summaryrefslogtreecommitdiff
path: root/sound
AgeCommit message (Collapse)AuthorFilesLines
2021-03-04ASoC: codecs: add missing max_register in regmap configSrinivas Kandagatla1-0/+1
[ Upstream commit e8820dbddbcad7e91daacf7d42a49d1d04a4e489 ] For some reason setting max_register was missed from regmap_config. Without this cat /sys/kernel/debug/regmap/sdw:0:217:2010:0:1/range actually throws below Warning. WARNING: CPU: 7 PID: 540 at drivers/base/regmap/regmap-debugfs.c:160 regmap_debugfs_get_dump_start.part.10+0x1e0/0x220 ... Call trace: regmap_debugfs_get_dump_start.part.10+0x1e0/0x220 regmap_reg_ranges_read_file+0xc0/0x2e0 full_proxy_read+0x64/0x98 vfs_read+0xa8/0x1e0 ksys_read+0x6c/0x100 __arm64_sys_read+0x1c/0x28 el0_svc_common.constprop.3+0x6c/0x190 do_el0_svc+0x24/0x90 el0_svc+0x14/0x20 el0_sync_handler+0x90/0xb8 el0_sync+0x158/0x180 ... Fixes: a0aab9e1404a ("ASoC: codecs: add wsa881x amplifier support") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20210201161429.28060-1-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04ASoC: cpcap: fix microphone timeslot maskSebastian Reichel1-6/+6
[ Upstream commit de5bfae2fd962a9da99f56382305ec7966a604b9 ] The correct mask is 0x1f8 (Bit 3-8), but due to missing BIT() 0xf (Bit 0-3) was set instead. This means setting of CPCAP_BIT_MIC1_RX_TIMESLOT0 (Bit 3) still worked (part of both masks). On the other hand the code does not properly clear the other MIC timeslot bits. I think this is not a problem, since they are probably initialized to 0 and not touched by the driver anywhere else. But the mask also contains some wrong bits, that will be cleared. Bit 0 (CPCAP_BIT_SMB_CDC) should be safe, since the driver enforces it to be 0 anyways. Bit 1-2 are CPCAP_BIT_FS_INV and CPCAP_BIT_CLK_INV. This means enabling audio recording forces the codec into SND_SOC_DAIFMT_NB_NF mode, which is obviously bad. The bug probably remained undetected, because there are not many use cases for routing microphone to the CPU on platforms using cpcap and user base is small. I do remember having some issues with bad sound quality when testing voice recording back when I wrote the driver. It probably was this bug. Fixes: f6cdf2d3445d ("ASoC: cpcap: new codec") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> Reviewed-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/20210123172945.3958622-1-sre@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04ASoC: SOF: Intel: hda: cancel D0i3 work during runtime suspendRanjani Sridharan1-0/+4
[ Upstream commit 0084364d9678e9d722ee620ed916f2f9954abdbf ] Cancel the D0i3 work during runtime suspend as no streams are active at this point anyway. Fixes: 63e51fd33fef ("ASoC: SOF: Intel: cnl: Implement feature to support DSP D0i3 in S0") Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20210128092345.1033085-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04ASoC: qcom: lpass-cpu: Remove bit clock state checkSrinivasa Rao Mandadapu3-18/+8
[ Upstream commit 6c28377b7114d04cf82eedffe9dcc8fa66ecec48 ] No need of BCLK state maintenance from driver side as clock_enable and clk_disable API's maintaing state counter. One of the major issue was spotted when Headset jack inserted while playback continues, due to same PCM device node opens twice for playaback/capture and closes once for capture and playback continues. It can resolve the errors in such scenarios. Fixes: b1824968221c ("ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state") Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org> Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20210127151824.8929-1-srivasam@codeaurora.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04ASoC: qcom: qdsp6: Move frontend AIFs to q6asm-daiStephan Gerhold2-18/+21
[ Upstream commit 6fd8d2d275f74baa7ac17b2656da1235f56dab99 ] At the moment it is necessary to set up the DAPM routes between front-end AIF<->DAI explicitly in the device tree, e.g. using audio-routing = "MM_DL1", "MultiMedia1 Playback", "MM_DL3", "MultiMedia3 Playback", "MM_DL4", "MultiMedia4 Playback", "MultiMedia2 Capture", "MM_UL2"; This is prone to mistakes and (sadly) there is no clear error if one of these routes is missing. :( Actually, this should not be necessary because the ASoC core normally automatically links AIF<->DAI within snd_soc_dapm_link_dai_widgets(). This is done using the "stname" parameter of SND_SOC_DAPM_AIF_IN/OUT. For SND_SOC_DAPM_AIF_IN("MM_DL1", "MultiMedia1 Playback", 0, 0, 0, 0), it should create the route from above: MM_DL1 <-> MultiMedia1 Playback. This does not work at the moment because the AIF widget (MM_DL1) and the DAI widget (MultiMedia1 Playback) belong to different DAPM contexts (q6routing / q6asm-dai). Fix this by declaring the AIF widgets in the same driver as the DAIs (q6asm-dai). Now the routes above are created automatically and no longer need to be specified in the device tree. This is also more consistent with the back-end AIFs which are already declared in q6afe-dais instead of q6routing. q6routing should only link the components together using mixers. