From: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>
If the hardware uses SPI_MOSI, I2C_SCL or I2C_SDA as the wake source
the bus activity of sending HIBERNATE_NOW will wake up the amps that
were already put into hibernate.
ALLOW_AUTO_HIBERNATE tells the firmware to hibernate itself after a
timeout of a few seconds, giving the driver instances time to send this
before any amps have gone into hibernate.
Signed-off-by: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/cs35l56-shared.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c
index 01b6fa97b36b..68dc93b82789 100644
--- a/sound/soc/codecs/cs35l56-shared.c
+++ b/sound/soc/codecs/cs35l56-shared.c
@@ -439,7 +439,7 @@ EXPORT_SYMBOL_NS_GPL(cs35l56_is_fw_reload_needed, SND_SOC_CS35L56_SHARED);
static const struct reg_sequence cs35l56_hibernate_seq[] = {
/* This must be the last register access */
- REG_SEQ0(CS35L56_DSP_VIRTUAL1_MBOX_1, CS35L56_MBOX_CMD_HIBERNATE_NOW),
+ REG_SEQ0(CS35L56_DSP_VIRTUAL1_MBOX_1, CS35L56_MBOX_CMD_ALLOW_AUTO_HIBERNATE),
};
static const struct reg_sequence cs35l56_hibernate_wake_seq[] = {
@@ -473,12 +473,6 @@ int cs35l56_runtime_suspend_common(struct cs35l56_base *cs35l56_base)
return 0;
}
- /*
- * Enable auto-hibernate. If it is woken by some other wake source
- * it will automatically return to hibernate.
- */
- cs35l56_mbox_send(cs35l56_base, CS35L56_MBOX_CMD_ALLOW_AUTO_HIBERNATE);
-
/*
* Must enter cache-only first so there can't be any more register
* accesses other than the controlled hibernate sequence below.
@@ -545,11 +539,12 @@ int cs35l56_runtime_resume_common(struct cs35l56_base *cs35l56_base, bool is_sou
return 0;
err:
- regmap_write(cs35l56_base->regmap, CS35L56_DSP_VIRTUAL1_MBOX_1,
- CS35L56_MBOX_CMD_HIBERNATE_NOW);
-
regcache_cache_only(cs35l56_base->regmap, true);
+ regmap_multi_reg_write_bypassed(cs35l56_base->regmap,
+ cs35l56_hibernate_seq,
+ ARRAY_SIZE(cs35l56_hibernate_seq));
+
return ret;
}
EXPORT_SYMBOL_NS_GPL(cs35l56_runtime_resume_common, SND_SOC_CS35L56_SHARED);
--
2.30.2
