- 09 Oct, 2023 7 commits
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Johan Hovold authored
Make sure to balance the runtime PM operations, including the disable count, on probe errors and on driver unbind. Fixes: 16572522 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231003155558.27079-8-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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Johan Hovold authored
Make sure to deregister the component when the driver is being unbound and before the underlying device-managed resources are freed. Fixes: 16572522 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231003155558.27079-7-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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Johan Hovold authored
Make sure to balance the runtime PM operations, including the disable count, on driver unbind. Fixes: 16572522 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231003155558.27079-6-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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Johan Hovold authored
Make sure to disable and free the regulators on probe errors and on driver unbind. Fixes: 16572522 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231003155558.27079-5-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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Johan Hovold authored
Add the missing code to release resources on bind errors, including the references taken by wcd938x_sdw_device_get() which also need to be dropped on unbind(). Fixes: 16572522 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231003155558.27079-4-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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Johan Hovold authored
Make sure to deregister the component before tearing down the resources it depends on during unbind(). Fixes: 16572522 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231003155558.27079-3-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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Johan Hovold authored
Drop the bogus error handling for a soundwire device backcast during bind() that cannot fail. Fixes: 16572522 ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20231003155558.27079-2-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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- 04 Oct, 2023 1 commit
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Fabio Estevam authored
imx8mp.dtsi passes #sound-dai-cells = <0> in the micfil node. Document #sound-dai-cells to fix the following schema warning: audio-controller@30ca0000: '#sound-dai-cells' does not match any of the regexes: 'pinctrl-[0-9]+' from schema $id: http://devicetree.org/schemas/sound/fsl,micfil.yaml#Signed-off-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Adam Ford <aford173@gmail.com> Link: https://lore.kernel.org/r/20231004122935.2250889-1-festevam@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 02 Oct, 2023 4 commits
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Sven Frotscher authored
Like the Lenovo 82TL, 82V2, 82QF and 82UG, the 82YM (Yoga 7 14ARP8) requires an entry in the quirk list to enable the internal microphone. The latter two received similar fixes in commit 1263cc0f ("ASoC: amd: yc: Fix non-functional mic on Lenovo 82QF and 82UG"). Fixes: c008323f ("ASoC: amd: yc: Fix a non-functional mic on Lenovo 82SJ") Cc: stable@vger.kernel.org Signed-off-by: Sven Frotscher <sven.frotscher@gmail.com> Link: https://lore.kernel.org/r/20230927223758.18870-1-sven.frotscher@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Antoine Gennart authored
The micbias setting for tlv320adc can also have the value '3' which means that the micbias ouput pin is connected to the input pin AVDD. Signed-off-by: Antoine Gennart <gennartan@disroot.org> Link: https://lore.kernel.org/r/20230929130117.77661-1-gennartan@disroot.orgSigned-off-by: Mark Brown <broonie@kernel.org>
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Zhang Shurong authored
This will attempt to disable the regulators if the initial enable fails which is a bug. Fix this bug by modifying the code to the correct sequence. Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com> Link: https://lore.kernel.org/r/tencent_4F37C9B5315B7960041E8E0ADDA869128F08@qq.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Matthias Reichl authored
Commit 4e087133 ("ASoC: hdmi-codec: fix channel info for compressed formats") accidentally changed hcp->chmap_idx from ca_id, the CEA channel allocation ID, to idx, the index to the table of channel mappings ordered by preference. This resulted in wrong channel maps being reported to userspace, eg for 5.1 "FL,FR,LFE,FC" was reported instead of the expected "FL,FR,LFE,FC,RL,RR": ~ # speaker-test -c 6 -t sine ... 0 - Front Left 3 - Front Center 1 - Front Right 2 - LFE 4 - Unknown 5 - Unknown ~ # amixer cget iface=PCM,name='Playback Channel Map' | grep ': values' : values=3,4,8,7,0,0,0,0 Switch this back to ca_id in case of PCM audio so the correct channel map is reported again and set it to HDMI_CODEC_CHMAP_IDX_UNKNOWN in case of non-PCM audio so the PCM channel map control returns "Unknown" channels (value 0). Fixes: 4e087133 ("ASoC: hdmi-codec: fix channel info for compressed formats") Cc: stable@vger.kernel.org Signed-off-by: Matthias Reichl <hias@horus.com> Link: https://lore.kernel.org/r/20230929195027.97136-1-hias@horus.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 29 Sep, 2023 2 commits
