From 3df761bdbc8bc1bb679b5a4d4e068728d930a552 Mon Sep 17 00:00:00 2001 From: Simon Trimmer Date: Fri, 6 Oct 2023 12:10:37 +0100 Subject: ASoC: cs35l56: Wake transactions need to be issued twice As the dummy wake is a toggling signal (either I2C or SPI activity) it is not guaranteed to meet the minimum asserted hold time for a wake signal. In this case the wake must guarantee rising edges separated by at least the minimum hold time. Signed-off-by: Simon Trimmer Signed-off-by: Richard Fitzgerald Link: https://lore.kernel.org/r/20231006111039.101914-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- include/sound/cs35l56.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h index 762b96b29211..8c18e8b6d27d 100644 --- a/include/sound/cs35l56.h +++ b/include/sound/cs35l56.h @@ -243,6 +243,7 @@ #define CS35L56_HALO_STATE_POLL_US 1000 #define CS35L56_HALO_STATE_TIMEOUT_US 50000 #define CS35L56_RESET_PULSE_MIN_US 1100 +#define CS35L56_WAKE_HOLD_TIME_US 1000 #define CS35L56_SDW1_PLAYBACK_PORT 1 #define CS35L56_SDW1_CAPTURE_PORT 3 -- cgit