From 968b42069fe5dab362b623c6b8a1565709a12f5b Mon Sep 17 00:00:00 2001 From: Emanuele Ghidoli Date: Wed, 4 Jan 2023 15:04:12 +0100 Subject: [PATCH] ASoC: nau8822: add speaker Bridge Tied Output configuration Allow configuring the two loudspeaker outputs as a single Bridge Tied Load output getting higher output power. Signed-off-by: Emanuele Ghidoli Signed-off-by: Francesco Dolcini Link: https://lore.kernel.org/r/20230104140412.35575-4-francesco@dolcini.it Signed-off-by: Mark Brown --- sound/soc/codecs/nau8822.c | 9 +++++++++ sound/soc/codecs/nau8822.h | 9 +++++++++ 2 files changed, 18 insertions(+) diff --git a/sound/soc/codecs/nau8822.c b/sound/soc/codecs/nau8822.c index 1aef281..d5006d8 100644 --- a/sound/soc/codecs/nau8822.c +++ b/sound/soc/codecs/nau8822.c @@ -1056,6 +1056,7 @@ static const int update_reg[] = { static int nau8822_probe(struct snd_soc_component *component) { int i; + struct device_node *of_node = component->dev->of_node; /* * Set the update bit in all registers, that have one. This way all @@ -1066,6 +1067,14 @@ static int nau8822_probe(struct snd_soc_component *component) snd_soc_component_update_bits(component, update_reg[i], 0x100, 0x100); + /* Check property to configure the two loudspeaker outputs as + * a single Bridge Tied Load output + */ + if (of_property_read_bool(of_node, "nuvoton,spk-btl")) + snd_soc_component_update_bits(component, + NAU8822_REG_RIGHT_SPEAKER_CONTROL, + NAU8822_RSUBBYP, NAU8822_RSUBBYP); + return 0; } diff --git a/sound/soc/codecs/nau8822.h b/sound/soc/codecs/nau8822.h index 547ec05..646f6bb 100644 --- a/sound/soc/codecs/nau8822.h +++ b/sound/soc/codecs/nau8822.h @@ -187,6 +187,15 @@ /* NAU8822_REG_PLL_K3 (0x27) */ #define NAU8822_PLLK3_MASK 0x1FF +/* NAU8822_REG_RIGHT_SPEAKER_CONTROL (0x2B) */ +#define NAU8822_RMIXMUT 0x20 +#define NAU8822_RSUBBYP 0x10 + +#define NAU8822_RAUXRSUBG_SFT 1 +#define NAU8822_RAUXRSUBG_MASK 0x0E + +#define NAU8822_RAUXSMUT 0x01 + /* System Clock Source */ enum { NAU8822_CLK_MCLK, -- 2.7.4