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Amadeusz Sławiński authored
On init we have sequence: for_each_card_prelinks(card, i, dai_link) { ret = snd_soc_add_pcm_runtime(card, dai_link); ret = init_some_other_things(...); if (ret) goto probe_end: for_each_card_rtds(card, rtd) { ret = soc_init_pcm_runtime(card, rtd); probe_end: while on exit: for_each_card_rtds(card, rtd) snd_soc_link_exit(rtd); If init_some_other_things() step fails due to error we end up with not fully setup rtds and try to call snd_soc_link_exit on them, which depending on contents on .link_exit handler, can end up dereferencing NULL pointer. Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Link: https://lore.kernel.org/r/20230929103243.705433-2-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Amadeusz Sławiński authored
When printing log related to component it is useful to know, to which component it applies to. Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Link: https://lore.kernel.org/r/20230929103243.705433-1-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 27 Sep, 2023 1 commit
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Vijendar Mukunda authored
Setting ACP ACLK as clock source when ACP enters D0 state causing firmware load failure as mentioned in below scenario. - Load snd_sof_amd_rembrandt - Play or Record audio - Stop audio - Unload snd_sof_amd_rembrandt - Reload snd_sof_amd_rembrandt If acp_clkmux_sel register field is set, then clock source will be set to ACP ACLK when ACP enters D0 state. During stream stop, if there is no active stream is running then acp firmware will set the ACP ACLK value to zero. When driver is reloaded and clock source is selected as ACP ACLK, as ACP ACLK is programmed to zero, firmware loading will fail. For RMB platform, remove the clock mux selection field so that ACP will use internal clock source when ACP enters D0 state. Fixes: 41cb85bc ("ASoC: SOF: amd: Add support for Rembrandt plaform.") Reported-by: coolstar <coolstarorganization@gmail.com> Closes: https://github.com/thesofproject/sof/issues/8137Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Link: https://lore.kernel.org/r/20230927071412.2416250-1-Vijendar.Mukunda@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 26 Sep, 2023 1 commit
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Shengjiu Wang authored
As the pll_id and pll_id can be zero (WM8960_SYSCLK_AUTO) with the commit 2bbc2df4 ("ASoC: wm8960: Make automatic the default clocking mode") Then the machine driver will skip to call set_sysclk() and set_pll() for codec, when the sysclk rate is different with what wm8960 read at probe, the output sound frequency is wrong. So change the fll_id and pll_id initial value, still keep machine driver's behavior same as before. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Link: https://lore.kernel.org/r/1695202992-24864-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 25 Sep, 2023 2 commits
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Shengjiu Wang authored
On i.MX8MP, the BCE and TERE bit are binding with mclk enablement, if BCE and TERE are cleared the MCLK also be disabled on output pin, that cause the external codec (wm8960) in wrong state. Codec (wm8960) is using the mclk to generate PLL clock, if mclk is disabled before disabling PLL, the codec (wm8960) won't generate bclk and frameclk when sysclk switch to MCLK source in next test case. The test case: $aplay -r44100 test1.wav (PLL source) $aplay -r48000 test2.wav (MCLK source) aplay: pcm_write:2127: write error: Input/output error Fixes: 269f399d ("ASoC: fsl_sai: Disable bit clock with transmitter") Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Link: https://lore.kernel.org/r/1695116533-23287-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Alex Bee authored
Add compatible for RK3128's S/PDIF. Signed-off-by: Alex Bee <knaerzche@gmail.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230829171647.187787-4-knaerzche@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 22 Sep, 2023 1 commit
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Miquel Raynal authored
While browsing/grepping in the sound core, I found that snd_dmaengine_set_config_from_dai_data() did not exist, in favor of snd_dmaengine_pcm_set_config_from_dai_data(). Fix the typo. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/r/20230922161547.594484-1-miquel.raynal@bootlin.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 19 Sep, 2023 7 commits
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Mark Brown authored
Merge series from Bard Liao <yung-chuan.liao@linux.intel.com>: Adding Es83x6 codec entry and HDMI-in capture support in MTL match table.
