diff options
| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2023-04-11 18:25:26 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-04-12 19:34:33 +0300 |
| commit | f00abaddf0300bd9ca87918148a26bdb748129db (patch) | |
| tree | cc90669749b88641f8bc402499e98c8ce30f706a /sound/soc/codecs/cs35l56.c | |
| parent | 7816e3407110d887726687740aa18c9ce8eeb0d2 (diff) | |
| download | linux-f00abaddf0300bd9ca87918148a26bdb748129db.tar.xz | |
ASoC: cs35l56: Always wait for firmware boot in runtime-resume
When we are resuming from a system suspend the CS35L56 has probably
been hard reset (usually a power-on reset). So we must wait for the
firmware to boot. On SoundWire we also need it to re-initialize before
we can read the registers to check the CS35L56 state.
The simplest way to handle this is for runtime-resume to always wait
for firmware boot. If the firmware is already booted the overhead is
only one register read.
The system-resume will have to runtime-resume the driver anyway before
attempting any register access. So this will automatically include the
wait for initialization on SoundWire.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230411152528.329803-5-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs35l56.c')
| -rw-r--r-- | sound/soc/codecs/cs35l56.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c index 14cdbf5fd523..372b07fef827 100644 --- a/sound/soc/codecs/cs35l56.c +++ b/sound/soc/codecs/cs35l56.c @@ -1108,10 +1108,8 @@ int cs35l56_runtime_resume_common(struct cs35l56_private *cs35l56) unsigned int val; int ret; - if (!cs35l56->can_hibernate) { - regcache_cache_only(cs35l56->regmap, false); + if (!cs35l56->can_hibernate) goto out_sync; - } if (!cs35l56->sdw_peripheral) { /* @@ -1126,6 +1124,7 @@ int cs35l56_runtime_resume_common(struct cs35l56_private *cs35l56) CS35L56_CONTROL_PORT_READY_US + 400); } +out_sync: regcache_cache_only(cs35l56->regmap, false); ret = cs35l56_wait_for_firmware_boot(cs35l56); @@ -1138,7 +1137,6 @@ int cs35l56_runtime_resume_common(struct cs35l56_private *cs35l56) if (ret) goto err; -out_sync: /* BOOT_DONE will be 1 if the amp reset */ regmap_read(cs35l56->regmap, CS35L56_IRQ1_EINT_4, &val); if (val & CS35L56_OTP_BOOT_DONE_MASK) { |