[PATCH 23/25] ASoC: sun8i-codec: Generalize AIF clock control
Samuel Holland
samuel at sholland.org
Thu Oct 1 04:11:46 CEST 2020
The AIF clock control register has the same layout for all three AIFs.
The only difference between them is that AIF3 is missing some fields. We
can reuse the same register field definitions for all three registers,
and use the DAI ID to select the correct register address.
Signed-off-by: Samuel Holland <samuel at sholland.org>
---
sound/soc/sunxi/sun8i-codec.c | 64 +++++++++++++++++++----------------
1 file changed, 34 insertions(+), 30 deletions(-)
diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c
index 032a3f714dbb..1c34502ac47a 100644
--- a/sound/soc/sunxi/sun8i-codec.c
+++ b/sound/soc/sunxi/sun8i-codec.c
@@ -37,23 +37,23 @@
#define SUN8I_MOD_CLK_ENA_DAC 2
#define SUN8I_MOD_RST_CTL 0x014
#define SUN8I_MOD_RST_CTL_AIF1 15
#define SUN8I_MOD_RST_CTL_ADC 3
#define SUN8I_MOD_RST_CTL_DAC 2
#define SUN8I_SYS_SR_CTRL 0x018
#define SUN8I_SYS_SR_CTRL_AIF1_FS 12
#define SUN8I_SYS_SR_CTRL_AIF2_FS 8
-#define SUN8I_AIF1CLK_CTRL 0x040
-#define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD 15
-#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV 13
-#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9
-#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6
-#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4
-#define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2
+#define SUN8I_AIF_CLK_CTRL(n) (0x040 * (1 + (n)))
+#define SUN8I_AIF_CLK_CTRL_MSTR_MOD 15
+#define SUN8I_AIF_CLK_CTRL_CLK_INV 13
+#define SUN8I_AIF_CLK_CTRL_BCLK_DIV 9
+#define SUN8I_AIF_CLK_CTRL_LRCK_DIV 6
+#define SUN8I_AIF_CLK_CTRL_WORD_SIZ 4
+#define SUN8I_AIF_CLK_CTRL_DATA_FMT 2
#define SUN8I_AIF1_ADCDAT_CTRL 0x044
#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0L_ENA 15
#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0R_ENA 14
#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0L_SRC 10
#define SUN8I_AIF1_ADCDAT_CTRL_AIF1_AD0R_SRC 8
#define SUN8I_AIF1_DACDAT_CTRL 0x048
#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA 15
#define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA 14
@@ -83,21 +83,21 @@
#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R 10
#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR 9
#define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR 8
#define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_MASK GENMASK(9, 8)
#define SUN8I_SYSCLK_CTL_AIF2CLK_SRC_MASK GENMASK(5, 4)
#define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12)
#define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8)
-#define SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK GENMASK(14, 13)
-#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9)
-#define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6)
-#define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4)
-#define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK GENMASK(3, 2)
+#define SUN8I_AIF_CLK_CTRL_CLK_INV_MASK GENMASK(14, 13)
+#define SUN8I_AIF_CLK_CTRL_BCLK_DIV_MASK GENMASK(12, 9)
+#define SUN8I_AIF_CLK_CTRL_LRCK_DIV_MASK GENMASK(8, 6)
+#define SUN8I_AIF_CLK_CTRL_WORD_SIZ_MASK GENMASK(5, 4)
+#define SUN8I_AIF_CLK_CTRL_DATA_FMT_MASK GENMASK(3, 2)
#define SUN8I_CODEC_PASSTHROUGH_SAMPLE_RATE 48000
#define SUN8I_CODEC_PCM_FORMATS (SNDRV_PCM_FMTBIT_S8 |\
SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S20_LE |\
SNDRV_PCM_FMTBIT_S24_LE |\
SNDRV_PCM_FMTBIT_S20_3LE|\
@@ -223,32 +223,34 @@ static int sun8i_codec_update_sample_rate(struct sun8i_codec *scodec)
hw_rate << SUN8I_SYS_SR_CTRL_AIF1_FS);
return 0;
}
static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct sun8i_codec *scodec = snd_soc_dai_get_drvdata(dai);
+ u32 reg = SUN8I_AIF_CLK_CTRL(dai->id);
u32 format, invert, value;
/* clock masters */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */
value = 0x1;
break;
case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */
value = 0x0;
break;
default:
return -EINVAL;
}
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
- BIT(SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD),
- value << SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD);
+
+ regmap_update_bits(scodec->regmap, reg,
+ BIT(SUN8I_AIF_CLK_CTRL_MSTR_MOD),
+ value << SUN8I_AIF_CLK_CTRL_MSTR_MOD);
/* DAI format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
format = 0x0;
break;
case SND_SOC_DAIFMT_LEFT_J:
format = 0x1;
@@ -262,19 +264,20 @@ static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
break;
case SND_SOC_DAIFMT_DSP_B:
format = 0x3;
invert = 0x1; /* Set LRCK_INV to 1 */
break;
default:
return -EINVAL;
}
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
- SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT_MASK,
- format << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT);
+
+ regmap_update_bits(scodec->regmap, reg,
+ SUN8I_AIF_CLK_CTRL_DATA_FMT_MASK,
+ format << SUN8I_AIF_CLK_CTRL_DATA_FMT);
/* clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF: /* Normal */
value = 0x0;
break;
case SND_SOC_DAIFMT_NB_IF: /* Inverted LRCK */
value = 0x1;
@@ -305,19 +308,19 @@ static int sun8i_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
* Since the DAI here is our regular i2s driver that have been
* tested with way more codecs than just this one, it means
* that the codec probably gets it backward, and we have to
* invert the value here.