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Kuninori Morimoto authored
asoc_simple_probe() is used for both "DT probe" (A) and "platform probe" (B). It uses "goto err" when error case, but it is not needed for "platform probe" case (B). Thus it is using "return" directly there. static int asoc_simple_probe(...) { ^ if (...) { | ... (A) if (ret < 0) | goto err; v } else { ^ ... | if (ret < 0) (B) return -Exxx; v } ... ^ if (ret < 0) (C) goto err; v ... err: (D) simple_util_clean_reference(card); return ret; } Both case are using (C) part, and it calls (D) when err case. But (D) will do nothing for (B) case. Because of these behavior, current code itself is not wrong, but is confusable, and more, static analyzing tool will warning on (B) part (should use goto err). To avoid static analyzing tool warning, this patch uses "goto err" on (B) part. Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87o7hy7mlh.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Kuninori Morimoto authored
It should use "goto" instead of "return" Fixes: 5ca2ab45 ("ASoC: simple-card-utils: Add new system-clock-fixed flag") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/all/202309141205.ITZeDJxV-lkp@intel.com/ Closes: https://lore.kernel.org/all/202309151840.au9Aa2W4-lkp@intel.com/Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87v8c76jnz.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Pierre-Louis Bossart authored
One more missing SKU in the list. Closes: https://github.com/thesofproject/linux/issues/4543Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Chao Song <chao.song@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230919092125.1922468-1-yung-chuan.liao@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Pierre-Louis Bossart authored
The rule for the SoundWire tables is that the platforms with more devices need to be added first. We broke that rule with the Dell SKU 0B34, and caused the second amplifier for SKU 0AF3 to be ignored. The fix is simple, we need to move the single-amplifier entry after the two-amplifier one. Fixes: b62a1a83 ("ASoC: Intel: soc-acpi: add tables for Dell SKU 0B34") Closes: https://github.com/thesofproject/linux/issues/4559Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Chao Song <chao.song@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230919083606.1920202-1-yung-chuan.liao@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Balamurugan C authored
Adding HDMI-In capture via I2S feature support in MTL platform. Signed-off-by: Balamurugan C <balamurugan.c@intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230919091136.1922253-3-yung-chuan.liao@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Balamurugan C authored
Adding support for ES83x6 codec in MTL match table. Signed-off-by: Balamurugan C <balamurugan.c@intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230919091136.1922253-2-yung-chuan.liao@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 15 Sep, 2023 5 commits
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Peter Ujfalusi authored
All the fail paths during probe will free up the ops, on remove we should only free it if the probe was successful. Fixes: bc433fd7 ("ASoC: SOF: Add ops_free") Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Link: https://lore.kernel.org/r/20230915124015.19637-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Ranjani Sridharan authored
20s seems unnecessarily large for the DSP init timeout. This coupled with multiple FW boot attempts causes an excessive delay in the error path when booting in recovery mode. Reduce it to 0.5s and use the existing HDA_DSP_INIT_TIMEOUT_US. Link: https://github.com/thesofproject/linux/issues/4565Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://lore.kernel.org/r/20230915134153.9688-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Charles Keepax authored
The microphone and speaker shutters on cs42l43 can be configured to trigger from the same GPIO, in this case the current code returns an error as we attempt to request two IRQ handlers for the same IRQ. Fix this by always requesting the shutter IRQs with the IRQF_SHARED flag. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230915144300.120100-1-ckeepax@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Shengjiu Wang authored
The devm_clk_get() can return -EPROBE_DEFER error, modify the error code to be -EINVAL is not correct, which cause the -EPROBE_DEFER error is not correctly handled. This patch is to fix the return error code. Fixes: b86ef536 ("ASoC: fsl: Add Audio Mixer machine driver") Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Link: https://lore.kernel.org/r/1694757731-18308-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Chen Ni authored
Because of the potential failure of the devm_kstrdup(), the dl[i].codecs->name could be NULL. Therefore, we need to check it and return -ENOMEM in order to transfer the error. Fixes: 97030a43 ("ASoC: Intel: avs: Add HDAudio machine board") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Link: https://lore.kernel.org/r/20230915021344.3078-1-nichen@iscas.ac.cnSigned-off-by: Mark Brown <broonie@kernel.org>
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- 14 Sep, 2023 3 commits
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Peter Ujfalusi authored
