This is a note to let you know that I've just added the patch titled ASoC: rt715-sdw: use first_hw_init flag on resume to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: asoc-rt715-sdw-use-first_hw_init-flag-on-resume.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit dd97428ba950135c153607a269ed59dfdd6d2332 Author: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Date: Mon Jun 7 17:22:34 2021 -0500 ASoC: rt715-sdw: use first_hw_init flag on resume [ Upstream commit dbc07517ab173688ef11234d1099bc1e24e4f14b ] 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: d1ede0641b05e ('ASoC: rt715: add RT715 codec driver') Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx> Reviewed-by: Bard Liao <bard.liao@xxxxxxxxx> Link: https://lore.kernel.org/r/20210607222239.582139-11-pierre-louis.bossart@xxxxxxxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/sound/soc/codecs/rt715-sdw.c b/sound/soc/codecs/rt715-sdw.c index 81a1dd77b6f6..a7b21b03c08b 100644 --- a/sound/soc/codecs/rt715-sdw.c +++ b/sound/soc/codecs/rt715-sdw.c @@ -541,7 +541,7 @@ static int __maybe_unused rt715_dev_resume(struct device *dev) struct rt715_priv *rt715 = dev_get_drvdata(dev); unsigned long time; - if (!rt715->hw_init) + if (!rt715->first_hw_init) return 0; if (!slave->unattach_request)