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2013-12-19Merge remote-tracking branch 'asoc/fix/core' into asoc-linusMark Brown
2013-12-19ASoC: simple-card: Use devm_snd_soc_register_card()Xiubo Li
Makes the code slightly shorter. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-19ASoC: wm5110: Add support for ASRC RATE 1Charles Keepax
Add support for configuring the sample rate on the SYSCLK side of the ASRC. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-19ASoC: wm5110: Add FSH for ISRCsCharles Keepax
Currently, the driver only supports configuration of the lower sample rate (FSL) on the ISRCs. With the higher rate being fixed a SYSCLK, this patch adds support for configuring the higher sample rate (FSH). Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-19ASoC: wm5110: Expose switch controls for DRECharles Keepax
Certain use-cases require the DRE to be disabled so expose controls for the enables. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ASoC: SPEAr: remove custom DMA alloc compat functionStephen Warren
spear_pcm_request_chan() is almost identical to dmaengine_pcm_compat_request_channel(), with the exception that the latter: a) Assumes that the DAI DMA data is a struct snd_dmaengine_dai_dma_data pointer rather than some custom type. b) dma_data->filter_data rather than dma_data should be passed to snd_dmaengine_pcm_request_channel() as the filter data. Make minor changes to the SPEAr DAI drivers so that those two conditions are met. This allows removal of the custom .compat_request_channel(). Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ASoC: SPEAr: get rid of spear-pcm-audio struct deviceStephen Warren
Modify the SPEAr PCM driver so that it's a utility library that can be registered on each DAI, rather than a separate struct device. This is more in line with how many recent DT-converted platforms operate, and avoids the need for yet another struct device. This is also required as a pre-cursor to removing spear_pcm_request_chan(). Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ASoC: ep93xx: remove custom DMA alloc compat functionStephen Warren
ep93xx_compat_request_channel() is almost identical to dmaengine_pcm_compat_request_channel(), with the exception that the latter: a) Assumes that the DAI DMA data is a struct snd_dmaengine_dai_dma_data pointer rather than some custom type. b) dma_data->filter_data rather than dma_data should be passed to snd_dmaengine_pcm_request_channel() as the filter data. Make minor changes to the ep93xx DAI drivers so that those two conditions are met. This allows removal of the custom .compat_request_channel(). Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ASoC: ep93xx: get rid of ep93xx-pcm-audio struct deviceStephen Warren
Modify the ep93xx PCM driver so that it's a utility library that can be registered on each DAI, rather than a separate struct device. This is more in line with how many recent DT-converted platforms operate, and avoids the need for yet another struct device. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ASoC: sgtl5000: clean up sgtl5000_enable_regulators()Shawn Guo
Function sgtl5000_enable_regulators() is somehow odd in handling the optional external VDDD supply. The driver can only enable this supply on SGTL5000 chip before revision 0x11, and of course when this external VDDD is present. It currently does something like below. 1. Check if regulator_bulk_get() on VDDA, VDDIO and VDDD will fail. If it fails, VDDD must be absent and it falls on internal LDO by calling sgtl5000_replace_vddd_with_ldo(). Otherwise, VDDD is used. And in either case, regulator_bulk_enable() will be called to enable 3 supplies. 2. In case that SGTL5000 revision is later than 0x11, even if external VDDD is present, it has to roll back the 'enable' and 'get' calls with regulator_bulk_disable() and regulator_bulk_free(), and starts over again by calling sgtl5000_replace_vddd_with_ldo() and regulator_bulk_enable(). Such back and forth calls sequence is complicated and unnecessary. Also, since commit 4ddfebd (regulator: core: Provide a dummy regulator with full constraints), regulator_bulk_get() will always succeeds because of the dummy regulator. Thus the VDDD detection is broken. The patch changes the flow to something like the following, which should be more reasonable and clear, and also fix the VDDD detection breakage. 1. Check if we're running a chip before revision 0x11, on which an external VDDD can possibly be an option. 2. If it is an early revision, call regulator_get_optional() to detect whether an external VDDD supply is available. 3. If external VDDD is present, call sgtl5000_replace_vddd_with_ldo() to update sgtl5000->supplies info. 4. Drop regulator_bulk_get() call in sgtl5000_replace_vddd_with_ldo(), and call it in sgtl5000_enable_regulators() no matter it's an external VDDD or internal LDO. 5. Call regulator_bulk_enable() to enable these 3 regulators. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ASoC: Add SAI SoC Digital Audio Interface driver.Xiubo Li
