ASoC: sof_es8336: reduce pop noise on speaker
The Speaker GPIO needs to be turned on slightly behind the codec turned on. It also need to be turned off slightly before the codec turned down. Current code uses delay in DAPM_EVENT to do it but the mdelay delays the DAPM itself and thus has no effect. A delayed_work is added to turn on the speaker. The Speaker is turned off in .trigger since trigger is called slightly before the DAPM events. Signed-off-by: NZhu Ning <zhuning@everest-semi.com> ------------ v1: cancel delayed work while disabling speaker. Link: https://lore.kernel.org/r/20221028020456.90286-1-zhuning0077@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>
Showing
想要评论请 注册 或 登录