From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
stable inclusion from stable-5.10.50 commit 16674ae3b2377852a200209be7e755a7cf1f1785 bugzilla: 174522 https://gitee.com/openeuler/kernel/issues/I4DNFY
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 30e102dab5fad1db71684f8ac5e1ac74e49da06d ]
The intent of the status check on resume was to verify if a SoundWire peripheral reported ATTACHED before waiting for the initialization to complete. This is required to avoid timeouts that will happen with 'ghost' devices that are exposed in the platform firmware but are not populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to another error, the resume operation never timed out, but the volume settings were not properly restored.
BugLink: https://github.com/thesofproject/linux/issues/2908 BugLink: https://github.com/thesofproject/linux/issues/2637 Fixes: a87a6653a28c0 ('ASoC: rt1308-sdw: add rt1308 SdW amplifier driver') Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com Reviewed-by: Bard Liao bard.liao@intel.com Link: https://lore.kernel.org/r/20210607222239.582139-4-pierre-louis.bossart@linux... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.com --- sound/soc/codecs/rt1308-sdw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c index c2621b0afe6c..31daa749c3db 100644 --- a/sound/soc/codecs/rt1308-sdw.c +++ b/sound/soc/codecs/rt1308-sdw.c @@ -709,7 +709,7 @@ static int __maybe_unused rt1308_dev_resume(struct device *dev) struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); unsigned long time;
- if (!rt1308->hw_init) + if (!rt1308->first_hw_init) return 0;
if (!slave->unattach_request)