Messages in this thread Patch in this message | | | From | Richard Fitzgerald <> | Subject | [PATCH RESEND] ALSA: hda: cs35l56: Enable low-power hibernation mode on i2c | Date | Mon, 13 Nov 2023 16:40:29 +0000 |
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From: Simon Trimmer <simont@opensource.cirrus.com>
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> --- sound/pci/hda/cs35l56_hda_i2c.c | 4 ++++ 1 file changed, 4 insertions(+)
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); -- 2.30.2
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