diff options
Diffstat (limited to 'sound/soc/amd/acp/acp-i2s.c')
| -rw-r--r-- | sound/soc/amd/acp/acp-i2s.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sound/soc/amd/acp/acp-i2s.c b/sound/soc/amd/acp/acp-i2s.c index df35001496..60cbc881be 100644 --- a/sound/soc/amd/acp/acp-i2s.c +++ b/sound/soc/amd/acp/acp-i2s.c @@ -20,10 +20,55 @@ #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 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; + 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; + if (adata->tdm_mode) + val |= 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); +} static int acp_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) |