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Fixes: 2a9e92d371db ("ASoC: qdsp6: q6asm: Add q6asm dai driver") Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20201211203255.148246-1-stephan@gerhold.net Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04ASoC: cs42l56: fix up error handling in probeDan Carpenter1-1/+2
[ Upstream commit 856fe64da84c95a1d415564b981ae3908eea2a76 ] There are two issues with this code. The first error path forgot to set the error code and instead returns success. The second error path doesn't clean up. Fixes: 272b5edd3b8f ("ASoC: Add support for CS42L56 CODEC") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/X9NE/9nK9/TuxuL+@mwanda Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04ALSA: pcm: Don't call sync_stop if it hasn't been stoppedTakashi Iwai1-2/+3
commit 700cb70730777c159a988e01daa93f20a1ae9b58 upstream. The PCM stop operation sets the stop_operating flag for indicating the sync_stop post-process. This flag is, however, set unconditionally even if the PCM trigger weren't issued. This may lead to inconsistency in the driver side. Correct the code to set stop_operating flag only after the trigger STOP is actually called. Fixes: 1e850beea278 ("ALSA: pcm: Add the support for sync-stop operation") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210206203656.15959-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04ALSA: pcm: Assure sync with the pending stop operation at suspendTakashi Iwai1-1/+7
commit 2c87c1a49c9d113a9f3e8e951d7d64be5ff50ac1 upstream. The current PCM code calls the sync_stop at the resume action due to the analogy to the PCM prepare call pattern. But, it makes little sense, as the sync should have been done rather at the suspend time, not at the resume time. This patch corrects the sync_stop call at suspend/resume to assure the sync before finishing the suspend. Fixes: 1e850beea278 ("ALSA: pcm: Add the support for sync-stop operation") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210206203656.15959-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04ALSA: pcm: Call sync_stop at disconnectionTakashi Iwai4-8/+17
commit 29bb274e94974669acb5186a75538f20df1508b6 upstream. The PCM core should perform the sync for the pending stop operations at disconnection. Otherwise it may lead to unexpected access. Currently the old user of sync_stop, USB-audio driver, has its own sync, so this isn't needed, but it's better to guarantee the sync in the PCM core level. This patch adds the missing sync_stop call at PCM disconnection callback. It also assures the IRQ sync if it's specified in the card. snd_pcm_sync_stop() is slightly modified to be called also for any PCM substream object now. Fixes: 1e850beea278 ("ALSA: pcm: Add the support for sync-stop operation") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210206203656.15959-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04ALSA: usb-audio: Fix PCM buffer allocation in non-vmalloc modeTakashi Iwai1-1/+1
commit fb3c293b82c31a9a68fbcf4e7a45fadd8a47ea2b upstream. The commit f274baa49be6 ("ALSA: usb-audio: Allow non-vmalloc buffer for PCM buffers") introduced the mode to allocate coherent pages for PCM buffers, and it used bus->controller device as its DMA device. It turned out, however, that bus->sysdev is a more appropriate device to be used for DMA mapping in HCD code. This patch corrects the device reference accordingly. Note that, on most platforms, both point to the very same device, hence this patch doesn't change anything practically. But on platforms like xhcd-plat hcd, the change becomes effective. Fixes: f274baa49be6 ("ALSA: usb-audio: Allow non-vmalloc buffer for PCM buffers") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210205144559.29555-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-13ASoC: Intel: sof_sdw: set proper flags for Dell TGL-H SKU 0A5ELibin Yang1-0/+10
