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acb874a7c0
linux/sound/soc
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Tzung-Bi Shih acb874a7c0
ASoC: max98090: remove msleep in PLL unlocked workaround 
It was observed Baytrail-based chromebooks could cause continuous PLL
unlocked when using playback stream and capture stream simultaneously.
Specifically, starting a capture stream after started a playback stream.
As a result, the audio data could corrupt or turn completely silent.

As the datasheet suggested, the maximum PLL lock time should be 7 msec.
The workaround resets the codec softly by toggling SHDN off and on if
PLL failed to lock for 10 msec.  Notably, there is no suggested hold
time for SHDN off.

On Baytrail-based chromebooks, it would easily happen continuous PLL
unlocked if there is a 10 msec delay between SHDN off and on.  Removes
the msleep().

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20191122073114.219945-2-tzungbi@google.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-27 12:55:20 +00:00
..
adi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177 2019-05-30 11:29:19 -07:00
amd ASoC: AMD: Enable clk in startup intead of hw_params 2019-11-27 12:50:08 +00:00
atmel ASoC: atmel: atmel-pcm-pdc: remove snd_pcm_ops 2019-10-08 13:42:57 +01:00
au1x ASoC: au1x: dma: remove snd_pcm_ops 2019-10-08 13:43:14 +01:00
bcm ASoC: bcm: cygnus-pcm: remove snd_pcm_ops 2019-10-08 13:49:12 +01:00
cirrus ASoC: ep93xx: use devm_platform_ioremap_resource() to simplify code 2019-09-04 13:48:22 +01:00
codecs ASoC: max98090: remove msleep in PLL unlocked workaround 2019-11-27 12:55:20 +00:00
dwc ASoC: dwc: dwc-pcm: remove snd_pcm_ops 2019-10-08 13:48:35 +01:00
fsl ASoC: fsl_audmix: Add spin lock to protect tdms 2019-11-11 13:01:37 +00:00
generic ASoC: audio-graph: fixup graph_dai_link_of_dpcm() comment 2019-10-15 10:13:29 +01:00
hisilicon treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 340 2019-06-05 17:37:07 +02:00
img treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
intel ASoC: Fix Kconfig indentation 2019-11-20 17:16:57 +00:00
jz4740 ASoC: jz4740: Remove unused match variable 2019-10-09 10:58:01 +01:00
kirkwood Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.5 2019-11-06 16:29:34 +00:00
mediatek ASoC: mediatek: Check SND_SOC_CROS_EC_CODEC dependency 2019-10-23 17:45:34 +01:00
meson ASoC: meson: remove snd_pcm_ops 2019-10-08 13:47:40 +01:00
mxs ASoC: Remove dev_err() usage after platform_get_irq() 2019-08-02 12:12:31 +01:00
pxa ASoC: pxa: poodle: Spelling s/enpoints/endpoints/, s/connetion/connection/ 2019-10-25 11:07:15 +01:00
qcom ASoC: qcom: q6asm-dai: add support to flac decoder 2019-11-18 13:02:35 +00:00
rockchip Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.5 2019-11-06 16:29:34 +00:00
samsung ASoC: samsung: idma: remove snd_pcm_ops 2019-10-08 13:46:14 +01:00
sh Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.5 2019-11-06 16:29:34 +00:00
sirf ASoC: sirf: use devm_platform_ioremap_resource() to simplify code 2019-07-31 12:05:39 +01:00
sof ASoC: SOF: topology: Fix unload for SAI/ESAI 2019-11-27 12:50:37 +00:00
spear ASoC: spear: use devm_platform_ioremap_resource() to simplify code 2019-07-31 12:06:18 +01:00
sprd ASoC: sprd: sprd-pcm-dma: remove snd_pcm_ops 2019-10-08 13:44:40 +01:00
sti ASoC: Remove dev_err() usage after platform_get_irq() 2019-08-02 12:12:31 +01:00
stm Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.5 2019-11-06 16:29:34 +00:00
sunxi ASoC: sunxi: sun4i-codec: remove unneeded semicolon 2019-10-28 13:12:39 +00:00
tegra ASoC: tegra: disable rx_fifo after disable stream 2019-10-25 11:07:33 +01:00
ti ASoC: ti: davinci-mcasp: Use dma_request_chan() directly for channel request 2019-11-15 12:03:16 +00:00
txx9 ASoC: txx9: txx9aclc: remove snd_pcm_ops 2019-10-08 13:44:23 +01:00
uniphier ASoC: uniphier: aio-dma: remove snd_pcm_ops 2019-10-08 13:44:05 +01:00
ux500 ASoC: ux500: Remove redundant variable "status" 2019-11-04 13:22:25 +00:00
xilinx ASoC: xilinx: xlnx_formatter_pcm: remove snd_pcm_ops 2019-10-08 13:43:44 +01:00
xtensa ASoC: xtensa: xtfpga-i2s: remove snd_pcm_ops 2019-10-08 13:43:25 +01:00
zte ASoC: zx-tdm: remove redundant assignment to ts_width on error return path 2019-08-01 13:56:26 +01:00
Kconfig ASoC: remove w90x900/nuc900 platform drivers 2019-08-12 14:00:29 +01:00
Makefile ASoC: remove w90x900/nuc900 platform drivers 2019-08-12 14:00:29 +01:00
soc-ac97.c
soc-acpi.c ASoC: soc-acpi: fix implicit header use of module.h/export.h 2019-05-08 18:06:28 +09:00
soc-component.c ASoC: soc-component: tidyup snd_soc_pcm_component_new/free() parameter 2019-11-19 18:22:40 +00:00
soc-compress.c ASoC: soc-core: add for_each_rtd_components() and replace 2019-10-23 17:44:24 +01:00
soc-core.c ASoC: DMI long name - avoid to add board name if matches with product name 2019-11-22 19:54:50 +00:00
soc-dai.c ASoC: soc-dai: move snd_soc_dai_stream_valid() to soc-dai.c 2019-07-23 18:14:26 +01:00
soc-dapm.c ASoC: soc-core: add snd_soc_dapm_init() 2019-09-02 13:21:20 +01:00
soc-devres.c
soc-generic-dmaengine-pcm.c ASoC: dmaengine: Use dma_request_chan() directly for channel request 2019-11-15 12:02:58 +00:00
soc-io.c
soc-jack.c ASoC: add soc-component.c 2019-08-05 16:16:19 +01:00
soc-ops.c ASoC: soc-ops: use snd_soc_card_get_kcontrol() at snd_soc_limit_volume() 2019-10-03 14:37:20 +01:00
soc-pcm.c ASoC: soc-pcm: check symmetry before hw_params 2019-11-20 17:16:27 +00:00
soc-topology.c ASoC: soc-core: don't call snd_soc_dapm_new_dai_widgets() at snd_soc_register_dai() 2019-11-05 23:50:49 +00:00
soc-utils.c ASoC: soc-utils: remove snd_pcm_ops 2019-10-08 13:50:43 +01:00