrcnt is unsigned so it cannot be lesser than zero.
The patch fixes the check, moves it to the beginning of the function
and changes return value to -EIO in case of usercnt error.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-30 17:13:20 +00:00
Charles Keepax e116615b80 ASoC: wm5110: Use helper function to lock the DAPM mutex
A couple of call sites were missed when the snd_soc_dapm_mutex_lock
function was added this patch fixes those up.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-30 16:48:42 +00:00
Bard Liao ca8457bb02 ASoC: rt5645: add sys clk detection
Add system clock detection to prevent output DC from SPO.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-30 16:35:07 +00:00
Bard Liao 7ff6319e7d ASoC: rt5645: use polling to support HS button
The IRQ pin will keep high when the headset button is pressed. And
keep low when the headset button is released. So, we need irq trigger
at both edges. However, some platform can't support it. Therefore,
we polling the register to report the button release event once a
button presse event is received.
To support the headset button detection function for those can't
support both edges trigger platforms, we also need to invert the
polarity of jack detection irq since we need to keep the IRQ pin
low in normal case.

Signed-off-by: John Lin <john.lin@realtek.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-30 16:34:54 +00:00
Geliang Tang bb18f0976e ASoC: twl6040, fsl: use to_platform_device
Use to_platform_device() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-24 19:42:42 +00:00
Zidan Wang 4a5893cf67 ASoC: wm8960: add kcontrol to select ADC data output
add kcontrol to select ADC data output.

Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-24 19:19:02 +00:00
Adam Thomson abd7c894fc ASoC: da7219: Add regmap patch to support old silicon
Initial silicon did not have master bias enabled by default, unlike
later HW, so use regmap patch to align with newer defaults.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-24 19:17:45 +00:00
Nikesh Oswal e73694d871 ASoC: arizona: Fix bclk for sample rates that are multiple of 4kHz
For a sample rate of 12kHz the bclk was taken from the 44.1kHz table as
we test for a multiple of 8kHz. This patch fixes this issue by testing
for multiples of 4kHz instead.

Signed-off-by: Nikesh Oswal <Nikesh.Oswal@cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-12-24 19:12:48 +00:00
Bard Liao 3ae08dc0fc ASoC: rt5651: add ACPI and OF support
Add required tables and the binding document for ACPI and OF matching.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-23 12:21:14 +00:00
Takashi Iwai f80e39e022 ASoC: Updates for v4.5
This is quite a busy release on the driver front with a lot of new
 drivers being added but comparatively quiet on the core side with only
 one big change going in and that a fairly straightforward refactoring.
 
  - Conversion of the array of DAI links to a list by Mengdong Lin,
    supporting dynamically adding and removing DAI links.
  - Some more fixes for the topology code, though it is still not final
    and ready for enabling in production.  We really need to get to the
    point where that can be done.
  - A pile of changes for Intel SkyLake drivers which hopefully deliver
    some useful initial functionality for systems with this chipset,
    though there is more work still to come.
  - New drivers for a number of Imagination Technologies IPs.
  - Lots of new features and cleanups for the Renesas drivers.
  - ANC support for WM5110.
  - New driver for Atmel class D speaker drivers.
  - New drivers for Cirrus CS47L24 and WM1831.
  - New driver for Dialog DA7128.
  - New drivers for Realtek RT5659 and RT56156.
  - New driver for Rockchip RK3036.
  - New driver for TI PC3168A
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Merge tag 'asoc-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v4.5

This is quite a busy release on the driver front with a lot of new
drivers being added but comparatively quiet on the core side with only
one big change going in and that a fairly straightforward refactoring.

 - Conversion of the array of DAI links to a list by Mengdong Lin,
   supporting dynamically adding and removing DAI links.
 - Some more fixes for the topology code, though it is still not final
   and ready for enabling in production.  We really need to get to the
   point where that can be done.
 - A pile of changes for Intel SkyLake drivers which hopefully deliver
   some useful initial functionality for systems with this chipset,
   though there is more work still to come.
 - New drivers for a number of Imagination Technologies IPs.
 - Lots of new features and cleanups for the Renesas drivers.
 - ANC support for WM5110.
 - New driver for Atmel class D speaker drivers.
 - New drivers for Cirrus CS47L24 and WM1831.
 - New driver for Dialog DA7128.
 - New drivers for Realtek RT5659 and RT56156.
 - New driver for Rockchip RK3036.
 - New driver for TI PC3168A
2015-12-23 08:33:52 +01:00
Takashi Iwai 59c8231089 Merge branch 'for-linus' into for-next
Conflicts:
	drivers/gpu/drm/i915/intel_pm.c
2015-12-23 08:33:34 +01:00
Mark Brown 822ad70a2f Merge remote-tracking branch 'asoc/topic/rt5677' into asoc-next 2015-12-23 00:38:14 +00:00
Bard Liao d0d1eedd5a ASoC: rt5677: set PLL_CTRL2 non-volatile
There is a status bit on RT5677_PLL1_CTRL2 and RT5677_PLL2_CTRL2.
That's why those registers are set volatile. However, the status
bit is currently not used by codec driver. So, it should be no
problem if we set them non-volatile.
The purpose of setting them non-volatile is to restore the setting
after a syspend/resume cycle.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-23 00:36:40 +00:00
Mark Brown fec89f9465 Merge remote-tracking branches 'asoc/topic/wm8962', 'asoc/topic/wm8974' and 'asoc/topic/wm9713' into asoc-next 2015-12-23 00:23:54 +00:00
Mark Brown 2d850b1e6c Merge remote-tracking branches 'asoc/topic/tegra', 'asoc/topic/topology', 'asoc/topic/wm8903' and 'asoc/topic/wm8904' into asoc-next 2015-12-23 00:23:52 +00:00
Mark Brown 14418aa7d4 Merge remote-tracking branches 'asoc/topic/samsung', 'asoc/topic/sh', 'asoc/topic/ssm2518' and 'asoc/topic/sti' into asoc-next 2015-12-23 00:23:51 +00:00
Mark Brown d1587e345c Merge remote-tracking branches 'asoc/topic/rt286', 'asoc/topic/rt5616' and 'asoc/topic/rt5677' into asoc-next 2015-12-23 00:23:49 +00:00
Mark Brown 81b6863cae Merge remote-tracking branches 'asoc/topic/pxa', 'asoc/topic/qcom', 'asoc/topic/rcar', 'asoc/topic/rk3036' and 'asoc/topic/rockchip' into asoc-next 2015-12-23 00:23:46 +00:00
Mark Brown 9451a46928 Merge remote-tracking branches 'asoc/topic/kcontrol', 'asoc/topic/max98357a' and 'asoc/topic/mtk' into asoc-next 2015-12-23 00:23:44 +00:00
Mark Brown b9546d09b1 Merge remote-tracking branches 'asoc/topic/fsl-spdif', 'asoc/topic/img' and 'asoc/topic/intel' into asoc-next 2015-12-23 00:23:43 +00:00
Mark Brown 9764350d71 Merge remote-tracking branches 'asoc/topic/dpcm', 'asoc/topic/dwc', 'asoc/topic/fsl', 'asoc/topic/fsl-asrc' and 'asoc/topic/fsl-esai' into asoc-next 2015-12-23 00:23:40 +00:00
Mark Brown 64dc98d374 Merge remote-tracking branches 'asoc/topic/da7219', 'asoc/topic/dai-link' and 'asoc/topic/doc' into asoc-next 2015-12-23 00:23:39 +00:00
Mark Brown 38cfbc12c8 Merge remote-tracking branches 'asoc/topic/atmel-classd', 'asoc/topic/const' and 'asoc/topic/da7218' into asoc-next 2015-12-23 00:23:37 +00:00
Mark Brown 8ebdab65fe Merge remote-tracking branches 'asoc/topic/ac97', 'asoc/topic/adsp', 'asoc/topic/ak4613' and 'asoc/topic/atmel' into asoc-next 2015-12-23 00:23:35 +00:00
Mark Brown 1ab4f8519a Merge remote-tracking branch 'asoc/topic/sunxi' into asoc-next 2015-12-23 00:23:34 +00:00
Mark Brown 10330401d8 Merge remote-tracking branch 'asoc/topic/rt5645' into asoc-next 2015-12-23 00:23:33 +00:00
Mark Brown 89c172e2aa Merge remote-tracking branch 'asoc/topic/pcm3168a' into asoc-next 2015-12-23 00:23:33 +00:00
Mark Brown a93202fa7b Merge remote-tracking branch 'asoc/topic/pcm-list' into asoc-next 2015-12-23 00:23:32 +00:00
Mark Brown 3b88210da3 Merge remote-tracking branch 'asoc/topic/dapm' into asoc-next 2015-12-23 00:23:32 +00:00
Mark Brown 6b8bd8b2d7 Merge remote-tracking branch 'asoc/topic/arizona' into asoc-next 2015-12-23 00:23:31 +00:00
Mark Brown 3dd5fc0eeb Merge remote-tracking branches 'asoc/fix/davinci', 'asoc/fix/es8328', 'asoc/fix/fsl-sai', 'asoc/fix/rockchip', 'asoc/fix/sgtl5000' and 'asoc/fix/wm8974' into asoc-linus 2015-12-23 00:23:27 +00:00
Linus Walleij 34015f5e56 ASoC: ac97: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-23 00:23:01 +00:00
Linus Walleij b70381c35f ASoC: wm8903: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-23 00:22:47 +00:00