[ Upstream commit 9ad9bc59dde106e56dd59ce2bec7c1b08e1f0eb4 ] Add flag "SOF_RT711_JD_SRC_JD2", flag "SOF_RT715_DAI_ID_FIX" and "SOF_SDW_FOUR_SPK" to the Dell TGL-H based SKU "0A5E". Signed-off-by: Libin Yang <libin.yang@intel.com> Co-developed-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Hui Wang <hui.wang@canonical.com> Reviewed-by: Bard Liao <bard.liao@intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20210125081117.814488-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-13ASoC: ak4458: correct reset polarityEliot Blennerhassett1-15/+7
[ Upstream commit e953daeb68b1abd8a7d44902786349fdeef5c297 ] Reset (aka power off) happens when the reset gpio is made active. Change function name to ak4458_reset to match devicetree property "reset-gpios" Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/ce650f47-4ff6-e486-7846-cc3d033f3601@blennerhassett.gen.nz Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-13ALSA: hda: intel-dsp-config: add PCI id for TGL-HBard Liao1-0/+4
[ Upstream commit c5b5ff607d6fe5f4284acabd07066f96ecf96ac4 ] Adding PCI id for TGL-H. Like for other TGL platforms, SOF is used if Soundwire codecs or PCH-DMIC is detected. Signed-off-by: Bard Liao <bard.liao@intel.com> Reviewed-by: Xiuli Pan <xiuli.pan@intel.com> Reviewed-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20210125083051.828205-1-kai.vehmanen@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-13ASoC: Intel: Skylake: Zero snd_ctl_elem_valueRicardo Ribalda1-1/+1
[ Upstream commit 1d8fe0648e118fd495a2cb393a34eb8d428e7808 ] Clear struct snd_ctl_elem_value before calling ->put() to avoid any data leak. Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210121171644.131059-2-ribalda@chromium.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-13ASoC: wm_adsp: Fix control name parsing for multi-fwJames Schulman1-0/+3
[ Upstream commit a8939f2e138e418c2b059056ff5b501eaf2eae54 ] When switching between firmware types, the wrong control can be selected when requesting control in kernel API. Use the currently selected DSP firwmare type to select the proper mixer control. Signed-off-by: James Schulman <james.schulman@cirrus.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20210115201105.14075-1-james.schulman@cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-07ALSA: hda: Add Cometlake-R PCI IDKai-Chuan Hsieh1-0/+3
[ Upstream commit f84d3a1ec375e46a55cc3ba85c04272b24bd3921 ] Add HD Audio Device PCI ID for the Intel Cometlake-R platform Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Kai-Chuan Hsieh <kaichuan.hsieh@canonical.com> Link: https://lore.kernel.org/r/20210115031515.13100-1-kaichuan.hsieh@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-07ALSA: hda: Add AlderLake-P PCI ID and HDMI codec vidKai Vehmanen2-0/+4
[ Upstream commit 5e941fc033e411118fb3a7d9e0b97f8cf702cd39 ] Add HD Audio PCI ID and HDMI codec vendor ID for Intel AlderLake-P. Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Link: https://lore.kernel.org/r/20210113155629.4097057-1-kai.vehmanen@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-07ASoC: SOF: Intel: hda: Resume codec to do jack detectionKai-Heng Feng1-2/+1
[ Upstream commit bcd7059abc19e6ec5b2260dff6a008fb99c4eef9 ] Instead of queueing jackpoll_work, runtime resume the codec to let it use different jack detection methods based on jackpoll_interval. This partially matches SOF driver's behavior with commit a6e7d0a4bdb0 ("ALSA: hda: fix jack detection with Realtek codecs when in D3"), the difference is SOF unconditionally resumes the codec. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20210112181128.1229827-1-kai.heng.feng@canonical.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03ASoC: topology: Fix memory corruption in soc_tplg_denum_create_values()Dan Carpenter1-1/+1
commit 543466ef3571069b8eb13a8ff7c7cfc8d8a75c43 upstream. The allocation uses sizeof(u32) when it should use sizeof(unsigned long) so it leads to memory corruption later in the function when the data is initialized. Fixes: 5aebe7c7f9c2 ("ASoC: topology: fix endianness issues") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YAf+8QZoOv+ct526@mwanda Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03ASoC: topology: Properly unregister DAI on removalAmadeusz Sławiński1-4/+5
commit fc4cb1e15f0c66f2e37314349dc4a82bd946fbb1 upstream. DAIs need to be removed when topology unload function is called (usually done when component is being removed). We can't do this when device is being removed, as structures we operate on when removing DAI can already be freed. Fixes: 6ae4902f2f34 ("ASoC: soc-topology: use devm_snd_soc_register_dai()") Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20210120152846.1703655-2-amadeuszx.slawinski@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03ASoC: mediatek: mt8183-mt6358: ignore TDM DAI link by defaultTzung-Bi Shih1-1/+4
