[RFC PATCH v2] ASoC: meson: g12a-toacodec: rework the definition of bits

[Jan Dakinevich]

There is a lot of defines, but almost all of them are not used. Lets
rework them:

 - keep separate the definition for different platforms to make easier
   checking that they match documentation.

 - use LSB/MSB sufixes for uniformity.

 - don't use hard-coded values for already declared defines.

Signed-off-by: Jan Dakinevich <jan.dakinevich at salutedevices.com>
---
Links:

 [1] https://lore.kernel.org/lkml/20240314232201.2102178-1-jan.dakinevich@salutedevices.com/

Changes v1 -> v2:
 - Detached from v1's series (patch 7).
 - Fixed my wrong understanding of SOC_SINGLE's input parameters.

 sound/soc/meson/g12a-toacodec.c | 79 ++++++++++++++++++++-------------
 1 file changed, 49 insertions(+), 30 deletions(-)

diff --git a/sound/soc/meson/g12a-toacodec.c b/sound/soc/meson/g12a-toacodec.c
index 531bb8707a3e..22181f4bab72 100644
--- a/sound/soc/meson/g12a-toacodec.c
+++ b/sound/soc/meson/g12a-toacodec.c
@@ -20,26 +20,37 @@
 #define G12A_TOACODEC_DRV_NAME "g12a-toacodec"
 
 #define TOACODEC_CTRL0			0x0
-#define  CTRL0_ENABLE_SHIFT		31
-#define  CTRL0_DAT_SEL_SM1_MSB		19
-#define  CTRL0_DAT_SEL_SM1_LSB		18
-#define  CTRL0_DAT_SEL_MSB		15
-#define  CTRL0_DAT_SEL_LSB		14
-#define  CTRL0_LANE_SEL_SM1		16
-#define  CTRL0_LANE_SEL			12
-#define  CTRL0_LRCLK_SEL_SM1_MSB	14
-#define  CTRL0_LRCLK_SEL_SM1_LSB	12
-#define  CTRL0_LRCLK_SEL_MSB		9
-#define  CTRL0_LRCLK_SEL_LSB		8
-#define  CTRL0_LRCLK_INV_SM1		BIT(10)
-#define  CTRL0_BLK_CAP_INV_SM1		BIT(9)
-#define  CTRL0_BLK_CAP_INV		BIT(7)
-#define  CTRL0_BCLK_O_INV_SM1		BIT(8)
-#define  CTRL0_BCLK_O_INV		BIT(6)
-#define  CTRL0_BCLK_SEL_SM1_MSB		6
-#define  CTRL0_BCLK_SEL_MSB		5
-#define  CTRL0_BCLK_SEL_LSB		4
-#define  CTRL0_MCLK_SEL			GENMASK(2, 0)
+
+/* Common bits */
+#define CTRL0_ENABLE_SHIFT		31
+#define CTRL0_MCLK_SEL			GENMASK(2, 0)
+
+/* G12A bits */
+#define CTRL0_DAT_SEL_G12A_MSB		15
+#define CTRL0_DAT_SEL_G12A_LSB		14
+#define CTRL0_LANE_SEL_G12A_MSB		13
+#define CTRL0_LANE_SEL_G12A_LSB		12
+#define CTRL0_LANE_SEL_G12A_MAX		3
+#define CTRL0_LRCLK_SEL_G12A_MSB	9
+#define CTRL0_LRCLK_SEL_G12A_LSB	8
+#define CTRL0_BLK_CAP_INV_G12A		BIT(7)
+#define CTRL0_BCLK_O_INV_G12A		BIT(6)
+#define CTRL0_BCLK_SEL_G12A_MSB		5
+#define CTRL0_BCLK_SEL_G12A_LSB		4
+
+/* SM1 bits */
+#define CTRL0_DAT_SEL_SM1_MSB		19
+#define CTRL0_DAT_SEL_SM1_LSB		18
+#define CTRL0_LANE_SEL_SM1_MSB		17
+#define CTRL0_LANE_SEL_SM1_LSB		16
+#define CTRL0_LANE_SEL_SM1_MAX		3
+#define CTRL0_LRCLK_SEL_SM1_MSB		14
+#define CTRL0_LRCLK_SEL_SM1_LSB		12
+#define CTRL0_LRCLK_INV_SM1		BIT(10)
+#define CTRL0_BLK_CAP_INV_SM1		BIT(9)
+#define CTRL0_BCLK_O_INV_SM1		BIT(8)
+#define CTRL0_BCLK_SEL_SM1_MSB		6
+#define CTRL0_BCLK_SEL_SM1_LSB		4
 
