From f32a2bcbc092d60ba8a1b00a22607b220d53a25e Mon Sep 17 00:00:00 2001 From: Simon Trimmer Date: Fri, 21 Jul 2023 14:21:17 +0100 Subject: ASoC: cs35l56: Make common function for control port wait Move the waits for CS35L56_CONTROL_PORT_READY_US into a common function, and also allow a wider range of allowed wait times. Signed-off-by: Simon Trimmer Signed-off-by: Richard Fitzgerald Acked-by: Mark Brown Link: https://lore.kernel.org/r/20230721132120.5523-9-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- sound/soc/codecs/cs35l56-shared.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'sound') diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c index 8a98070ece5e..4e3becb9581d 100644 --- a/sound/soc/codecs/cs35l56-shared.c +++ b/sound/soc/codecs/cs35l56-shared.c @@ -244,6 +244,13 @@ int cs35l56_wait_for_firmware_boot(struct cs35l56_base *cs35l56_base) } EXPORT_SYMBOL_NS_GPL(cs35l56_wait_for_firmware_boot, SND_SOC_CS35L56_SHARED); +void cs35l56_wait_control_port_ready(void) +{ + /* Wait for control port to be ready (datasheet tIRS). */ + usleep_range(CS35L56_CONTROL_PORT_READY_US, 2 * CS35L56_CONTROL_PORT_READY_US); +} +EXPORT_SYMBOL_NS_GPL(cs35l56_wait_control_port_ready, SND_SOC_CS35L56_SHARED); + void cs35l56_wait_min_reset_pulse(void) { /* Satisfy minimum reset pulse width spec */ @@ -270,7 +277,7 @@ void cs35l56_system_reset(struct cs35l56_base *cs35l56_base, bool is_soundwire) if (is_soundwire) return; - usleep_range(CS35L56_CONTROL_PORT_READY_US, CS35L56_CONTROL_PORT_READY_US + 400); + cs35l56_wait_control_port_ready(); regcache_cache_only(cs35l56_base->regmap, false); } EXPORT_SYMBOL_NS_GPL(cs35l56_system_reset, SND_SOC_CS35L56_SHARED); @@ -481,8 +488,7 @@ int cs35l56_runtime_resume_common(struct cs35l56_base *cs35l56_base, bool is_sou cs35l56_hibernate_wake_seq, ARRAY_SIZE(cs35l56_hibernate_wake_seq)); - usleep_range(CS35L56_CONTROL_PORT_READY_US, - CS35L56_CONTROL_PORT_READY_US + 400); + cs35l56_wait_control_port_ready(); } out_sync: @@ -556,9 +562,7 @@ int cs35l56_hw_init(struct cs35l56_base *cs35l56_base) if (!cs35l56_base->reset_gpio) regmap_read(cs35l56_base->regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, &devid); - /* Wait for control port to be ready (datasheet tIRS). */ - usleep_range(CS35L56_CONTROL_PORT_READY_US, - CS35L56_CONTROL_PORT_READY_US + 400); + cs35l56_wait_control_port_ready(); /* * The HALO_STATE register is in different locations on Ax and B0 -- cgit v1.2.3