[PATCH v3 07/11] ASoC: sun4i-i2s: Add mclk enable regmap field

codekipper at gmail.com
2017-08-12T11:00:55Z

The location of the mclk output enable bit is different on newer
SoCs. Use a regmap field to enable it.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
---
sound/soc/sunxi/sun4i-i2s.c | 23 ++++++++++++++++++-----
1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index a389cdf8c4dc..33af99076d62 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -101,6 +101,7 @@
* @mclk_offset: Value by which mclkdiv needs to be adjusted.
* @bclk_offset: Value by which bclkdiv needs to be adjusted.
* @fmt_offset: Value by which wss and sr needs to be adjusted.
+ * @field_clkdiv_mclk_en: regmap field to enable mclk output.
* @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.
@@ -119,6 +120,7 @@ struct sun4i_i2s_quirks {
unsigned int fmt_offset;

/* Register fields for i2s */
+ struct reg_field field_clkdiv_mclk_en;
struct reg_field field_fmt_wss;
struct reg_field field_fmt_sr;
struct reg_field field_fmt_bclk;
@@ -141,6 +143,7 @@ struct sun4i_i2s {
struct snd_dmaengine_dai_dma_data playback_dma_data;

/* Register fields for i2s */
+ struct regmap_field *field_clkdiv_mclk_en;
struct regmap_field *field_fmt_wss;
struct regmap_field *field_fmt_sr;
struct regmap_field *field_fmt_bclk;
@@ -283,8 +286,9 @@ static int sun4i_i2s_set_clk_rate(struct sun4i_i2s *i2s,

regmap_write(i2s->regmap, SUN4I_I2S_CLK_DIV_REG,
SUN4I_I2S_CLK_DIV_BCLK(bclk_div) |
- SUN4I_I2S_CLK_DIV_MCLK(mclk_div) |
- SUN4I_I2S_CLK_DIV_MCLK_EN);
+ SUN4I_I2S_CLK_DIV_MCLK(mclk_div));
+
+ regmap_field_write(i2s->field_clkdiv_mclk_en, 1);

return 0;
}
@@ -713,6 +717,7 @@ static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = {
.has_reset = false,
.reg_offset_txdata = SUN4I_I2S_FIFO_TX_REG,
.sun4i_i2s_regmap = &sun4i_i2s_regmap_config,
+ .field_clkdiv_mclk_en = REG_FIELD(SUN4I_I2S_CLK_DIV_REG, 7, 7),
.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),
@@ -727,6 +732,7 @@ static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
.has_reset = true,
.reg_offset_txdata = SUN4I_I2S_FIFO_TX_REG,
.sun4i_i2s_regmap = &sun4i_i2s_regmap_config,
+ .field_clkdiv_mclk_en = REG_FIELD(SUN4I_I2S_CLK_DIV_REG, 7, 7),
.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),
@@ -742,10 +748,17 @@ static int sun4i_i2s_init_regmap_fields(struct device *dev,
{
int ret;

- i2s->field_txchanmap =
+ i2s->field_clkdiv_mclk_en =
devm_regmap_field_alloc(dev, i2s->regmap,
- i2s->variant->field_txchanmap);
- ret = PTR_ERR_OR_ZERO(i2s->field_txchanmap);
+ i2s->variant->field_clkdiv_mclk_en);
+ ret = PTR_ERR_OR_ZERO(i2s->field_clkdiv_mclk_en);
+
+ if (!ret) {
+ i2s->field_txchanmap =
+ devm_regmap_field_alloc(dev, i2s->regmap,
+ i2s->variant->field_txchanmap);
+ ret = PTR_ERR_OR_ZERO(i2s->field_txchanmap);
+ }

if (!ret) {
i2s->field_rxchanmap =
--
2.14.1