commit 5ac154443e686b06242aa49de30a12b74ea9ca98 upstream. hdmi-codec is an optional property. Ignore to bind TDM DAI link if the property isn't specified. Fixes: f2024dc55fcb ("ASoC: mediatek: mt8183: use hdmi-codec") Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> Link: https://lore.kernel.org/r/20210120092237.1553938-2-tzungbi@google.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03ASoC: mediatek: mt8183-da7219: ignore TDM DAI link by defaultTzung-Bi Shih1-1/+4
commit 4d36ed8eb0f749c9e781e0d3b041a7adeedcdaa9 upstream. hdmi-codec is an optional property. Ignore to bind TDM DAI link if the property isn't specified. Fixes: 5bdbe9771177 ("ASoC: mediatek: mt8183-da7219: use hdmi-codec") Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> Link: https://lore.kernel.org/r/20210120092237.1553938-3-tzungbi@google.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03ASoC: qcom: lpass: Fix out-of-bounds DAI ID lookupStephan Gerhold1-1/+1
[ Upstream commit 70041000450d0a071bf9931d634c8e2820340236 ] The "dai_id" given into LPAIF_INTFDMA_REG(...) is already the real DAI ID, not an index into v->dai_driver. Looking it up again seems entirely redundant. For IPQ806x (and SC7180 since commit 09a4f6f5d21c ("ASoC: dt-bindings: lpass: Fix and common up lpass dai ids") this is now often an out-of-bounds read because the indexes in the "dai_driver" array no longer match the actual DAI ID. Cc: Srinivasa Rao Mandadapu <srivasam@codeaurora.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver") Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20210125104442.135899-1-stephan@gerhold.net Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03ASoC: SOF: Intel: soundwire: fix select/depend unmet dependenciesPierre-Louis Bossart1-1/+2
[ Upstream commit bd9038faa9d7f162b47e1577e35ec5eac39f9d90 ] The LKP bot reports the following issue: WARNING: unmet direct dependencies detected for SOUNDWIRE_INTEL Depends on [m]: SOUNDWIRE [=m] && ACPI [=y] && SND_SOC [=y] Selected by [y]: - SND_SOC_SOF_INTEL_SOUNDWIRE [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_SOF_TOPLEVEL [=y] && SND_SOC_SOF_INTEL_TOPLEVEL [=y] && SND_SOC_SOF_INTEL_PCI [=y] This comes from having tristates being configured independently, when in practice the CONFIG_SOUNDWIRE needs to be aligned with the SOF choices: when the SOF code is compiled as built-in, the CONFIG_SOUNDWIRE also needs to be 'y'. The easiest fix is to replace the 'depends' with a 'select' and have a single user selection to activate SoundWire on Intel platforms. This still allows regmap to be compiled independently as a module. This is just a temporary fix, the select/depend usage will be revisited and the SOF Kconfig re-organized, as suggested by Arnd Bergman. Reported-by: kernel test robot <lkp@intel.com> Fixes: a115ab9b8b93e ('ASoC: SOF: Intel: add build support for SoundWire') Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20210122005725.94163-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03ASoC: Intel: Skylake: skl-topology: Fix OOPs ib skl_tplg_completeRicardo Ribalda1-6/+7
[ Upstream commit c1c3ba1f78354a20222d291ed6fedd17b7a74fd7 ] If dobj->control is not initialized we end up in an OOPs during skl_tplg_complete: [ 26.553358] BUG: kernel NULL pointer dereference, address: 0000000000000078 [ 26.561151] #PF: supervisor read access in kernel mode [ 26.566897] #PF: error_code(0x0000) - not-present page [ 26.572642] PGD 0 P4D 0 [ 26.575479] Oops: 0000 [#1] PREEMPT SMP PTI [ 26.580158] CPU: 2 PID: 2082 Comm: udevd Tainted: G C 5.4.81 #4 [ 26.588232] Hardware name: HP Soraka/Soraka, BIOS Google_Soraka.10431.106.0 12/03/2019 [ 26.597082] RIP: 0010:skl_tplg_complete+0x70/0x144 [snd_soc_skl] Fixes: 2d744ecf2b98 ("ASoC: Intel: Skylake: Automatic DMIC format configuration according to information from NHL") Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Tested-by: Lukasz Majczak <lma@semihalf.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210121171644.131059-1-ribalda@chromium.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03ASoC: qcom: lpass-ipq806x: fix bitwidth regmap fieldSrinivas Kandagatla1-1/+1
[ Upstream commit 1e066a23e76f90c9c39c189fe0dbf7c6e3dd5044 ] BIT_WIDTH field in I2S_CTL register is two bits wide, however recent regmap field conversion patch trimmed it down to one bit. Fix this by correcting the bit range! Fixes: b5022a36d28f ("ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20210119174700.32639-1-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03ASoC: qcom: Fix broken support to MI2S TERTIARY and QUATERNARYSrinivas Kandagatla4-7/+38
