48 lines
1.7 KiB
Diff
48 lines
1.7 KiB
Diff
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From ae4151df6fa0d0bda82fea84c4c6b3eb73d8707d Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megi@xff.cz>
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Date: Tue, 19 Jul 2022 19:50:59 +0200
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Subject: [PATCH 384/389] ASoC: rt5640: Allow configuration of LOUT to mono
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differential mode
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LOUT output can produce either single-ended stereo signals, or mono
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differential signal. Some applications are wired to use LOUT in mono
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differential mode. Allow to configure it via device property.
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Signed-off-by: Ondrej Jirman <megi@xff.cz>
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---
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sound/soc/codecs/rt5640.c | 4 ++++
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sound/soc/codecs/rt5640.h | 2 ++
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2 files changed, 6 insertions(+)
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diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
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index 0f8e6dd214b0..18e01949f20e 100644
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--- a/sound/soc/codecs/rt5640.c
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+++ b/sound/soc/codecs/rt5640.c
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@@ -2717,6 +2717,10 @@ static int rt5640_probe(struct snd_soc_component *component)
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snd_soc_component_update_bits(component, RT5640_IN1_IN2,
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RT5640_IN_DF2, RT5640_IN_DF2);
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+ if (device_property_read_bool(component->dev, "realtek,lout-differential"))
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+ snd_soc_component_update_bits(component, RT5640_DUMMY1,
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+ RT5640_EN_LOUT_DF, RT5640_EN_LOUT_DF);
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+
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if (device_property_read_u32(component->dev, "realtek,dmic1-data-pin",
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&val) == 0 && val) {
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dmic1_data_pin = val - 1;
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diff --git a/sound/soc/codecs/rt5640.h b/sound/soc/codecs/rt5640.h
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index f58b88e3325b..9847a1ae01f4 100644
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--- a/sound/soc/codecs/rt5640.h
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+++ b/sound/soc/codecs/rt5640.h
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@@ -1978,6 +1978,8 @@
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#define RT5640_ZCD_HP_EN (0x1 << 15)
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/* General Control 1 (0xfa) */
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+#define RT5640_EN_LOUT_DF (0x1 << 14)
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+#define RT5640_EN_LOUT_DF_SFT 14
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#define RT5640_M_MONO_ADC_L (0x1 << 13)
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#define RT5640_M_MONO_ADC_L_SFT 13
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#define RT5640_M_MONO_ADC_R (0x1 << 12)
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--
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2.35.3
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