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Subject[PATCH v5 11/15] ASoC: sun4i-i2s: Add support for H6 I2S
Date
From: Jernej Skrabec <jernej.skrabec@siol.net>

H6 I2S is very similar to that in H3, except it supports up to 16
channels.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
sound/soc/sunxi/sun4i-i2s.c | 148 ++++++++++++++++++++++++++++++++++++
1 file changed, 148 insertions(+)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 6de3cb41aaf6..a8d98696fe7c 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -121,6 +121,21 @@
#define SUN8I_I2S_RX_CHAN_SEL_REG 0x54
#define SUN8I_I2S_RX_CHAN_MAP_REG 0x58

+/* Defines required for sun50i-h6 support */
+#define SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET_MASK GENMASK(21, 20)
+#define SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET(offset) ((offset) << 20)
+#define SUN50I_H6_I2S_TX_CHAN_SEL_MASK GENMASK(19, 16)
+#define SUN50I_H6_I2S_TX_CHAN_SEL(chan) ((chan - 1) << 16)
+#define SUN50I_H6_I2S_TX_CHAN_EN_MASK GENMASK(15, 0)
+#define SUN50I_H6_I2S_TX_CHAN_EN(num_chan) (((1 << num_chan) - 1))
+
+#define SUN50I_H6_I2S_TX_CHAN_MAP0_REG 0x44
+#define SUN50I_H6_I2S_TX_CHAN_MAP1_REG 0x48
+
+#define SUN50I_H6_I2S_RX_CHAN_SEL_REG 0x64
+#define SUN50I_H6_I2S_RX_CHAN_MAP0_REG 0x68
+#define SUN50I_H6_I2S_RX_CHAN_MAP1_REG 0x6C
+
struct sun4i_i2s;

/**
@@ -440,6 +455,25 @@ static void sun8i_i2s_set_rxchanoffset(const struct sun4i_i2s *i2s)
SUN8I_I2S_TX_CHAN_OFFSET(i2s->offset));
}

+static void sun50i_h6_i2s_set_txchanoffset(const struct sun4i_i2s *i2s, int output)
+{
+ if (output >= 0 && output < 4) {
+ regmap_update_bits(i2s->regmap,
+ SUN8I_I2S_TX_CHAN_SEL_REG + (output * 4),
+ SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET_MASK,
+ SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET(i2s->offset));
+ }
+
+}
+
+static void sun50i_h6_i2s_set_rxchanoffset(const struct sun4i_i2s *i2s)
+{
+ regmap_update_bits(i2s->regmap,
+ SUN50I_H6_I2S_RX_CHAN_SEL_REG,
+ SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET_MASK,
+ SUN50I_H6_I2S_TX_CHAN_SEL_OFFSET(i2s->offset));
+}
+
static void sun8i_i2s_set_txchanen(const struct sun4i_i2s *i2s, int output,
int channel)
{
@@ -459,6 +493,26 @@ static void sun8i_i2s_set_rxchanen(const struct sun4i_i2s *i2s, int channel)
SUN8I_I2S_TX_CHAN_EN(channel));
}

+
+static void sun50i_h6_i2s_set_txchanen(const struct sun4i_i2s *i2s, int output,
+ int channel)
+{
+ if (output >= 0 && output < 4) {
+ regmap_update_bits(i2s->regmap,
+ SUN8I_I2S_TX_CHAN_SEL_REG + (output * 4),
+ SUN50I_H6_I2S_TX_CHAN_EN_MASK,
+ SUN50I_H6_I2S_TX_CHAN_EN(channel));
+ }
+}
+
+static void sun50i_h6_i2s_set_rxchanen(const struct sun4i_i2s *i2s, int channel)
+{
+ regmap_update_bits(i2s->regmap,
+ SUN50I_H6_I2S_RX_CHAN_SEL_REG,
+ SUN50I_H6_I2S_TX_CHAN_EN_MASK,
+ SUN50I_H6_I2S_TX_CHAN_EN(channel));
+}
+
static void sun4i_i2s_set_txchansel(const struct sun4i_i2s *i2s, int output,
int channel)
{
@@ -495,6 +549,25 @@ static void sun8i_i2s_set_rxchansel(const struct sun4i_i2s *i2s, int channel)
SUN8I_I2S_TX_CHAN_SEL(channel));
}

+static void sun50i_h6_i2s_set_txchansel(const struct sun4i_i2s *i2s, int output,
+ int channel)
+{
+ if (output >= 0 && output < 4) {
+ regmap_update_bits(i2s->regmap,
+ SUN8I_I2S_TX_CHAN_SEL_REG + (output * 4),
+ SUN50I_H6_I2S_TX_CHAN_SEL_MASK,
+ SUN50I_H6_I2S_TX_CHAN_SEL(channel));
+ }
+}
+
+static void sun50i_h6_i2s_set_rxchansel(const struct sun4i_i2s *i2s, int channel)
+{
+ regmap_update_bits(i2s->regmap,
+ SUN50I_H6_I2S_RX_CHAN_SEL_REG,
+ SUN50I_H6_I2S_TX_CHAN_SEL_MASK,
+ SUN50I_H6_I2S_TX_CHAN_SEL(channel));
+}
+
static void sun4i_i2s_set_txchanmap(const struct sun4i_i2s *i2s, int output,
int channel)
{
@@ -520,6 +593,20 @@ static void sun8i_i2s_set_rxchanmap(const struct sun4i_i2s *i2s, int channel)
regmap_write(i2s->regmap, SUN8I_I2S_RX_CHAN_MAP_REG, channel);
}

