ASoC: amd: acp: refactor acp i2s clock generation code

Refactor acp i2s LRCLK,BCLK generation code and move to commnon file.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Link: https://lore.kernel.org/r/20231021145110.478744-2-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: saba-kareem

sound/soc/amd/acp/acp-i2s.c

@@ -20,10 +20,42 @@
 #include <sound/soc.h>
 #include <sound/soc-dai.h>
 #include <linux/dma-mapping.h>
+#include <linux/bitfield.h>
 
 #include "amd.h"
 
 #define DRV_NAME "acp_i2s_playcap"
+#define	I2S_MASTER_MODE_ENABLE		1
+#define	I2S_MODE_ENABLE			0
+#define	I2S_FORMAT_MODE			GENMASK(1, 1)
+#define	LRCLK_DIV_FIELD			GENMASK(10, 2)
+#define	BCLK_DIV_FIELD			GENMASK(23, 11)
+
+static inline void acp_set_i2s_clk(struct acp_dev_data *adata, int dai_id)
+{
+	u32 i2s_clk_reg, val;
+
+	switch (dai_id) {
+	case I2S_SP_INSTANCE:
+		i2s_clk_reg = ACP_I2STDM0_MSTRCLKGEN;
+		break;
+	case I2S_BT_INSTANCE:
+		i2s_clk_reg = ACP_I2STDM1_MSTRCLKGEN;
+		break;
+	case I2S_HS_INSTANCE:
+		i2s_clk_reg = ACP_I2STDM2_MSTRCLKGEN;
+		break;
+	default:
+		i2s_clk_reg = ACP_I2STDM0_MSTRCLKGEN;
+		break;
+	}
+
+	val  = I2S_MASTER_MODE_ENABLE;
+	val |= I2S_MODE_ENABLE & BIT(1);
+	val |= FIELD_PREP(LRCLK_DIV_FIELD, adata->lrclk_div);
+	val |= FIELD_PREP(BCLK_DIV_FIELD, adata->bclk_div);
+	writel(val, adata->acp_base + i2s_clk_reg);
+}
 
 static int acp_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 			   unsigned int fmt)

sound/soc/amd/acp/amd.h

@@ -188,17 +188,6 @@ struct acp_dev_data {
 	u32 xfer_rx_resolution[3];
 };
 
-union acp_i2stdm_mstrclkgen {
-	struct {
-		u32 i2stdm_master_mode : 1;
-		u32 i2stdm_format_mode : 1;
-		u32 i2stdm_lrclk_div_val : 9;
-		u32 i2stdm_bclk_div_val : 11;
-		u32:10;
-	} bitfields, bits;
-	u32  u32_all;
-};
-
 extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops;
 extern const struct snd_soc_dai_ops acp_dmic_dai_ops;
 
@@ -276,32 +265,4 @@ static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int
 POINTER_RETURN_BYTES:
 	return byte_count;
 }
-
-static inline void acp_set_i2s_clk(struct acp_dev_data *adata, int dai_id)
-{
-	union acp_i2stdm_mstrclkgen mclkgen;
-	u32 master_reg;
-
-	switch (dai_id) {
-	case I2S_SP_INSTANCE:
-		master_reg = ACP_I2STDM0_MSTRCLKGEN;
-		break;
-	case I2S_BT_INSTANCE:
-		master_reg = ACP_I2STDM1_MSTRCLKGEN;
-		break;
-	case I2S_HS_INSTANCE:
-		master_reg = ACP_I2STDM2_MSTRCLKGEN;
-		break;
-	default:
-		master_reg = ACP_I2STDM0_MSTRCLKGEN;
-		break;
-	}
-
-	mclkgen.bits.i2stdm_master_mode = 0x1;
-	mclkgen.bits.i2stdm_format_mode = 0x00;
-
-	mclkgen.bits.i2stdm_bclk_div_val = adata->bclk_div;
-	mclkgen.bits.i2stdm_lrclk_div_val = adata->lrclk_div;
-	writel(mclkgen.u32_all, adata->acp_base + master_reg);
-}
 #endif