In case the widget setup fails we should only decrement the core usage count if the sof_widget_free_unlocked() has not been called as part of the error handling. sof_widget_free_unlocked() calls snd_sof_dsp_core_put() and the additional core_put will cause imbalance in core usage count. Use the existing use_count_decremented to handle this issue. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230914124725.17397-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Bard Liao authored
available_fmt is a pointer. Fixes: 4fdef47a ("ASoC: SOF: ipc4-topology: Add new tokens for input/output pin format count") Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://lore.kernel.org/r/20230914132504.18463-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Chancel Liu authored
i.MX rpmsg sound cards work on codec slave mode. MCLK will be disabled by CPU DAI driver in hw_free(). Some codec requires MCLK present at power up/down sequence. So need to set ignore_pmdown_time to power down codec immediately before MCLK is turned off. Take WM8962 as an example, if MCLK is disabled before DAPM power down playback stream, FIFO error will arise in WM8962 which will have bad impact on playback next. Signed-off-by: Chancel Liu <chancel.liu@nxp.com> Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com> Link: https://lore.kernel.org/r/20230913102656.2966757-1-chancel.liu@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>
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- 13 Sep, 2023 6 commits
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Mark Brown authored
Merge series from Stefan Binding <sbinding@opensource.cirrus.com>: These patches fix 3 problems with hard reset: 1. Ensure a minimum reset pulse width 2. Deal with ACPI overriding the requested default GPIO state 3. Avoid a race condition when hard-resetting a SoundWire peripheral that is already enumerated
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Richard Fitzgerald authored
wm_adsp_read_ctl() and wm_adsp_write_ctl() must hold the cs_dsp pwr_lock mutex when calling cs_dsp_coeff_read_ctrl() and cs_dsp_coeff_write_ctrl(). Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230913160250.3700346-1-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Richard Fitzgerald authored
Change the logging of each algorithm from info level to debug level. On the original devices supported by this code there were typically only one or two algorithms in a firmware and one or two DSPs so this logging only used a small number of log lines. However, for the latest devices there could be 30-40 algorithms in a firmware and 8 DSPs being loaded in parallel, so using 300+ lines of log for information that isn't particularly important to have logged. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230913160523.3701189-1-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Richard Fitzgerald authored
In SoundWire mode leave hard RESET asserted when exiting probe, and wait for an UNATTACHED notification before deasserting RESET. If the boot state of the reset GPIO was deasserted it is possible that the SoundWire core had already enumerated the CS42L42 before cs42l42_sdw_probe() is called. When cs42l42_common_probe() hard resets the CS42L42 it triggers a race condition: 1) After cs42l42_sdw_probe() returns the thread that called it will call cs42l42_sdw_update_status() to report the last status recorded by the SoundWire core. 2) The SoundWire bus master will see a PING with the CS42L42 now reporting as unenumerated and will trigger the core SoundWire code to start enumerating CS42L42. These two threads are racing against each other. If (1) happens before (2) a stale ATTACHED notification will be reported to the cs42l42 driver when in fact the status of cs42l42 is now unattached. To avoid this race condition: - Leave RESET asserted on exit from cs42l42_sdw_probe(). This ensures that an UNATTACHED notification must be sent to the cs42l42 driver. If cs42l42 was already enumerated it will be seen to drop off the bus, causing an UNATTACH notification. If it was never enumerated the status is already UNATTACHED and this will be reported by thread (1). - When the UNATTACH notification is received, release RESET. This will cause CS42L42 to be enumerated and eventually report an ATTACHED notification. - The ATTACHED notification is now valid. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230913150012.604775-4-sbinding@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Richard Fitzgerald authored
The ACPI setting for a GPIO default state has higher priority than the flag passed to devm_gpiod_get_optional() so ACPI can override the GPIOD_OUT_LOW. Explicitly set the GPIO low when hard resetting. Although GPIOD_OUT_LOW can't be relied on this doesn't seem like a reason to stop passing it to devm_gpiod_get_optional(). So we still pass it to state our intent, but can deal with it having no effect. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230913150012.604775-3-sbinding@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>
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Richard Fitzgerald authored
The CS42L42 can accept very short reset pulses of a few microseconds but there's no reason to force a very short pulse. Allow a wide range for the usleep_range() so it can be relaxed about the choice of timing source. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230913150012.604775-2-sbinding@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>
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