This adds Freescale SAI ASoC Audio support. This implementation is only compatible with device tree definition. Features: o Supports playback/capture o Supports 16/20/24 bit PCM o Supports 8k - 96k sample rates o Supports master and slave mode. Signed-off-by: Alison Wang <b18965@freescale.com> Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ASoC: fsl/mxs: Remove unnecessarily gendered languageMark Brown
The kernel as a number of cases of gendered language. The majority of these refer to objects that don't have gender in English, and so I've replaced them with "it" and "its". Some refer to people (developers or users), and I've replaced these with the singular "they" variant. Some are simply typos that I've fixed up. I've left cases where gendered language was used to refer to specific individuals, was a quote or is part of license text. Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-18ALSA: hda - Explicitly keep codec powered up in hdmi_present_senseDavid Henningsson
This should help us avoid the following mutex deadlock: [] mutex_lock+0x2a/0x50 [] hdmi_present_sense+0x53/0x3a0 [snd_hda_codec_hdmi] [] generic_hdmi_resume+0x5a/0x70 [snd_hda_codec_hdmi] [] hda_call_codec_resume+0xec/0x1d0 [snd_hda_codec] [] snd_hda_power_save+0x1e4/0x280 [snd_hda_codec] [] codec_exec_verb+0x5f/0x290 [snd_hda_codec] [] snd_hda_codec_read+0x5b/0x90 [snd_hda_codec] [] snd_hdmi_get_eld_size+0x1e/0x20 [snd_hda_codec_hdmi] [] snd_hdmi_get_eld+0x2c/0xd0 [snd_hda_codec_hdmi] [] hdmi_present_sense+0x9a/0x3a0 [snd_hda_codec_hdmi] [] hdmi_repoll_eld+0x34/0x50 [snd_hda_codec_hdmi] Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-18ALSA: hda - Add Dell headset detection quirk for one more laptop modelHui Wang
On the Dell machines with codec whose Subsystem Id is 0x10280640, no external microphone can be detected when plugging a 3-ring headset. Using ALC255_FIXUP_DELL1_MIC_NO_PRESENCE can fix this problem. The codec (Vendor ID: 0x10ec0255) on the machine belongs to alc_269 family. BugLink: https://bugs.launchpad.net/bugs/1260303 Cc: David Henningsson <david.henningsson@canonical.com> Cc: stable@vger.kernel.org Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-18ASoC: wm8904: fix DSP mode B configurationBo Shen
When wm8904 work in DSP mode B, we still need to configure it to work in DSP mode. Or else, it will work in Right Justified mode. Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
2013-12-18ASoC: wm_adsp: Add small delay while polling DSP RAM startCharles Keepax
Some devices are getting very close to the limit whilst polling the RAM start, this patch adds a small delay to this loop to give a longer startup timeout. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
2013-12-18ASoC: wm_adsp: Remove duplicate info message for DSP RAM readyCharles Keepax
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-17ALSA: Add SNDRV_PCM_STATE_PAUSED case in wait_for_avail functionJongHo Kim
When the process is sleeping at the SNDRV_PCM_STATE_PAUSED state from the wait_for_avail function, the sleep process will be woken by timeout(10 seconds). Even if the sleep process wake up by timeout, by this patch, the process will continue with sleep and wait for the other state. Signed-off-by: JongHo Kim <furmuwon@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-17ASoC: kirkwood: Fix the CPU DAI ratesJean-Francois Moine
This patch fixes the rates declared in the CPU DAI parameters: - SNDRV_PCM_RATE_KNOT and the discrete rates SNDRV_PCM_RATE_xxx should not be used with SNDRV_PCM_RATE_CONTINUOUS, - SNDRV_PCM_RATE_CONTINUOUS asks for rate_min and rate_max, - the device may do streaming down to 5512Hz. Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-17ASoC: tegra: Tweak matching of AC97 componentsLucas Stach
Matching works completely based on the cpu of_node. Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-17ASoC: wm5110: Correct HPOUT3 DAPM route typoCharles Keepax
Reported-by: Kyung-Kwee Ryu <kyung-kwee.ryu@wolfsonmicro.com> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
2013-12-17ASoC: mmp-pcm: config pcm slave via generic dmaengineQiao Zhou