[ Upstream commit cd3484f7f1386071b1af159023917ed12c182d39 ] lpass hdmi support patch totally removed support for MI2S TERTIARY and QUATERNARY. One of the major issue was spotted with the design of having separate SoC specific header files for the common lpass driver. This design is prone to break as an when new SoC header is added as the common DAI ids of other SoCs will be overwritten by the new ones. Having a common header qcom,lpass.h should fix the issue and any new DAI ids should be added to the common header. With this change lpass also needs a new of_xlate function to resolve dai name. Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver") Reported-by: Jun Nie <jun.nie@linaro.org> Reported-by: Stephan Gerhold <stephan@gerhold.net> Tested-by: Srinivasa Rao <srivasam@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Tested-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20210119171527.32145-3-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03ASoC: qcom: Fix incorrect volatile registersSrinivasa Rao Mandadapu2-33/+2
[ Upstream commit 315fbe4cef98ee5fb6085bc54c7f25eb06466c70 ] MI2S and DMA control registers are not volatile, so remove these from volatile registers list. Registers reset state check by reading non volatile registers makes no use, so remove error check from cpu and platform trigger callbacks. Initialized map variable two times in lpass platform trigger API, so remove redundant initialization. Fixes commit b1824968221cc ("ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state") Signed-off-by: V Sujith Kumar Reddy <vsujithk@codeaurora.org> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org> Link: https://lore.kernel.org/r/1608192514-29695-2-git-send-email-srivasam@codeaurora.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-03ASoC: AMD Renoir - refine DMI entries for some Lenovo productsJaroslav Kysela1-2/+16
commit 40caffd66ca9ad1baa2d5541232675160bc6c772 upstream. Apparently, the DMI board name LNVNB161216 is also used also for products with the digital microphones connected to the AMD's audio bridge. Refine the DMI table - use product name identifiers extracted from https://bugzilla.redhat.com/show_bug.cgi?id=1892115 . The report for Lenovo Yoga Slim 7 14ARE05 (82A2) is in buglink. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=211299 Cc: <stable@kernel.org> Signed-off-by: Jaroslav Kysela <perex@perex.cz> Cc: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20210120144211.817937-1-perex@perex.cz Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03ALSA: hda/via: Apply the workaround generically for Clevo machinesTakashi Iwai1-1/+1
commit 4961167bf7482944ca09a6f71263b9e47f949851 upstream. We've got another report indicating a similar problem wrt the power-saving behavior with VIA codec on Clevo machines. Let's apply the existing workaround generically to all Clevo devices with VIA codecs to cover all in once. BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=1181330 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210126165603.11683-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03ALSA: hda/realtek: Enable headset of ASUS B1400CEPE with ALC256Jian-Hong Pan1-0/+1
commit 5de3b9430221b11a5e1fc2f5687af80777c8392a upstream. ASUS B1400CEPE laptop's headset audio is not enabled until ALC256_FIXUP_ASUS_HPE quirk is applied. Here is the original pin node values: 0x12 0x40000000 0x13 0x411111f0 0x14 0x90170110 0x18 0x411111f0 0x19 0x411111f0 0x1a 0x411111f0 0x1b 0x411111f0 0x1d 0x40461b45 0x1e 0x411111f0 0x21 0x04211020 Signed-off-by: Jian-Hong Pan <jhp@endlessos.org> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210122054705.48804-1-jhp@endlessos.org Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-27ASoC: SOF: Intel: hda: Avoid checking jack on system suspendKai-Heng Feng1-2/+4
commit ef4d764c99f792b725d4754a3628830f094f5c58 upstream. System takes a very long time to suspend after commit 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization"): [ 90.065964] PM: suspend entry (s2idle) [ 90.067337] Filesystems sync: 0.001 seconds [ 90.185758] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 90.188713] OOM killer disabled. [ 90.188714] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 90.190024] printk: Suspending console(s) (use no_console_suspend to debug) [ 90.904912] intel_pch_thermal 0000:00:12.0: CPU-PCH is cool [49C], continue to suspend [ 321.262505] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5 [ 328.426919] snd_hda_codec_realtek ehdaudio0D0: Unable to sync register 0x2b8000. -5 [ 329.490933] ACPI: EC: interrupt blocked That commit keeps the codec