[PATCH v2] ASoC: rt5682s: Add LDO output selection for dacref

[PATCH v2] ASoC: rt5682s: Add LDO output selection for dacref

[Jack Yu]

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Add LDO output selection for dacref.

Signed-off-by: Jack Yu <jack.yu@realtek.com>
---
 include/sound/rt5682s.h    |  8 ++++++++
 sound/soc/codecs/rt5682s.c | 23 +++++++++++++++++++++++
 sound/soc/codecs/rt5682s.h |  7 +++++++
 3 files changed, 38 insertions(+)

diff --git a/include/sound/rt5682s.h b/include/sound/rt5682s.h
index 66ca0c75b914..006e6003d11c 100644
--- a/include/sound/rt5682s.h
+++ b/include/sound/rt5682s.h
@@ -31,6 +31,13 @@ enum rt5682s_dai_clks {
 	RT5682S_DAI_NUM_CLKS,
 };
 
+enum {
+	RT5682S_LDO_1_607V,
+	RT5682S_LDO_1_5V,
+	RT5682S_LDO_1_406V,
+	RT5682S_LDO_1_731V,
+};
+
 struct rt5682s_platform_data {
 	enum rt5682s_dmic1_data_pin dmic1_data_pin;
 	enum rt5682s_dmic1_clk_pin dmic1_clk_pin;
@@ -38,6 +45,7 @@ struct rt5682s_platform_data {
 	unsigned int dmic_clk_rate;
 	unsigned int dmic_delay;
 	unsigned int amic_delay;
+	unsigned int ldo_dacref;
 	bool dmic_clk_driving_high;
 
 	const char *dai_clk_names[RT5682S_DAI_NUM_CLKS];
diff --git a/sound/soc/codecs/rt5682s.c b/sound/soc/codecs/rt5682s.c
index c261c33c4be7..3322056bbb3b 100644
--- a/sound/soc/codecs/rt5682s.c
+++ b/sound/soc/codecs/rt5682s.c
@@ -2971,6 +2971,8 @@ static int rt5682s_parse_dt(struct rt5682s_priv *rt5682s, struct device *dev)
 		&rt5682s->pdata.dmic_delay);
 	device_property_read_u32(dev, "realtek,amic-delay-ms",
 		&rt5682s->pdata.amic_delay);
+	device_property_read_u32(dev, "realtek,ldo-sel",
+		&rt5682s->pdata.ldo_dacref);
 
 	if (device_property_read_string_array(dev, "clock-output-names",
 					      rt5682s->pdata.dai_clk_names,
@@ -3250,6 +3252,27 @@ static int rt5682s_i2c_probe(struct i2c_client *i2c)
 		break;
 	}
 
+	/* LDO output voltage control */
+	switch (rt5682s->pdata.ldo_dacref) {
+	case RT5682S_LDO_1_607V:
+		break;
+	case RT5682S_LDO_1_5V:
+		regmap_update_bits(rt5682s->regmap, RT5682S_BIAS_CUR_CTRL_7,
+			RT5682S_LDO_DACREF_MASK, RT5682S_LDO_DACREF_1_5V);
+		break;
+	case RT5682S_LDO_1_406V:
+		regmap_update_bits(rt5682s->regmap, RT5682S_BIAS_CUR_CTRL_7,
+			RT5682S_LDO_DACREF_MASK, RT5682S_LDO_DACREF_1_406V);
+		break;
+	case RT5682S_LDO_1_731V:
+		regmap_update_bits(rt5682s->regmap, RT5682S_BIAS_CUR_CTRL_7,
+			RT5682S_LDO_DACREF_MASK, RT5682S_LDO_DACREF_1_731V);
+		break;
+	default:
+		dev_warn(&i2c->dev, "invalid LDO output setting.\n");
+		break;
+	}
+
 	INIT_DELAYED_WORK(&rt5682s->jack_detect_work, rt5682s_jack_detect_handler);
 	INIT_DELAYED_WORK(&rt5682s->jd_check_work, rt5682s_jd_check_handler);
 
diff --git a/sound/soc/codecs/rt5682s.h b/sound/soc/codecs/rt5682s.h
index 1d79d432d0d8..67f42898de96 100644
--- a/sound/soc/codecs/rt5682s.h
+++ b/sound/soc/codecs/rt5682s.h
@@ -1263,6 +1263,13 @@
 #define RT5682S_JDH_NO_PLUG			(0x1 << 4)
 #define RT5682S_JDH_PLUG			(0x0 << 4)
 
+/* Bias current control 7  (0x0110) */
+#define RT5682S_LDO_DACREF_MASK			(0x3 << 4)
+#define RT5682S_LDO_DACREF_1_607V		(0x0 << 4)
+#define RT5682S_LDO_DACREF_1_5V			(0x1 << 4)
+#define RT5682S_LDO_DACREF_1_406V		(0x2 << 4)
+#define RT5682S_LDO_DACREF_1_731V		(0x3 << 4)
+
 /* Charge Pump Internal Register1 (0x0125) */
 #define RT5682S_CP_CLK_HP_MASK			(0x3 << 4)
 #define RT5682S_CP_CLK_HP_100KHZ		(0x0 << 4)
-- 
2.34.1


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Re: [PATCH v2] ASoC: rt5682s: Add LDO output selection for dacref

[Mark Brown]

On Mon, 13 Nov 2023 10:37:15 +0000, Jack Yu wrote:
> Add LDO output selection for dacref.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: rt5682s: Add LDO output selection for dacref
      commit: 577d71544871b075a25a09e4c5aa31008850c0a8

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark