From: Hector Martin marcan@marcan.st
[ Upstream commit 1c4f29ec878bbf1cc0a1eb54ae7da5ff98e19641 ]
The register default is 0x28 per the datasheet, and the amp gain field is supposed to be shifted left by one. With the wrong default, the ALSA controls lie about the power-up state. With the wrong shift, we get only half the gain we expect.
Signed-off-by: Hector Martin marcan@marcan.st Fixes: 827ed8a0fa50 ("ASoC: tas2764: Add the driver for the TAS2764") Signed-off-by: Martin PoviĊĦer povik+lin@cutebit.org Link: https://lore.kernel.org/r/20220630075135.2221-4-povik+lin@cutebit.org Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/tas2764.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c index 33d7ce78aced..37588804a6b5 100644 --- a/sound/soc/codecs/tas2764.c +++ b/sound/soc/codecs/tas2764.c @@ -541,7 +541,7 @@ static DECLARE_TLV_DB_SCALE(tas2764_playback_volume, -10050, 50, 1); static const struct snd_kcontrol_new tas2764_snd_controls[] = { SOC_SINGLE_TLV("Speaker Volume", TAS2764_DVC, 0, TAS2764_DVC_MAX, 1, tas2764_playback_volume), - SOC_SINGLE_TLV("Amp Gain Volume", TAS2764_CHNL_0, 0, 0x14, 0, + SOC_SINGLE_TLV("Amp Gain Volume", TAS2764_CHNL_0, 1, 0x14, 0, tas2764_digital_tlv), };
@@ -566,7 +566,7 @@ static const struct reg_default tas2764_reg_defaults[] = { { TAS2764_SW_RST, 0x00 }, { TAS2764_PWR_CTRL, 0x1a }, { TAS2764_DVC, 0x00 }, - { TAS2764_CHNL_0, 0x00 }, + { TAS2764_CHNL_0, 0x28 }, { TAS2764_TDM_CFG0, 0x09 }, { TAS2764_TDM_CFG1, 0x02 }, { TAS2764_TDM_CFG2, 0x0a },