diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c index a98e4f04e11f..773162c876eb 100644 --- a/sound/soc/rockchip/rockchip_pdm.c +++ b/sound/soc/rockchip/rockchip_pdm.c @@ -33,6 +33,7 @@ enum rk_pdm_version { RK_PDM_RK3229, RK_PDM_RK3308, + RK_PDM_RV1126, }; struct rk_pdm_dev { @@ -130,6 +131,55 @@ static unsigned int get_pdm_ds_ratio(unsigned int sr) return ratio; } +static unsigned int get_pdm_cic_ratio(unsigned int clk) +{ + switch (clk) { + case 4096000: + case 5644800: + case 6144000: + return 0; + case 2048000: + case 2822400: + case 3072000: + return 1; + case 1024000: + case 1411200: + case 1536000: + return 2; + default: + return 1; + } +} + +static unsigned int samplerate_to_bit(unsigned int samplerate) +{ + switch (samplerate) { + case 8000: + case 11025: + case 12000: + return 0; + case 16000: + case 22050: + case 24000: + return 1; + case 32000: + return 2; + case 44100: + case 48000: + return 3; + case 64000: + case 88200: + case 96000: + return 4; + case 128000: + case 176400: + case 192000: + return 5; + default: + return 1; + } +} + static inline struct rk_pdm_dev *to_info(struct snd_soc_dai *dai) { return snd_soc_dai_get_drvdata(dai); @@ -203,8 +253,18 @@ static int rockchip_pdm_hw_params(struct snd_pcm_substream *substream, PDM_CLK_FD_RATIO_MSK, val); } - val = get_pdm_ds_ratio(samplerate); - regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_DS_RATIO_MSK, val); + + if (pdm->version == RK_PDM_RV1126) { + val = get_pdm_cic_ratio(clk_out); + regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_CIC_RATIO_MSK, val); + val = samplerate_to_bit(samplerate); + regmap_update_bits(pdm->regmap, PDM_CTRL0, + PDM_SAMPLERATE_MSK, PDM_SAMPLERATE(val)); + } else { + val = get_pdm_ds_ratio(samplerate); + regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_DS_RATIO_MSK, val); + } + regmap_update_bits(pdm->regmap, PDM_HPF_CTRL, PDM_HPF_CF_MSK, PDM_HPF_60HZ); regmap_update_bits(pdm->regmap, PDM_HPF_CTRL, @@ -478,6 +538,8 @@ static const struct of_device_id rockchip_pdm_match[] = { .data = (void *)RK_PDM_RK3308 }, { .compatible = "rockchip,rk3308-pdm", .data = (void *)RK_PDM_RK3308 }, + { .compatible = "rockchip,rv1126-pdm", + .data = (void *)RK_PDM_RV1126 }, {}, }; MODULE_DEVICE_TABLE(of, rockchip_pdm_match); diff --git a/sound/soc/rockchip/rockchip_pdm.h b/sound/soc/rockchip/rockchip_pdm.h index ae88644aa334..8cfa8f013ac1 100644 --- a/sound/soc/rockchip/rockchip_pdm.h +++ b/sound/soc/rockchip/rockchip_pdm.h @@ -50,6 +50,8 @@ #define PDM_PATH1_EN BIT(28) #define PDM_PATH0_EN BIT(27) #define PDM_HWT_EN BIT(26) +#define PDM_SAMPLERATE_MSK GENMASK(7, 5) +#define PDM_SAMPLERATE(x) ((x) << 5) #define PDM_VDW_MSK (0x1f << 0) #define PDM_VDW(X) ((X - 1) << 0) @@ -75,6 +77,7 @@ #define PDM_CLK_1280FS (0x2 << 0) #define PDM_CLK_2560FS (0x3 << 0) #define PDM_CLK_5120FS (0x4 << 0) +#define PDM_CIC_RATIO_MSK (0x3 << 0) /* PDM HPF CTRL */ #define PDM_HPF_LE BIT(3)