use snd_dmaengine_pcm_prepare_slave_config to set slave config, and remove the max_burst_size = 4 hard code. select SND_SOC_GENERIC_DMAENGINE_PCM for mmp-pcm. Signed-off-by: Qiao Zhou <zhouqiao@marvell.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-17ASoC: wm8997: Use async writesMark Brown
When writing the patch write to the device asynchronously, allowing better performance when used with a bus like SPI which supports this by minimising the need to context switch back to the driver to get the next bit of data. Signed-off-by: Mark Brown <broonie@linaro.org> Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
2013-12-17ASoC: wm5110: Use async writesMark Brown
When writing the patch write to the device asynchronously, allowing better performance when used with a bus like SPI which supports this by minimising the need to context switch back to the driver to get the next bit of data. Signed-off-by: Mark Brown <broonie@linaro.org> Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
2013-12-17ASoC: wm5102: Use async writesMark Brown
When writing the patch write to the device asynchronously, allowing better performance when used with a bus like SPI which supports this by minimising the need to context switch back to the driver to get the next bit of data. Signed-off-by: Mark Brown <broonie@linaro.org> Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
2013-12-17ASoC: arizona: Use async writesMark Brown
Where possible write to the device asynchronously, allowing better performance when used with a bus like SPI which supports this by minimising the need to context switch back to the driver to get the next bit of data. Signed-off-by: Mark Brown <broonie@linaro.org> Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
2013-12-17ASoC: dmaengine: Add config parameter NULL check.Xiubo Li
Because the "ASoC: dmaengine-pcm: Provide default config" has provided us one defualt config of DMA. When using this, the config parameter of devm_snd_dmaengine_pcm_register() will be NULL, so here we need to have a check before using it. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-16ASoC: axi-spdif: Use devm_ioremap_resource() instead of ↵Fengguang Wu
devm_request_and_ioremap() devm_request_and_ioremap() has been deprecated in favour of devm_ioremap_resource(). Fixes the following coccinelle warning: sound/soc/adi/axi-spdif.c:194:8-32: ERROR: deprecated devm_request_and_ioremap() API used on line 194 Generated by: coccinelle/api/devm_ioremap_resource.cocci Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-16ASoC: axi-spdif: Use devm_ioremap_resource() instead of ↵Fengguang Wu
devm_request_and_ioremap() devm_request_and_ioremap() has been deprecated in favour of devm_ioremap_resource(). Fixes the following coccinelle warning: sound/soc/adi/axi-i2s.c:195:8-32: ERROR: deprecated devm_request_and_ioremap() API used on line 195 Generated by: coccinelle/api/devm_ioremap_resource.cocci Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-16ASoC: sgtl5000: read chip revision for onceShawn Guo
Store chip revision in struct sgtl5000_priv when sgtl5000_i2c_probe() reads it out from register, so that we can use it in sgtl5000_enable_regulators() with no need to read register again. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-16ASoC: dapm: update DPCM runtime when mixer/mux changesNenghua Cao
DPCM can dynamically alter the FE to BE PCM links at runtime based on mixer/mux setting updates. Add soc_dpcm_runtime_update() calling in get/put function for mixer/mux to support this feature. Signed-off-by: Nenghua Cao <nhcao@marvell.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-16ASoC: tegra20-ac97: add missing clk_disable_unprepare() on error pathWei Yongjun
Add the missing clk_disable_unprepare() before return from tegra20_ac97_platform_probe() in the error handling case. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-16Merge branch 'for-linus' into for-nextTakashi Iwai
2013-12-16ASoC: fsl_ssi: Add dual fifo mode supportNicolin Chen
By enabling dual fifo mode, it would allow SSI enter a better performance to transimit/receive data without occasional hardware underrun/overrun. Signed-off-by: Nicolin Chen <b42378@freescale.com> Acked-by: Timur Tabi <timur@tabi.org> Acked-by: Mark Brown <broonie@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-12-13Merge tag 'asoc-v3.13-rc3' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v3.13 A few driver and error handling fixes plus a fix to ensure that we mute streams when we should. The Atmel trigger addition is a fix to ensure that we do the correct sequence of interactions with the hardware.