suspended during the system suspend. However, mute/micmute LED will clear codec's direct-complete flag by dpm_clear_superiors_direct_complete(). This doesn't play well with SOF driver. When its runtime resume is called for system suspend, hda_codec_jack_check() schedules jackpoll_work which uses snd_hdac_is_power_on() to check whether codec is suspended. Because the direct-complete path isn't taken, pm_runtime_disable() isn't called so snd_hdac_is_power_on() returns false and jackpoll continues to run, and snd_hda_power_up_pm() cannot power up an already suspended codec in multiple attempts, causes the long delay on system suspend: if (dev->power.direct_complete) { if (pm_runtime_status_suspended(dev)) { pm_runtime_disable(dev); if (pm_runtime_status_suspended(dev)) { pm_dev_dbg(dev, state, "direct-complete "); goto Complete; } pm_runtime_enable(dev); } dev->power.direct_complete = false; } When direct-complete path is taken, snd_hdac_is_power_on() returns true and hda_jackpoll_work() is skipped by accident. So this is still not correct. If we were to use snd_hdac_is_power_on() in system PM path, pm_runtime_status_suspended() should be used instead of pm_runtime_suspended(), otherwise pm_runtime_{enable,disable}() may change the outcome of snd_hdac_is_power_on(). Because devices suspend in reverse order (i.e. child first), it doesn't make much sense to resume an already suspended codec from audio controller. So avoid the issue by making sure jackpoll isn't used in system PM process. Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization") Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20210112181128.1229827-3-kai.heng.feng@canonical.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-27ASoC: SOF: Intel: fix page fault at probe if i915 init failsKai Vehmanen1-9/+9
commit 9c25af250214e45f6d1c21ff6239a1ffeeedf20e upstream. The earlier commit to fix runtime PM in case i915 init fails, introduces a possibility to hit a page fault. snd_hdac_ext_bus_device_exit() is designed to be called from dev.release(). Calling it outside device reference counting, is not safe and may lead to calling the device_exit() function twice. Additionally, as part of ext_bus_device_init(), the device is also registered with snd_hdac_device_register(). Thus before calling device_exit(), the device must be removed from device hierarchy first. Fix the issue by rolling back init actions by calling hdac_device_unregister() and then releasing device with put_device(). This matches with existing code in hdac-ext module. To complete the fix, add handling for the case where hda_codec_load_module() returns -ENODEV, and clean up the hdac_ext resources also in this case. In future work, hdac-ext interface should be extended to allow clients more flexibility to handle the life-cycle of individual devices, beyond just the current snd_hdac_ext_bus_device_remove(), which removes all devices. BugLink: https://github.com/thesofproject/linux/issues/2646 Reported-by: Jaroslav Kysela <perex@perex.cz> Fixes: 6c63c954e1c5 ("ASoC: SOF: fix a runtime pm issue in SOF when HDMI codec doesn't work") Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Libin Yang <libin.yang@intel.com> Reviewed-by: Bard Liao <bard.liao@intel.com> Link: https://lore.kernel.org/r/20210113150715.3992635-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-27ALSA: hda: Balance runtime/system PM if direct-complete is disabledKai-Heng Feng1-17/+7
[ Upstream commit 2b73649cee65b8e33c75c66348cb1bfe0ff9d766 ] After hibernation, HDA controller can't be runtime-suspended after commit 215a22ed31a1 ("ALSA: hda: Refactor codjc PM to use direct-complete optimization"), which enables direct-complete for HDA codec. The HDA codec driver didn't expect direct-complete will be disabled after it returns a positive value from prepare() callback. However, there are some places that PM core can disable direct-complete. For instance, system hibernation or when codec has subordinates like LEDs. So if the codec is prepared for direct-complete but PM core still calls codec's suspend or freeze callback, partially revert the commit and take the original approach, which uses pm_runtime_force_*() helpers to ensure PM refcount are balanced. Meanwhile, still keep prepare() and complete() callbacks to enable direct-complete and request a resume for jack detection, respectively. Reported-by: Kenneth R. Crudup <kenny@panix.com> Fixes: 215a22ed31a1 ("ALSA: hda: Refactor codec PM to use direct-complete optimization") Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20210119152145.346558-1-kai.heng.feng@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-27ALSA: hda/tegra: fix tegra-hda on tegra30 socPeter Geis1-1/+1