 #define TOACODEC_OUT_CHMAX		2
 
@@ -108,7 +119,7 @@ static int g12a_toacodec_mux_put_enum(struct snd_kcontrol *kcontrol,
 }
 
 static SOC_ENUM_SINGLE_DECL(g12a_toacodec_mux_enum, TOACODEC_CTRL0,
-			    CTRL0_DAT_SEL_LSB,
+			    CTRL0_DAT_SEL_G12A_LSB,
 			    g12a_toacodec_mux_texts);
 
 static SOC_ENUM_SINGLE_DECL(sm1_toacodec_mux_enum, TOACODEC_CTRL0,
@@ -210,7 +221,7 @@ static int g12a_toacodec_component_probe(struct snd_soc_component *c)
 {
 	/* Initialize the static clock parameters */
 	return snd_soc_component_write(c, TOACODEC_CTRL0,
-				       CTRL0_BLK_CAP_INV);
+				       CTRL0_BLK_CAP_INV_G12A);
 }
 
 static int sm1_toacodec_component_probe(struct snd_soc_component *c)
@@ -229,11 +240,13 @@ static const struct snd_soc_dapm_route g12a_toacodec_routes[] = {
 };
 
 static const struct snd_kcontrol_new g12a_toacodec_controls[] = {
-	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL, 3, 0),
+	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_G12A_LSB,
+		   CTRL0_LANE_SEL_G12A_MAX, 0),
 };
 
 static const struct snd_kcontrol_new sm1_toacodec_controls[] = {
-	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_SM1, 3, 0),
+	SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL_SM1_LSB,
+		   CTRL0_LANE_SEL_SM1_MAX, 0),
 };
 
 static const struct snd_soc_component_driver g12a_toacodec_component_drv = {
@@ -266,16 +279,22 @@ static const struct regmap_config g12a_toacodec_regmap_cfg = {
 
 static const struct g12a_toacodec_match_data g12a_toacodec_match_data = {
 	.component_drv	= &g12a_toacodec_component_drv,
-	.field_dat_sel	= REG_FIELD(TOACODEC_CTRL0, 14, 15),
-	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 8, 9),
-	.field_bclk_sel	= REG_FIELD(TOACODEC_CTRL0, 4, 5),
+	.field_dat_sel	= REG_FIELD(TOACODEC_CTRL0, CTRL0_DAT_SEL_G12A_LSB,
+				    CTRL0_DAT_SEL_G12A_MSB),
+	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, CTRL0_LRCLK_SEL_G12A_LSB,
+				     CTRL0_LRCLK_SEL_G12A_MSB),
+	.field_bclk_sel	= REG_FIELD(TOACODEC_CTRL0, CTRL0_BCLK_SEL_G12A_LSB,
+				    CTRL0_BCLK_SEL_G12A_MSB),
 };
 
 static const struct g12a_toacodec_match_data sm1_toacodec_match_data = {
 	.component_drv	= &sm1_toacodec_component_drv,
-	.field_dat_sel	= REG_FIELD(TOACODEC_CTRL0, 18, 19),
-	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, 12, 14),
-	.field_bclk_sel	= REG_FIELD(TOACODEC_CTRL0, 4, 6),
+	.field_dat_sel	= REG_FIELD(TOACODEC_CTRL0, CTRL0_DAT_SEL_SM1_LSB,
+				    CTRL0_DAT_SEL_SM1_MSB),
+	.field_lrclk_sel = REG_FIELD(TOACODEC_CTRL0, CTRL0_LRCLK_SEL_SM1_LSB,
+				     CTRL0_LRCLK_SEL_SM1_MSB),
+	.field_bclk_sel	= REG_FIELD(TOACODEC_CTRL0, CTRL0_BCLK_SEL_SM1_LSB,
+				    CTRL0_BCLK_SEL_SM1_MSB),
 };
 
 static const struct of_device_id g12a_toacodec_of_match[] = {
-- 
2.34.1