[PATCH 2/2] ASoC: rt9120: Add the compatibility with rt9120s

[cy_huang]

From: ChiYuan Huang <cy_huang at richtek.com>

Use device id reg to be compatible with rt9120 and rt9120s.

Signed-off-by: ChiYuan Huang <cy_huang at richtek.com>
---
 sound/soc/codecs/rt9120.c | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/rt9120.c b/sound/soc/codecs/rt9120.c
index d007d00..6974705 100644
--- a/sound/soc/codecs/rt9120.c
+++ b/sound/soc/codecs/rt9120.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 
 #include <linux/bits.h>
+#include <linux/bitfield.h>
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
@@ -23,6 +24,7 @@
 #define RT9120_REG_ERRRPT	0x10
 #define RT9120_REG_MSVOL	0x20
 #define RT9120_REG_SWRESET	0x40
+#define RT9120_REG_INTERCFG	0x63
 #define RT9120_REG_INTERNAL0	0x65
 #define RT9120_REG_INTERNAL1	0x69
 #define RT9120_REG_UVPOPT	0x6C
@@ -49,7 +51,8 @@
 #define RT9120_DVDD_UVSEL_MASK	GENMASK(5, 4)
 #define RT9120_AUTOSYNC_MASK	BIT(6)
 
-#define RT9120_VENDOR_ID	0x4200
+#define RT9120_VENDOR_ID	0x42
+#define RT9120S_VENDOR_ID	0x43
 #define RT9120_RESET_WAITMS	20
 #define RT9120_CHIPON_WAITMS	20
 #define RT9120_AMPON_WAITMS	50
@@ -63,9 +66,16 @@
 				 SNDRV_PCM_FMTBIT_S24_LE |\
 				 SNDRV_PCM_FMTBIT_S32_LE)
 
+enum {
+	CHIP_IDX_RT9120 = 0,
+	CHIP_IDX_RT9120S,
+	CHIP_IDX_MAX
+};
+
 struct rt9120_data {
 	struct device *dev;
 	struct regmap *regmap;
+	int chip_idx;
 };
 
 /* 11bit [min,max,step] = [-103.9375dB, 24dB, 0.0625dB] */
@@ -151,7 +161,12 @@ static int rt9120_codec_probe(struct snd_soc_component *comp)
 	snd_soc_component_init_regmap(comp, data->regmap);
 
 	/* Internal setting */
-	snd_soc_component_write(comp, RT9120_REG_INTERNAL0, 0x04);
+	if (data->chip_idx == CHIP_IDX_RT9120S) {
+		snd_soc_component_write(comp, RT9120_REG_INTERCFG, 0xde);
+		snd_soc_component_write(comp, RT9120_REG_INTERNAL0, 0x66);
+	} else
+		snd_soc_component_write(comp, RT9120_REG_INTERNAL0, 0x04);
+
 	return 0;
 }
 
@@ -291,6 +306,7 @@ static const struct regmap_range rt9120_rd_yes_ranges[] = {
 	regmap_reg_range(0x20, 0x27),
 	regmap_reg_range(0x30, 0x38),
 	regmap_reg_range(0x3A, 0x40),
+	regmap_reg_range(0x63, 0x63),
 	regmap_reg_range(0x65, 0x65),
 	regmap_reg_range(0x69, 0x69),
 	regmap_reg_range(0x6C, 0x6C),
@@ -310,6 +326,7 @@ static const struct regmap_range rt9120_wr_yes_ranges[] = {
 	regmap_reg_range(0x30, 0x38),
 	regmap_reg_range(0x3A, 0x3D),
 	regmap_reg_range(0x40, 0x40),
+	regmap_reg_range(0x63, 0x63),
 	regmap_reg_range(0x65, 0x65),
 	regmap_reg_range(0x69, 0x69),
 	regmap_reg_range(0x6C, 0x6C),
@@ -402,8 +419,16 @@ static int rt9120_check_vendor_info(struct rt9120_data *data)
 	if (ret)
 		return ret;
 
-	if ((devid & RT9120_VID_MASK) != RT9120_VENDOR_ID) {
-		dev_err(data->dev, "DEVID not correct [0x%04x]\n", devid);
+	devid = FIELD_GET(RT9120_VID_MASK, devid);
+	switch (devid) {
+	case RT9120_VENDOR_ID:
+		data->chip_idx = CHIP_IDX_RT9120;
+		break;
+	case RT9120S_VENDOR_ID:
+		data->chip_idx = CHIP_IDX_RT9120S;
+		break;
+	default:
+		dev_err(data->dev, "DEVID not correct [0x%0x]\n", devid);
 		return -ENODEV;
 	}
 
-- 
2.7.4