[ Upstream commit 615d435400435876ac68c1de37e9526a9164eaec ] Currently hda on tegra30 fails to open a stream with an input/output error. For example: speaker-test -Dhw:0,3 -c 2 speaker-test 1.2.2 Playback device is hw:0,3 Stream parameters are 48000Hz, S16_LE, 2 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 64 to 16384 Period size range from 32 to 8192 Using max buffer size 16384 Periods = 4 was set period_size = 4096 was set buffer_size = 16384 0 - Front Left Write error: -5,Input/output error xrun_recovery failed: -5,Input/output error Transfer failed: Input/output error The tegra-hda device was introduced in tegra30 but only utilized in tegra124 until recent chips. Tegra210/186 work only due to a hardware change. For this reason it is unknown when this issue first manifested. Discussions with the hardware team show this applies to all current tegra chips. It has been resolved in the tegra234, which does not have hda support at this time. The explanation from the hardware team is this: Below is the striping formula referenced from HD audio spec. { ((num_channels * bits_per_sample) / number of SDOs) >= 8 } The current issue is seen because Tegra HW has a problem with boundary condition (= 8) for striping. The reason why it is not seen on Tegra210/Tegra186 is because it uses max 2SDO lines. Max SDO lines is read from GCAP register. For the given stream (channels = 2, bps = 16); ratio = (channels * bps) / NSDO = 32 / NSDO; On Tegra30, ratio = 32/4 = 8 (FAIL) On Tegra210/186, ratio = 32/2 = 16 (PASS) On Tegra194, ratio = 32/4 = 8 (FAIL) ==> Earlier workaround was applied for it If Tegra210/186 is forced to use 4SDO, it fails there as well. So the behavior is consistent across all these chips. Applying the fix in [1] universally resolves this issue on tegra30-hda. Tested on the Ouya game console and the tf201 tablet. [1] commit 60019d8c650d ("ALSA: hda/tegra: workaround playback failure on Tegra194") Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Ion Agorria <ion@agorria.com> Reviewed-by: Sameer Pujar <spujar@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20210108135913.2421585-3-pgwipeout@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-27ASoC: rt711: mutex between calibration and power state changesShuming Fan1-0/+6
[ Upstream commit 6108f990c0887d3e8f1db2d13c7012e40a061f28 ] To avoid calibration time-out, this patch adds the mutex between calibration and power state changes Signed-off-by: Shuming Fan <shumingf@realtek.com> Link: https://lore.kernel.org/r/20201217085651.24580-1-shumingf@realtek.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-27ASoC: Intel: haswell: Add missing pm_opsCezary Rojewski1-0/+1
[ Upstream commit bb224c3e3e41d940612d4cc9573289cdbd5cb8f5 ] haswell machine board is missing pm_ops what prevents it from undergoing suspend-resume procedure successfully. Assign default snd_soc_pm_ops so this is no longer the case. Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20201217105401.27865-1-cezary.rojewski@intel.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-27ALSA: hda/via: Add minimum mute flagTakashi Iwai1-0/+1
commit 67ea698c3950d10925be33c21ca49ffb64e21842 upstream. It turned out that VIA codecs also mute the sound in the lowest mixer level. Turn on the dac_min_mute flag to indicate the mute-as-minimum in TLV like already done in Conexant and IDT codecs. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=210559 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210114072453.11379-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-27ALSA: hda/realtek - Limit int mic boost on Acer Aspire E5-575TChris Chiu1-0/+8
commit 495dc7637cb5ca8e39c46db818328410bb6e73a1 upstream. The Acer Apire E5-575T laptop with codec ALC255 has a terrible background noise comes from internal mic capture. And the jack sensing dose not work for headset like some other Acer laptops. This patch limits the internal mic boost on top of the existing ALC255_FIXUP_ACER_MIC_NO_PRESENCE quirk for Acer Aspire E5-575T. Signed-off-by: Chris Chiu <chiu@endlessos.org> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210114082728.74729-1-chiu@endlessos.org Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-27ALSA: seq: oss: Fix missing error check in snd_seq_oss_synth_make_info()Takashi Iwai1-1/+2