2013-12-13ALSA: hda - Add Dell headset detection quirk for three laptop modelsHui Wang
On the Dell machines with codec whose Subsystem Id is 0x10280610, 0x10280629 or 0x1028063e, no external microphone can be detected when plugging a 3-ring headset. If we add "model=dell-headset-multi" for the snd-hda-intel.ko, the problem will disappear. The codecs on these machines belong to alc_269 family. BugLink: https://bugs.launchpad.net/bugs/1260303 Cc: David Henningsson <david.henningsson@canonical.com> Cc: stable@vger.kernel.org Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-12ASoC: tegra: update module reset list for Tegra124Stephen Warren
Tegra124 adds a number of extra modules into the configlink bus, which must be taken out of reset before the bus is used. Update the AHUB driver to know about these extra modules (the AHUB HW module hosts the configlink bus). Based-on-work-by: Arun Shamanna Lakshmi <aruns@nvidia.com> Based-on-work-by: Songhee Baek <sbaek@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@linaro.org> --- This patch depends on "ASoC: tegra: use reset framework" to compile, which is ack'd and slated to go through a (large) topic branch in the Tegra tree. So, we can either: a) Merge that Tegra topic branch into the ASoC tree, then apply this. Note that I haven't created the topic branch yet, since I'm still waiting for DMA dependencies to be applied. b) Apply this change to the Tegra tree too. This change isn't directly related to the changes in the Tegra tree; it just makes use of the new reset controller feature that's introduced there.
2013-12-12ARM: at91: remove AT91_PROGRAMMABLE_CLOCKS configuration optionNicolas Ferre
This AT91 specific Kconfig option removed the code that dealt with programmable clocks. Each AT91 SoC embeds programmable clocks and there is little gain to remove this code in case that such a clock is not used. If this option is not selected, it causes certain drivers to fail to build. We simply remove this option instead of adding code just to build a workaround. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-12-12ALSA: hda - Add enable_msi=0 workaround for four HP machinesDavid Henningsson
While enabling these machines, we found we would sometimes lose an interrupt if we change hardware volume during playback, and that disabling msi fixed this issue. (Losing the interrupt caused underruns and crackling audio, as the one second timeout is usually bigger than the period size.) The machines were all machines from HP, running AMD Hudson controller, and Realtek ALC282 codec. Cc: stable@vger.kernel.org BugLink: https://bugs.launchpad.net/bugs/1260225 Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-12Merge remote-tracking branches 'asoc/fix/atmel', 'asoc/fix/fsl', ↵Mark Brown
'asoc/fix/tegra' and 'asoc/fix/wm8962' into asoc-linus
2013-12-12Merge remote-tracking branch 'asoc/fix/dma' into asoc-linusMark Brown
2013-12-12Merge remote-tracking branch 'asoc/fix/core' into asoc-linusMark Brown
2013-12-12ASoC: samsung: Use ASoC dmaengine code where possibleMark Brown
Since all Exynos platforms have been converted to dmaengine and many of the older platforms are in the process of conversion they do not need to use the legacy s3c-dma APIs for DMA but can instead use the standard ASoC dmaengine helpers. This both allows them to benefit from improvements implemented in the generic code and supports multiplatform. This patch includes some fixes from Padma for Exynos SoCs, her testing was on a slightly earlier version of the patch due to unrelated breakage preventing testing. Signed-off-by: Mark Brown <broonie@linaro.org> Tested By: Padmavathi Venna <padma.v@samsung.com>
2013-12-12ASoC: samsung: Provide helper for DMA initMark Brown
