diff options
| author | Ondrej Jirman <megi@xff.cz> | 2022-12-09 10:56:20 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-12-25 23:33:32 +0000 |
| commit | 44b54f54b41d36e8a2302a2c18a65268751c9067 (patch) | |
| tree | cc51f7b2a6c58baa984c10e8a2db3b6f98089639 | |
| parent | a5c26ee572d94337baf9c944b7b4881a2db62d37 (diff) | |
| download | lwn-44b54f54b41d36e8a2302a2c18a65268751c9067.tar.gz lwn-44b54f54b41d36e8a2302a2c18a65268751c9067.zip | |
ASoC: rt5640: Allow configuration of LOUT to mono differential mode
LOUT output can produce either single-ended stereo signals, or mono
differential signal. Some applications are wired to use LOUT in mono
differential mode. Allow to configure it via device property.
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Signed-off-by: Jarrah Gosbell <kernel@undef.tools>
Link: https://lore.kernel.org/r/20221209105621.39237-1-kernel@undef.tools
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/codecs/rt5640.c | 4 | ||||
| -rw-r--r-- | sound/soc/codecs/rt5640.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c index 708e55b7431a..9e6341a68c6b 100644 --- a/sound/soc/codecs/rt5640.c +++ b/sound/soc/codecs/rt5640.c @@ -2717,6 +2717,10 @@ static int rt5640_probe(struct snd_soc_component *component) snd_soc_component_update_bits(component, RT5640_IN1_IN2, RT5640_IN_DF2, RT5640_IN_DF2); + if (device_property_read_bool(component->dev, "realtek,lout-differential")) + snd_soc_component_update_bits(component, RT5640_DUMMY1, + RT5640_EN_LOUT_DF, RT5640_EN_LOUT_DF); + if (device_property_read_u32(component->dev, "realtek,dmic1-data-pin", &val) == 0 && val) { dmic1_data_pin = val - 1; diff --git a/sound/soc/codecs/rt5640.h b/sound/soc/codecs/rt5640.h index f58b88e3325b..9847a1ae01f4 100644 --- a/sound/soc/codecs/rt5640.h +++ b/sound/soc/codecs/rt5640.h @@ -1978,6 +1978,8 @@ #define RT5640_ZCD_HP_EN (0x1 << 15) /* General Control 1 (0xfa) */ +#define RT5640_EN_LOUT_DF (0x1 << 14) +#define RT5640_EN_LOUT_DF_SFT 14 #define RT5640_M_MONO_ADC_L (0x1 << 13) #define RT5640_M_MONO_ADC_L_SFT 13 #define RT5640_M_MONO_ADC_R (0x1 << 12) |