commit 217bfbb8b0bfa24619b11ab75c135fec99b99b20 upstream. snd_seq_oss_synth_make_info() didn't check the error code from snd_seq_oss_midi_make_info(), and this leads to the call of strlcpy() with the uninitialized string as the source, which may lead to the access over the limit. Add the proper error check for avoiding the failure. Reported-by: syzbot+e42504ff21cff05a595f@syzkaller.appspotmail.com Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210115093428.15882-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19ALSA: firewire-tascam: Fix integer overflow in midi_port_work()Geert Uytterhoeven1-1/+1
commit 9f65df9c589f249435255da37a5dd11f1bc86f4d upstream. As snd_fw_async_midi_port.consume_bytes is unsigned int, and NSEC_PER_SEC is 1000000000L, the second multiplication in port->consume_bytes * 8 * NSEC_PER_SEC / 31250 always overflows on 32-bit platforms, truncating the result. Fix this by precalculating "NSEC_PER_SEC / 31250", which is an integer constant. Note that this assumes port->consume_bytes <= 16777. Fixes: 531f471834227d03 ("ALSA: firewire-lib/firewire-tascam: localize async midi port") Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20210111130251.361335-3-geert+renesas@glider.be Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19ALSA: fireface: Fix integer overflow in transmit_midi_msg()Geert Uytterhoeven1-1/+1
commit e7c22eeaff8565d9a8374f320238c251ca31480b upstream. As snd_ff.rx_bytes[] is unsigned int, and NSEC_PER_SEC is 1000000000L, the second multiplication in ff->rx_bytes[port] * 8 * NSEC_PER_SEC / 31250 always overflows on 32-bit platforms, truncating the result. Fix this by precalculating "NSEC_PER_SEC / 31250", which is an integer constant. Note that this assumes ff->rx_bytes[port] <= 16777. Fixes: 19174295788de77d ("ALSA: fireface: add transaction support") Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20210111130251.361335-2-geert+renesas@glider.be Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19ASoC: Intel: fix error code cnl_set_dsp_D0()Dan Carpenter1-0/+1
commit f373a811fd9a69fc8bafb9bcb41d2cfa36c62665 upstream. Return -ETIMEDOUT if the dsp boot times out instead of returning success. Fixes: cb6a55284629 ("ASoC: Intel: cnl: Add sst library functions for cnl platform") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/X9NEvCzuN+IObnTN@mwanda Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19ASoC: meson: axg-tdmin: fix axg skew offsetJerome Brunet1-11/+2
commit a84dfb3d55934253de6aed38ad75990278a2d21e upstream. The signal captured on from tdm decoder of the AXG SoC is incorrect. It appears amplified. The skew offset of the decoder is wrong. Setting the skew offset to 3, like the g12 and sm1 SoCs, solves and gives correct data. Fixes: 13a22e6a98f8 ("ASoC: meson: add tdm input driver") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201217150834.3247526-1-jbrunet@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19ASoC: meson: axg-tdm-interface: fix loopbackJerome Brunet1-1/+13
commit 671ee4db952449acde126965bf76817a3159040d upstream. When the axg-tdm-interface was introduced, the backend DAI was marked as an endpoint when DPCM was walking the DAPM graph to find a its BE. It is no longer the case since this commit 8dd26dff00c0 ("ASoC: dapm: Fix handling of custom_stop_condition on DAPM graph walks") Because of this, when DPCM finds a BE it does everything it needs on the DAIs but it won't power up the widgets between the FE and the BE if there is no actual endpoint after the BE. On meson-axg HWs, the loopback is a special DAI of the tdm-interface BE. It is only linked to the dummy codec since there no actual HW after it. >From the DAPM perspective, the DAI has no endpoint. Because of this, the TDM decoder, which is a widget between the FE and BE is not powered up. >From the user perspective, everything seems fine but no data is produced. Connecting the Loopback DAI to a dummy DAPM endpoint solves the problem. Fixes: 8dd26dff00c0 ("ASoC: dapm: Fix handling of custom_stop_condition on DAPM graph walks") Cc: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201217150812.3247405-1-jbrunet@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19ASoC: dapm: remove widget from dirty list on freeThomas Hebb1-0/+1
commit 5c6679b5cb120f07652418524ab186ac47680b49 upstream. A widget's "dirty" list_head, much like its "list" list_head, eventually chains back to a list_head on the snd_soc_card itself. This means that the list can stick around even after the widget (or all widgets) have been freed. Currently, however, widgets that are in the dirty list when freed remain there, corrupting the entire list and leading to memory errors and undefined behavior when the list is next accessed or modified. I encountered this issue when a component failed to probe relatively late in snd_soc_bind_card(), c