In preparation for using the dmaengine helpers in ASoC rather than the dmaengine wrappers for the Samsung API wrap the configuration of dma_data. The dmaengine code expects different data to that used by the legacy API. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-11ASoC: tegra: convert to standard DMA DT bindingsStephen Warren
By passing no flags when calling snd_dmaengine_pcm_register() from tegra_pcm.c, we end up using dma_request_slave_channel() rather than dmaengine_pcm_compat_request_channel(), and hence rely on the standard DMA DT bindings and stashing the DMA slave ID away during channel allocation. This means there's no need to use a custom DT property to store the slave ID. So, remove all the code that parsed it. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@linaro.org>
2013-12-11ASoC: tegra: allocate AHUB FIFO during probe() not startup()Stephen Warren
The Tegra30 I2S driver currently allocates DMA FIFOs from the AHUB only when an audio stream starts playback. This is theoretically nice for resource sharing, but makes no practical difference for any configuration the drivers currently support. However, this deferral prevents conversion to the standard DMA DT bindings, since conversion requires knowledge of the specific DMA channel to be allocated, which in turn depends on which specific FIFO was allocated. For this reason, move the FIFO allocation into probe() to allow later conversion to the standard DMA DT bindings. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@linaro.org>
2013-12-11ASoC: tegra: call pm_runtime APIs around register accessesStephen Warren
Call pm_runtime_get_sync() before all register accesses; the HW requires clocks to be running when accessing registers. This hasn't been needed to date, since all register IO was performed while playback was active, and hence the ASoC core had already called pm_runtime_get(). However, an imminent future commit will allocate and set up the FIFOs and routing during probe(), when that "protection" won't be in place. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@linaro.org>
2013-12-11ASoC: tegra: use reset frameworkStephen Warren
Tegra's clock driver now provides an implementation of the common reset API (include/linux/reset.h). Use this instead of the old Tegra- specific API; that will soon be removed. This change also renames "clock"/"clk" to "modules"/"mod" in symbols related to entries in configlink_clocks[], since: - We don't care about clock handles any more, but rather reset handles, so the old name isn't applicable. - It really is a list of modules on the bus, about which we currently only care about reset handles. If we start caring about any other aspect of the modules in the future, we won't have to rename all these symbols again. Note: The addition of "depends COMMON_CLOCK" is something that was missing before, not a new requirement. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@linaro.org> Reviewed-by: Thierry Reding <treding@nvidia.com>
2013-12-11Merge tag 'asoc-dma-v3.14' into for-3.14/dmas-resets-reworkStephen Warren
ASoC: dma: Generic ASoC dmaengine driver enhancements This is the work so far on dmaengine for v3.14, it is being cross merged into the Tegra tree to support a large DMA overhaul there. The main additions are a change in the DMA request API which allows better interaction at system startup using deferred probes and methods for overriding the default device and channel names used to request DMA.
2013-12-11ASoC: dmaengine: fix deferred probe detectionStephen Warren
Check the return value of dma_request_slave_channel_reason() to see if deferred probe happens, not the variable the return value will be assigned to later. Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes: 5eda87b890f8 ("ASoC: dmaengine: support deferred probe for DMA channels") Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>