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2012-03-29Merge tag 'asoc-3.4' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: A few more updates for 3.4 The cleanup of the dmaengine parameter messup and a tweak to some callibration values for WM1811.
2012-03-26ASoC: dmaengine_pcm: use dmaengine cyclic wrapperVinod Koul
commit 4a163c82 added extra parameter to device_prep_dma_cyclic this is not required if we use the wrapper over cyclic API. This is split from Alexedre's patch Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-22ASoC: Add extra parameter to device_prep_dma_cyclicFabio Estevam
Since commit 185ecb5 (dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic) prep_dma_cyclic() got an extra context parameter. Add this new parameter in order to fix the following build error (mxs_defconfig and imx_v4_v5_defconfig): sound/soc/soc-dmaengine-pcm.c:149:3: error: too few arguments to function 'chan->device->device_prep_dma_cyclic' Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-21ASoC: wm8994: Update WM8994 DCS calibrationMark Brown
Based on latest production information. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-03-21Merge tag 'asoc-3.4' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus Last minute ASoC updates for 3.4 There's a couple of small features here that were added late on but have been in -next in my tree and some bug fixes. The wm_hubs stuff is actually bug fixes - the stuff that's currently in 3.4 is a half way house between the two solutions that the latest change allows the machine to select between.
2012-03-19ASoC: wm8994: Provide VMID mode control and fix default sequenceMark Brown
The optimal management of VMID depends on a number of factors which vary dynamically at runtime, for example the connection to a system docking station. In some circumstances it is desirable to keep VMID enabled all the time, in others it is desirable to aggressively power it up and down. Provide a callback allowing machine driver to configure either the normal power up/down mode (WM8994_VMID_MODE_NORMAL) or to maintain VMID even when idle (WM8994_VMID_MODE_FORCE). This callback, wm8994_vmid_mode(), should be called with the CODEC lock. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-19ASoC: wm8994: Add missing break in resumeMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-19ASoC: wm_hubs: Don't actively manage LINEOUT_VMID_BUFMark Brown
It can just be enabled all the time with no impact. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-19ASoC: pxa-ssp: atomically set stream active masksDaniel Mack
PXA's SSP engine fails to take its current channel phase into account when enabling a stream while the engine is already running. This results in randomly swapped left/right channels on either the record or the playback side, depending on which one was enabled first. The following patch fixes this by factoring out the bit field modifications in question to a separate function that pauses the engine temporarily, modifies the bits and kicks it off again afterwards. Appearantly, a transition of SSCR0_SSE syncs both directions properly. The patch has been rolled out to quite a number of devices over the last weeks and seems to fix the issue reliably. Signed-off-by: Daniel Mack <zonque@gmail.com> Reported-and-tested-by: Sven Neumann <s.neumann@raumfeld.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-03-18Merge branch 'topic/asoc' into for-linusTakashi Iwai
2012-03-17ASoC: fsl: p1022ds: tell the WM8776 codec driver that it's the masterTimur Tabi
The WM8776 codec driver requires the machine driver to set one of the SND_SOC_DAIFMT_CBx_xxx values. The P1022DS machine driver should be setting SND_SOC_DAIFMT_CBM_CFM, but since that value was zero, no one noticed. Commit 75d9ac46 ("ASoC: Allow DAI formats to be specified in the dai_link"), however, changed the value of SND_SOC_DAIFMT_CBM_CFM from zero to a non-zero value, which means that it now needs to be specifically set by the machine driver. We also set SND_SOC_DAIFMT_NB_NF, for the same reason. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-03-16ASoC: Samsung: Added to support mono recordingSangsu Park
The dma size will be changed by requested number of channel(mono/stereo) from platform. For mono recording, channels_min value should be 1. Signed-off-by: Sangsu Park <sangsu4u.park@samsung.com> Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-15ASoC: core: Fix obscure leak of runtime arrayMark Brown
We're currently not freeing card->rtd in cases where the card is unregistered before being instantiated - convert it to devm_kzalloc() to make sure that happens. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-03-15Merge tag 'asoc-3.4' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into topic/asoc Linus decided to go for another week so here's a few more updates - a mixed bag here, a few minor diagnostic tweaks, some driver enhancements and the dmaengine conversion for ep93xx drivers which was tested a while ago and just waiting for a signoff.
