[PATCH v6 3/5] ASoC: meson: g12a-toacodec: Add S4 tocodec driver

Jiebing Chen via B4 Relay
2026-01-26T06:02:22Z

From: Jiebing Chen <jiebing.chen@amlogic.com>

The S4 requires additional clock control bits to be turn on while enabled.
The S4 has 8 TDM lanes, instead of 4 on previous SoC.
Update the widget accordingly.

Signed-off-by: Jiebing Chen <jiebing.chen@amlogic.com>
---
sound/soc/meson/g12a-toacodec.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)

diff --git a/sound/soc/meson/g12a-toacodec.c b/sound/soc/meson/g12a-toacodec.c
index a95375b53f0a..a7f9ac2d08f7 100644
--- a/sound/soc/meson/g12a-toacodec.c
+++ b/sound/soc/meson/g12a-toacodec.c
@@ -41,6 +41,9 @@
#define CTRL0_BCLK_SEL_LSB 4
#define CTRL0_MCLK_SEL GENMASK(2, 0)

+#define CTRL0_BCLK_ENABLE_SHIFT 30
+#define CTRL0_MCLK_ENABLE_SHIFT 29
+
#define TOACODEC_OUT_CHMAX 2

struct g12a_toacodec {
@@ -141,6 +144,13 @@ static const struct snd_soc_dapm_widget sm1_toacodec_widgets[] = {
&g12a_toacodec_out_enable),
};

+static const struct snd_soc_dapm_widget s4_toacodec_widgets[] = {
+ SND_SOC_DAPM_MUX("SRC", TOACODEC_CTRL0, CTRL0_BCLK_ENABLE_SHIFT, 0,
+ &sm1_toacodec_mux),
+ SND_SOC_DAPM_SWITCH("OUT EN", TOACODEC_CTRL0, CTRL0_MCLK_ENABLE_SHIFT, 0,
+ &g12a_toacodec_out_enable),
+};
+
static int g12a_toacodec_input_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -234,6 +244,10 @@ static const struct snd_kcontrol_new sm1_toacodec_controls[] = {
SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_SM1, 3, 0),
};

+static const struct snd_kcontrol_new s4_toacodec_controls[] = {
+ SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_SM1, 7, 0),
+};
+
static const struct snd_soc_component_driver g12a_toacodec_component_drv = {
.probe = g12a_toacodec_component_probe,
.controls = g12a_toacodec_controls,
@@ -256,6 +270,17 @@ static const struct snd_soc_component_driver sm1_toacodec_component_drv = {
.endianness = 1,
};

+static const struct snd_soc_component_driver s4_toacodec_component_drv = {
+ .probe = sm1_toacodec_component_probe,
+ .controls = s4_toacodec_controls,
+ .num_controls = ARRAY_SIZE(s4_toacodec_controls),
+ .dapm_widgets = s4_toacodec_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(s4_toacodec_widgets),
+ .dapm_routes = g12a_toacodec_routes,
+ .num_dapm_routes = ARRAY_SIZE(g12a_toacodec_routes),
+ .endianness = 1,
+};
+
static const struct regmap_config g12a_toacodec_regmap_cfg = {
.reg_bits = 32,
.val_bits = 32,
@@ -276,6 +301,13 @@ static const struct g12a_toacodec_match_data sm1_toacodec_match_data = {
.field_bclk_sel = REG_FIELD(TOACODEC_CTRL0, 4, 6),
};

+static const struct g12a_toacodec_match_data s4_toacodec_match_data = {
+ .component_drv = &s4_toacodec_component_drv,
+ .field_dat_sel = REG_FIELD(TOACODEC_CTRL0, 19, 20),
+ .field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 12, 14),
+ .field_bclk_sel = REG_FIELD(TOACODEC_CTRL0, 4, 6),
+};
+
static const struct of_device_id g12a_toacodec_of_match[] = {
{
.compatible = "amlogic,g12a-toacodec",
@@ -285,6 +317,10 @@ static const struct of_device_id g12a_toacodec_of_match[] = {
.compatible = "amlogic,sm1-toacodec",
.data = &sm1_toacodec_match_data,
},
+ {
+ .compatible = "amlogic,s4-toacodec",
+ .data = &s4_toacodec_match_data,
+ },
{}
};
MODULE_DEVICE_TABLE(of, g12a_toacodec_of_match);

--
2.52.0