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authorSimon Trimmer <simont@opensource.cirrus.com>2023-11-13 16:40:29 +0000
committerTakashi Iwai <tiwai@suse.de>2023-11-13 17:44:30 +0100
commitd02ef87db9d6137fc2a98231b92f24ead4f7966d (patch)
tree8331a1610abb5eed915b2c9cce1f04720477156e /sound
parent713f040cd22285fcc506f40a0d259566e6758c3c (diff)
ALSA: hda: cs35l56: Enable low-power hibernation mode on i2c
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 3df761bdbc8b ("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>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/cs35l56_hda_i2c.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/pci/hda/cs35l56_hda_i2c.c b/sound/pci/hda/cs35l56_hda_i2c.c
index 757a4d193e0f..a9ef6d86de83 100644
--- a/sound/pci/hda/cs35l56_hda_i2c.c
+++ b/sound/pci/hda/cs35l56_hda_i2c.c
@@ -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);