2012-03-14ASoC: wm8996: Add 44.1kHz supportMark Brown
The WM8996 specification has been updated to specify 44.1kHz as a supported sample rate. Update the driver to accept this configuration. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13ASoC: mx27vis-aic32x4: Convert it to platform driverFabio Estevam
Convert mx27vis-aic32x4 to platform driver. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Tested-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12ASoC: ep93xx-pcm: Use dmaengine PCM helper functionsLars-Peter Clausen
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Tested-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12ASoC: dmaengine_pcm: Reset pointer position when starting a streamMika Westerberg
Otherwise a wrong position will be reported after restarting a stream and the first few samples might be skipped. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12ASoC: wm8994: Prevent ABBA deadlock with CODEC and accdet mutexesMark Brown
Currently we can the accdet mutex from within DAPM when updating the device state which means we take accdet then the CODEC mutex but we also do the locking the other way around when responding to the jackdet IRQ. Move all the jackdet use of the CODEC mutex out of the accdet lock to avoid this. Since all the DAPM interactions depend only on a single threaded IRQ this is still serialised. The locking improvements in 3.5 allow a better solution there. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12ASoC: OMAP: Build config cleanup for McBSPPeter Ujfalusi
The McBSP driver stack has been moved, and rewritten resulting a single driver - selected by CONFIG_SND_OMAP_SOC_MCBSP. There is no longer need to have CONFIG_OMAP_MCBSP anymore. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonoie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: fix snd_pcm_hw_rule_add argumentsGrazvydas Ignotas
We are setting SNDRV_PCM_HW_PARAM_BUFFER_SIZE based on SNDRV_PCM_HW_PARAM_CHANNELS, not vice versa. This bug didn't have much impact because the rules are evaluated multiple times by the core, and intended value got set eventually. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: Correct clock muxing for CLKR/FSR signalsPeter Ujfalusi
Remove the no longer valid check for McBSP1 regarding to signal mux selection (on OMAP4 McBSP4 has 6 pin setup). Only clear the srgr2, pcr0 register configuration if the requested clock configuration will actually going to touch it. In this way we can avoid issues if the CLKR/FSR mux has been configured after the clock selection. We are going to check for the valid McBSP port in the omap_mcbsp_6pin_src_mux() function based on the validity of the mux_signal callback (which is only valid for ports having 6 pin setup). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: Single function CLKR/FSR source mux configurationPeter Ujfalusi
Use single function for the CLKR/FSR mux configuration. OMAP2/3 has 6 pin configuration on McBSP1 instance, while on OMAP4 McBSP4 instance have the 6 pin configuration so the omap2_mcbsp1_mux_* is not correct name for all support OMAP versions Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ARM/ASoC: OMAP McBSP: Move remainig defines from arch to ASoC headerPeter Ujfalusi
Clock signal muxing, and functional clock related defines are only needed in ASoC drivers. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Acked-by: Mark Brown <broonoie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap McBSP: Clear rx_irq at probe time for OMAP4Peter Ujfalusi
On OMAP4 we have one interrupt line per McBSP port. At probe time tx, and rx irq value will be -ENXIO, and only the tx irq will get corrected. In omap_mcbsp_request if the rx_irq is not 0 we proceed, and try to request the interrupt, which will fail on OMAP4 (rx_irq == -6). To avoid this error, clear the rx_irq at probe time on OMAP4. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: When closing the port select PRCM source for CLKS signalPeter Ujfalusi
If external source for the CLKS signal selection kept after the port is no longer in use the system might refuse to go suspend. There is also a chance that the external clock is not running when next time the McBSP port is started which can result errors when we try to access McBSP registers. Reset the CLKS source back to PRCM source unconditionally. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: Configure wakeup in later phasePeter Ujfalusi
Configure the WAKEUPEN register at the same time we configure the rest of the McBSP registers. In case of OMAP3+, if the sysclock has been reconfigured we are going to disable McBSP for the duration of the clock change, which will reset the McBSP registers. The WAKEUPEN register need to be configured later, so the changes will be effective during runtime. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicrocom> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap: mcbsp: Remove redundant checks for the st_data pointerPeter Ujfalusi
The parent functions of omap_st_start/stop also checks the validity of the st_data pointer so we do not need to do it again inside of omap_st_start/stop Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap: mcbsp: Use uniform st_data pointer initializationPeter Ujfalusi
In this way we can save few lines, and have uniform way of initializing the st_data in all functions. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: Simplify DMA configurationPeter Ujfalusi
Configure the DMA request line, port address, and stream name at probe time instead of every time we start a stream. These settings are static in the system. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: Merge the omap_mcbsp_data into omap_mcbsp structurePeter Ujfalusi
