Commits
Tzung-Bi Shih committed 6cd249cfad6
ASoC: max98357a: use mdelay for sdmode-delay max98357a_daiops_trigger() is possible to be called in atomic context if the .nonatomic flag is equal to 0 in the DAI links. When cancel_delayed_work_sync() in max98357a_daiops_trigger() is called in atomic context, kernel emits the following message: "BUG: sleeping function called from invalid context". According to the DT binding document, value less than or equal to 5ms of sdmod-delay should be sufficient to avoid the pop noise. Use mdelay (i.e. busy loop) for such low delay should be acceptable. Fixes: cec5b01f8f1c ("ASoC: max98357a: avoid speaker pop when playback startup") Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> Link: https://lore.kernel.org/r/20190708141901.68797-1-tzungbi@google.com Signed-off-by: Mark Brown <broonie@kernel.org>