Unverified Commit c7bf9156 authored by Syed Saba Kareem's avatar Syed Saba Kareem Committed by Mark Brown
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ASoC: amd: acp: add i2s clock generation support for acp6.3 based platforms 



Add I2S LRCLK & BCLK generation code for ACP6.3 based platforms.

Signed-off-by: default avatarSyed Saba Kareem <Syed.SabaKareem@amd.com>
Link: https://lore.kernel.org/r/20231021145110.478744-3-Syed.SabaKareem@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 40f74d5f

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

+16 −3
Original line number Diff line number Diff line
@@ -27,14 +27,19 @@ 
#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)

#define	ACP63_LRCLK_DIV_FIELD		GENMASK(12, 2)

#define	ACP63_BCLK_DIV_FIELD		GENMASK(23, 13)



static inline void acp_set_i2s_clk(struct acp_dev_data *adata, int dai_id)

{

	u32 i2s_clk_reg, val;

	struct acp_chip_info *chip;

	struct device *dev;



	dev = adata->dev;

	chip = dev_get_platdata(dev);

	switch (dai_id) {

	case I2S_SP_INSTANCE:

		i2s_clk_reg = ACP_I2STDM0_MSTRCLKGEN;
@@ -52,8 +57,16 @@ static inline void acp_set_i2s_clk(struct acp_dev_data *adata, int dai_id) 


	val  = I2S_MASTER_MODE_ENABLE;

	val |= I2S_MODE_ENABLE & BIT(1);



	switch (chip->acp_rev) {

	case ACP63_DEV:

		val |= FIELD_PREP(ACP63_LRCLK_DIV_FIELD, adata->lrclk_div);

		val |= FIELD_PREP(ACP63_BCLK_DIV_FIELD, adata->bclk_div);

		break;

	default:

		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);

}