+static void sun50i_h6_i2s_set_txchanmap(const struct sun4i_i2s *i2s, int output,
+ int channel)
+{
+ if (output >= 0 && output < 4) {
+ regmap_write(i2s->regmap,
+ SUN50I_H6_I2S_TX_CHAN_MAP1_REG + (output * 8), channel);
+ }
+}
+
+static void sun50i_h6_i2s_set_rxchanmap(const struct sun4i_i2s *i2s, int channel)
+{
+ regmap_write(i2s->regmap, SUN50I_H6_I2S_RX_CHAN_MAP1_REG, channel);
+}
+
static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -996,6 +1083,22 @@ static const struct reg_default sun8i_i2s_reg_defaults[] = {
{ SUN8I_I2S_RX_CHAN_MAP_REG, 0x00000000 },
};

+static const struct reg_default sun50i_i2s_reg_defaults[] = {
+ { SUN4I_I2S_CTRL_REG, 0x00060000 },
+ { SUN4I_I2S_FMT0_REG, 0x00000033 },
+ { SUN4I_I2S_FMT1_REG, 0x00000030 },
+ { SUN4I_I2S_FIFO_CTRL_REG, 0x000400f0 },
+ { SUN4I_I2S_DMA_INT_CTRL_REG, 0x00000000 },
+ { SUN4I_I2S_CLK_DIV_REG, 0x00000000 },
+ { SUN8I_I2S_CHAN_CFG_REG, 0x00000000 },
+ { SUN8I_I2S_TX_CHAN_SEL_REG, 0x00000000 },
+ { SUN50I_H6_I2S_TX_CHAN_MAP0_REG, 0x00000000 },
+ { SUN50I_H6_I2S_TX_CHAN_MAP1_REG, 0x00000000 },
+ { SUN50I_H6_I2S_RX_CHAN_SEL_REG, 0x00000000 },
+ { SUN50I_H6_I2S_RX_CHAN_MAP0_REG, 0x00000000 },
+ { SUN50I_H6_I2S_RX_CHAN_MAP1_REG, 0x00000000 },
+};
+
static const struct regmap_config sun4i_i2s_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
@@ -1023,6 +1126,19 @@ static const struct regmap_config sun8i_i2s_regmap_config = {
.volatile_reg = sun8i_i2s_volatile_reg,
};

+static const struct regmap_config sun50i_i2s_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = SUN50I_H6_I2S_RX_CHAN_MAP1_REG,
+ .cache_type = REGCACHE_FLAT,
+ .reg_defaults = sun50i_i2s_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(sun50i_i2s_reg_defaults),
+ .writeable_reg = sun4i_i2s_wr_reg,
+ .readable_reg = sun8i_i2s_rd_reg,
+ .volatile_reg = sun8i_i2s_volatile_reg,
+};
+
static int sun4i_i2s_runtime_resume(struct device *dev)
{
struct sun4i_i2s *i2s = dev_get_drvdata(dev);
@@ -1197,6 +1313,34 @@ static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = {
.set_rxchanmap = sun4i_i2s_set_rxchanmap,
};

+static const struct sun4i_i2s_quirks sun50i_h6_i2s_quirks = {
+ .has_reset = true,
+ .reg_offset_txdata = SUN8I_I2S_FIFO_TX_REG,
+ .sun4i_i2s_regmap = &sun50i_i2s_regmap_config,
+ .has_fmt_set_lrck_period = true,
+ .has_chcfg = true,
+ .has_chsel_tx_chen = true,
+ .has_chsel_offset = true,
+ .field_clkdiv_mclk_en = REG_FIELD(SUN4I_I2S_CLK_DIV_REG, 8, 8),
+ .field_fmt_wss = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 2),
+ .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 6),
+ .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
+ .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 19, 19),
+ .field_fmt_mode = REG_FIELD(SUN4I_I2S_CTRL_REG, 4, 5),
+ .field_fmt_sext = REG_FIELD(SUN4I_I2S_FMT1_REG, 4, 5),
+ .get_sr = sun8i_i2s_get_sr_wss,
+ .get_wss = sun8i_i2s_get_sr_wss,
+ .set_format = sun8i_i2s_set_format,
+ .set_txchanoffset = sun50i_h6_i2s_set_txchanoffset,
+ .set_rxchanoffset = sun50i_h6_i2s_set_rxchanoffset,
+ .set_txchanen = sun50i_h6_i2s_set_txchanen,
+ .set_rxchanen = sun50i_h6_i2s_set_rxchanen,
+ .set_txchansel = sun50i_h6_i2s_set_txchansel,
+ .set_rxchansel = sun50i_h6_i2s_set_rxchansel,
+ .set_txchanmap = sun50i_h6_i2s_set_txchanmap,
+ .set_rxchanmap = sun50i_h6_i2s_set_rxchanmap,
+};
+
static int sun4i_i2s_init_regmap_fields(struct device *dev,
struct sun4i_i2s *i2s)
{
@@ -1389,6 +1533,10 @@ static const struct of_device_id sun4i_i2s_match[] = {
.compatible = "allwinner,sun50i-a64-codec-i2s",
.data = &sun50i_a64_codec_i2s_quirks,
},
+ {
+ .compatible = "allwinner,sun50i-h6-i2s",
+ .data = &sun50i_h6_i2s_quirks,
+ },
{}
};
MODULE_DEVICE_TABLE(of, sun4i_i2s_match);
--
2.22.0
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