*/
value ^= scodec->quirks->lrck_inversion;
}
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
- SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV_MASK,
- value << SUN8I_AIF1CLK_CTRL_AIF1_CLK_INV);
+ regmap_update_bits(scodec->regmap, reg,
+ SUN8I_AIF_CLK_CTRL_CLK_INV_MASK,
+ value << SUN8I_AIF_CLK_CTRL_CLK_INV);
return 0;
}
static int sun8i_codec_set_tdm_slot(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask,
int slots, int slot_width)
{
@@ -435,16 +438,17 @@ static int sun8i_codec_hw_params(struct snd_pcm_substream *substream,
{
struct sun8i_codec *scodec = snd_soc_dai_get_drvdata(dai);
struct sun8i_codec_aif *aif = &scodec->aifs[dai->id];
unsigned int sample_rate = params_rate(params);
unsigned int slots = aif->slots ?: params_channels(params);
unsigned int slot_width = aif->slot_width ?: params_width(params);
unsigned int sysclk_rate = sun8i_codec_get_sysclk_rate(sample_rate);
int bclk_div, lrck_div_order, ret, word_size;
+ u32 reg = SUN8I_AIF_CLK_CTRL(dai->id);
/* word size */
switch (params_width(params)) {
case 8:
word_size = 0x0;
break;
case 16:
word_size = 0x1;
@@ -454,37 +458,37 @@ static int sun8i_codec_hw_params(struct snd_pcm_substream *substream,
break;
case 24:
word_size = 0x3;
break;
default:
return -EINVAL;
}
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
- SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK,
- word_size << SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ);
+ regmap_update_bits(scodec->regmap, reg,
+ SUN8I_AIF_CLK_CTRL_WORD_SIZ_MASK,
+ word_size << SUN8I_AIF_CLK_CTRL_WORD_SIZ);
/* LRCK divider (BCLK/LRCK ratio) */
lrck_div_order = sun8i_codec_get_lrck_div_order(slots, slot_width);
if (lrck_div_order < 0)
return lrck_div_order;
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
- SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK,
- (lrck_div_order - 4) << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV);
+ regmap_update_bits(scodec->regmap, reg,
+ SUN8I_AIF_CLK_CTRL_LRCK_DIV_MASK,
+ (lrck_div_order - 4) << SUN8I_AIF_CLK_CTRL_LRCK_DIV);
/* BCLK divider (SYSCLK/BCLK ratio) */
bclk_div = sun8i_codec_get_bclk_div(sysclk_rate, lrck_div_order, sample_rate);
if (bclk_div < 0)
return bclk_div;
- regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL,
- SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK,
- bclk_div << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV);
+ regmap_update_bits(scodec->regmap, reg,
+ SUN8I_AIF_CLK_CTRL_BCLK_DIV_MASK,
+ bclk_div << SUN8I_AIF_CLK_CTRL_BCLK_DIV);
/* SYSCLK rate */
if (aif->open_streams) {
ret = clk_set_rate(scodec->clk_module, sysclk_rate);
if (ret < 0)
return ret;
} else {
ret = clk_set_rate_exclusive(scodec->clk_module, sysclk_rate);
--
2.26.2
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