Since the drivers has been merged, merge the two structures together. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: Cleanup of module probe/remove codePeter Ujfalusi
Use devm_* where it is possible to save on cleanup path. Start merging the two mcbsp file content. Move pm_runtime_enable/disable calls to ASoC probe, remove from module probe/remove time. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: OMAP McBSP: Remove redundant accessorsPeter Ujfalusi
We no longer need accessor functions for max_tx/rx_threshold, dma_op_mode or for the FIFO size. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: OMAP: mcbsp.h: Clean up bit definitionsPeter Ujfalusi
Use BIT() for bit position, correct field definition by adding mask to them, and also adding the missing spaces around '<<' Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: omap-mcbsp: Create a single driver for McBSPPeter Ujfalusi
The OMAP McBSP driver stack used to contain two different drivers. One of them was used as kind low-level access to the IP, while the other driver was the ASoC DAI driver. There were global, shared structures, in different places, the McBSP instances are reffered with id numbers (sometimes 0 based, in other cases 1 based id numbers). Create one single driver for OMAP McBSP with name: omap-mcbsp. Convert the old omap-mcbsp driver initially to be a library for the omap-mcbsp DAI driver. With this change we can get rid of all global variables, structures. Further cleanup is coming... Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: OMAP: McBSP: Consolidate plat/mcbsp.h contentPeter Ujfalusi
Move most of the content of the plat/mcbsp.h header file under sound/soc/omap/ to help further cleanups. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12OMAP: mcbsp: Move core driver under sound/soc/omapPeter Ujfalusi
In order to consolidate the McBSP driver move it out from arch/arm/plat-omap directory under sound/soc/omap/ Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
2012-03-12ASoC: Revert widget I/O locking for 3.4Mark Brown
The widget locking depends on some of the other locking changes which are queued up for 3.5 not 3.4 so revert the locking changes and reapply them in 3.5. This reverts commit 66bf93212f19548f5ed221356b2d70189cc18254 and 96acc357bedad69fbc94d1b923a960af5a411c6f. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-03-09ASoC: da7210: Remove extra registers from defaults listAshish Chavan
This patch removes following registers from reg map defaults, - Registers which are currently not used by driver - Non existing registers - Volatile registers Signed-off-by: Ashish Chavan <ashish.chavan@kpitcummins.com> Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-09ASoC: fsl: check property 'compatible' for the machine nameShawn Guo
Check /compatible rather than /model to determine the machine name. The p1022ds older device trees get a different /model from the new ones, while /compatible is consistent there, so checking /compatible will save the bother of detecting older p1022ds device trees. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-08ASoC: wm8996: Remove separate output stage enable stepMark Brown
Marginally improve performance during startup. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-08ASoC: wm8996: Remove some volatile regisers from the defaults tableMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-08ASoC: core: missing set_fmt should not be complaintShawn Guo
Not having a DAI link set_fmt operation is perfectly normal and should not be complaint. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-08ASoC: da7210: Update for using I2C regmapAshish Chavan
Current DA7210 driver has I2C support using older register cache methods. This patch updates it for latest regmap framework. This has been tested on DA7210 EVB with Samsung SMDK6410 board. Signed-off-by: Ashish Chavan <ashish.chavan@kpitcummins.com> Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-08ASoC: add more sample rate for pxa-sspQiao Zhou
add more sample rate for pxa-ssp, which are supported, such as 32KHz, 64KHz. Signed-off-by: Qiao Zhou <zhouqiao@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-07ASoC: imx: imx-audmux: Fix section mismatchFabio Estevam
Fix the following section mismatch warning: WARNING: vmlinux.o(.data+0x35be8): Section mismatch in reference from the variable imx_audmux_driver to the function .init.text:imx_audmux_probe() The variable imx_audmux_driver references the function __init imx_audmux_probe() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-07ASoC: dapm: Only lock CODEC for I/O if not using regmapMark Brown
If we do use regmap then regmap will take care of things for us. We actually already have this check at a higher level for the current users but this makes sure we do the right thing in the future too if we need to. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
2012-03-06ASoC: DAPM: Make sure DAPM widget IO ops hold the component mutexLiam Girdwood
Currently not all DAPM widget IO ops are holding their component mutex (codec or platform). Make sure this is now held for DAPM widget IO operations. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-06ASoC: core: Add platform component mutexLiam Girdwood
Add mutex support for platform IO operations. e.g. can be used for platform DAPM widget IO ops. Signed-off-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-06ASoC: tegra: Remove unused variableStephen Warren
Fixes the following warning: sound/soc/tegra/tegra_alc5632.c: In function 'tegra_alc5632_asoc_init': sound/soc/tegra/tegra_alc5632.c:118:6: warning: unused variable 'ret' [-Wunused-variable] Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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