ASoC: cs35l56: Disable low-power hibernation mode
PATCH 1/1 ASoC: cs35l56: Disable low-power hibernation mode
commit 18789be8e0d9fbb78b2290dcf93f500726ed19f0 upstream. Please apply to 6.4 and 6.5.
Do not allow the CS35L56 to be put into its lowest power "hibernation" mode. This only affects I2C because "hibernation" is already disabled on SPI and SoundWire.
Recent firmwares need a different wake-up sequence. Until that sequence has been specified, the chip "hibernation" mode must be disabled otherwise it can intermittently fail to wake.
Backport note: This is the same change as upstream commit, to delete one line, but the upstream commit would not apply cleanly on older branches because of minor differences to the surrounding code.
--- sound/soc/codecs/cs35l56-i2c.c | 1 - 1 file changed, 1 deletion(-)
sound/soc/codecs/cs35l56-i2c.c +0 -1
@@ -27,7 +27,6 @@ static int cs35l56_i2c_probe(struct i2c_client *client)return -ENOMEM ; cs35l56->dev = dev; - cs35l56->can_hibernate = true;i2c_set_clientdata (client, cs35l56); cs35l56->regmap =devm_regmap_init_i2c (client, regmap_config);
Signature · 1 line
2.30.2
Sasha Levin
maintainerQuoted 7 lines · Richard Fitzgerald
commit
18789be8e0d9fbb78b2290dcf93f500726ed19f0upstream. Please apply to 6.4 and 6.5.Do not allow the CS35L56 to be put into its lowest power "hibernation" mode. This only affects I2C because "hibernation" is already disabled on SPI and SoundWire.
Quoted 7 lines
Recent firmwares need a different wake-up sequence. Until that sequence has been specified, the chip "hibernation" mode must be disabled otherwise it can intermittently fail to wake.
Backport note: This is the same change as upstream commit, to delete one line, but the upstream commit would not apply cleanly on older branches because of minor differences to the surrounding code.
Queued up for 6.5. 6.4 is EOL.
Signature · 2 lines
Thanks, Sasha