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ALSA: hda: cs35l56: Enable low-power hibernation mode on i2c

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This can now be re-enabled as the sequence to reliably wake the device
has been implemented in the shared ASoC code.

This has a functional dependency on commit 3df761bdbc
("ASoC: cs35l56: Wake transactions need to be issued twice")

To protect against this, enabling hibernation is conditional on
CS35L56_WAKE_HOLD_TIME_US being defined, which indicates that the new
hibernation sequences are available.

Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20231113164029.1156669-1-rf@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Simon Trimmer 2023-11-13 16:40:29 +00:00 committed by Takashi Iwai
parent 713f040cd2
commit d02ef87db9
1 changed files with 4 additions and 0 deletions
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4
sound/pci/hda/cs35l56_hda_i2c.c
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@ -21,6 +21,10 @@ static int cs35l56_hda_i2c_probe(struct i2c_client *clt)
return -ENOMEM;
cs35l56->base.dev = &clt->dev;
#ifdef CS35L56_WAKE_HOLD_TIME_US
cs35l56->base.can_hibernate = true;
#endif
cs35l56->base.regmap = devm_regmap_init_i2c(clt, &cs35l56_regmap_i2c);
if (IS_ERR(cs35l56->base.regmap)) {
ret = PTR_ERR(cs35l56->base.regmap);