From 44b54f54b41d36e8a2302a2c18a65268751c9067 Mon Sep 17 00:00:00 2001 From: Ondrej Jirman Date: Fri, 9 Dec 2022 10:56:20 +0000 Subject: [PATCH] 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 Signed-off-by: Jarrah Gosbell Link: https://lore.kernel.org/r/20221209105621.39237-1-kernel@undef.tools Signed-off-by: Mark Brown --- sound/soc/codecs/rt5640.c | 4 ++++ sound/soc/codecs/rt5640.h | 2 ++ 2 files changed, 6 insertions(+) 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) -- 2.11.0