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ASoC: sun4i-i2s: bclk and lrclk polarity tidyup 

On newer SoCs the bit fields for the blck and lrclk polarity are in
a different locations. Use regmap fields to set the polarity bits
as intended.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Marcus Cooper 2017-08-19 14:48:34 +02:00 committed by Mark Brown
parent 7716471591
commit 296935213f
1 changed files with 32 additions and 13 deletions
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45
sound/soc/sunxi/sun4i-i2s.c
View File

@ -50,6 +50,8 @@
#define SUN4I_I2S_FMT0_FMT_RIGHT_J (2 << 0)
#define SUN4I_I2S_FMT0_FMT_LEFT_J (1 << 0)
#define SUN4I_I2S_FMT0_FMT_I2S (0 << 0)
#define SUN4I_I2S_FMT0_POLARITY_INVERTED (1)
#define SUN4I_I2S_FMT0_POLARITY_NORMAL (0)
#define SUN4I_I2S_FMT1_REG 0x08
#define SUN4I_I2S_FIFO_TX_REG 0x0c
@ -101,6 +103,8 @@
* @fmt_offset: Value by which wss and sr needs to be adjusted.
* @field_fmt_wss: regmap field to set word select size.
* @field_fmt_sr: regmap field to set sample resolution.
* @field_fmt_bclk: regmap field to set clk polarity.
* @field_fmt_lrclk: regmap field to set frame polarity.
* @field_txchanmap: location of the tx channel mapping register.
* @field_rxchanmap: location of the rx channel mapping register.
* @field_txchansel: location of the tx channel select bit fields.
@ -117,6 +121,8 @@ struct sun4i_i2s_quirks {
/* Register fields for i2s */
struct reg_field field_fmt_wss;
struct reg_field field_fmt_sr;
struct reg_field field_fmt_bclk;
struct reg_field field_fmt_lrclk;
struct reg_field field_txchanmap;
struct reg_field field_rxchanmap;
struct reg_field field_txchansel;
@ -137,6 +143,8 @@ struct sun4i_i2s {
/* Register fields for i2s */
struct regmap_field *field_fmt_wss;
struct regmap_field *field_fmt_sr;
struct regmap_field *field_fmt_bclk;
struct regmap_field *field_fmt_lrclk;
struct regmap_field *field_txchanmap;
struct regmap_field *field_rxchanmap;
struct regmap_field *field_txchansel;
@ -335,6 +343,8 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai);
u32 val;
u32 bclk_polarity = SUN4I_I2S_FMT0_POLARITY_NORMAL;
u32 lrclk_polarity = SUN4I_I2S_FMT0_POLARITY_NORMAL;
/* DAI Mode */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
@ -359,32 +369,25 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_IB_IF:
/* Invert both clocks */
val = SUN4I_I2S_FMT0_BCLK_POLARITY_INVERTED |
SUN4I_I2S_FMT0_LRCLK_POLARITY_INVERTED;
bclk_polarity = SUN4I_I2S_FMT0_POLARITY_INVERTED;
lrclk_polarity = SUN4I_I2S_FMT0_POLARITY_INVERTED;
break;
case SND_SOC_DAIFMT_IB_NF:
/* Invert bit clock */
val = SUN4I_I2S_FMT0_BCLK_POLARITY_INVERTED |
SUN4I_I2S_FMT0_LRCLK_POLARITY_NORMAL;
bclk_polarity = SUN4I_I2S_FMT0_POLARITY_INVERTED;
break;
case SND_SOC_DAIFMT_NB_IF:
/* Invert frame clock */
val = SUN4I_I2S_FMT0_LRCLK_POLARITY_INVERTED |
SUN4I_I2S_FMT0_BCLK_POLARITY_NORMAL;
lrclk_polarity = SUN4I_I2S_FMT0_POLARITY_INVERTED;
break;
case SND_SOC_DAIFMT_NB_NF:
/* Nothing to do for both normal cases */
val = SUN4I_I2S_FMT0_BCLK_POLARITY_NORMAL |
SUN4I_I2S_FMT0_LRCLK_POLARITY_NORMAL;
break;
default:
return -EINVAL;
}
regmap_update_bits(i2s->regmap, SUN4I_I2S_FMT0_REG,
SUN4I_I2S_FMT0_BCLK_POLARITY_MASK |
SUN4I_I2S_FMT0_LRCLK_POLARITY_MASK,
val);
regmap_field_write(i2s->field_fmt_bclk, bclk_polarity);
regmap_field_write(i2s->field_fmt_lrclk, lrclk_polarity);
/* DAI clock master masks */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
@ -712,6 +715,8 @@ static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = {
.sun4i_i2s_regmap = &sun4i_i2s_regmap_config,
.field_fmt_wss = REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3),
.field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5),
.field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6),
.field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
.field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31),
.field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31),
.field_txchansel = REG_FIELD(SUN4I_I2S_TX_CHAN_SEL_REG, 0, 2),
@ -724,6 +729,8 @@ static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
.sun4i_i2s_regmap = &sun4i_i2s_regmap_config,
.field_fmt_wss = REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3),
.field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5),
.field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6),
.field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
.field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31),
.field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31),
.field_txchansel = REG_FIELD(SUN4I_I2S_TX_CHAN_SEL_REG, 0, 2),
@ -745,6 +752,18 @@ static int sun4i_i2s_init_regmap_fields(struct device *dev,
if (IS_ERR(i2s->field_fmt_sr))
return PTR_ERR(i2s->field_fmt_sr);
i2s->field_fmt_bclk =
devm_regmap_field_alloc(dev, i2s->regmap,
i2s->variant->field_fmt_bclk);
if (IS_ERR(i2s->field_fmt_bclk))
return PTR_ERR(i2s->field_fmt_bclk);
i2s->field_fmt_lrclk =
devm_regmap_field_alloc(dev, i2s->regmap,
i2s->variant->field_fmt_lrclk);
if (IS_ERR(i2s->field_fmt_lrclk))
return PTR_ERR(i2s->field_fmt_lrclk);
i2s->field_txchanmap =
devm_regmap_field_alloc(dev, i2s->regmap,
i2s->variant->field_txchanmap);