[v3,08/12] ASoC: sun4i-i2s: Add mclk enable regmap field
diff mbox

Message ID 20170729141753.20174-9-codekipper@gmail.com
State New
Headers show

Commit Message

Code Kipper July 29, 2017, 2:17 p.m. UTC
From: Marcus Cooper <codekipper@gmail.com>

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 | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

Comments

Chen-Yu Tsai Aug. 2, 2017, 3:20 a.m. UTC | #1
On Sat, Jul 29, 2017 at 10:17 PM,  <codekipper@gmail.com> wrote:
> From: Marcus Cooper <codekipper@gmail.com>
>
> 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 | 22 +++++++++++++++++++---
>  1 file changed, 19 insertions(+), 3 deletions(-)
>
> diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
> index 90daa974bd27..6d8d2c4a675b 100644
> --- a/sound/soc/sunxi/sun4i-i2s.c
> +++ b/sound/soc/sunxi/sun4i-i2s.c
> @@ -74,7 +74,7 @@
>  #define SUN4I_I2S_INT_STA_REG          0x20
>
>  #define SUN4I_I2S_CLK_DIV_REG          0x24
> -#define SUN4I_I2S_CLK_DIV_MCLK_EN              BIT(7)
> +#define SUN4I_I2S_CLK_DIV_MCLK_EN              7
>  #define SUN4I_I2S_CLK_DIV_BCLK_MASK            GENMASK(6, 4)
>  #define SUN4I_I2S_CLK_DIV_BCLK(bclk)                   ((bclk) << 4)
>  #define SUN4I_I2S_CLK_DIV_MCLK_MASK            GENMASK(3, 0)
> @@ -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_set_wss: regmap field to set word select size.
>   * @field_fmt_set_sr: regmap field to set sample resolution.
>   * @field_fmt_set_bclk_polarity: 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_set_wss;
>         struct reg_field                field_fmt_set_sr;
>         struct reg_field                field_fmt_set_bclk_polarity;
> @@ -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_set_wss;
>         struct regmap_field     *field_fmt_set_sr;
>         struct regmap_field     *field_fmt_set_bclk_polarity;
> @@ -279,8 +282,9 @@ 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;
>  }
> @@ -710,6 +714,9 @@ 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,
> +                                           SUN4I_I2S_CLK_DIV_MCLK_EN,
> +                                           SUN4I_I2S_CLK_DIV_MCLK_EN),

Nit: just use raw number to match all the other lines. And you won't
need to change the macro.

ChenYu

Patch
diff mbox

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 90daa974bd27..6d8d2c4a675b 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -74,7 +74,7 @@ 
 #define SUN4I_I2S_INT_STA_REG		0x20
 
 #define SUN4I_I2S_CLK_DIV_REG		0x24
-#define SUN4I_I2S_CLK_DIV_MCLK_EN		BIT(7)
+#define SUN4I_I2S_CLK_DIV_MCLK_EN		7
 #define SUN4I_I2S_CLK_DIV_BCLK_MASK		GENMASK(6, 4)
 #define SUN4I_I2S_CLK_DIV_BCLK(bclk)			((bclk) << 4)
 #define SUN4I_I2S_CLK_DIV_MCLK_MASK		GENMASK(3, 0)
@@ -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_set_wss: regmap field to set word select size.
  * @field_fmt_set_sr: regmap field to set sample resolution.
  * @field_fmt_set_bclk_polarity: 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_set_wss;
 	struct reg_field		field_fmt_set_sr;
 	struct reg_field		field_fmt_set_bclk_polarity;
@@ -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_set_wss;
 	struct regmap_field	*field_fmt_set_sr;
 	struct regmap_field	*field_fmt_set_bclk_polarity;
@@ -279,8 +282,9 @@  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;
 }
@@ -710,6 +714,9 @@  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,
+					    SUN4I_I2S_CLK_DIV_MCLK_EN,
+					    SUN4I_I2S_CLK_DIV_MCLK_EN),
 	.field_fmt_set_wss	= REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3),
 	.field_fmt_set_sr	= REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5),
 	.field_fmt_set_bclk_polarity = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6),
@@ -724,6 +731,9 @@  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,
+					    SUN4I_I2S_CLK_DIV_MCLK_EN,
+					    SUN4I_I2S_CLK_DIV_MCLK_EN),
 	.field_fmt_set_wss	= REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3),
 	.field_fmt_set_sr	= REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5),
 	.field_fmt_set_bclk_polarity = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6),
@@ -760,6 +770,12 @@  static int sun4i_i2s_init_regmap_fields(struct device *dev, struct sun4i_i2s *i2
 	if (IS_ERR(i2s->field_fmt_set_lrclk_polarity))
 		return PTR_ERR(i2s->field_fmt_set_lrclk_polarity);
 
+	i2s->field_clkdiv_mclk_en =
+		devm_regmap_field_alloc(dev, i2s->regmap,
+					i2s->variant->field_clkdiv_mclk_en);
+	if (IS_ERR(i2s->field_clkdiv_mclk_en))
+		return PTR_ERR(i2s->field_clkdiv_mclk_en);
+
 	i2s->field_txchanmap =
 		devm_regmap_field_alloc(dev, i2s->regmap,
 					i2s->variant->field_txchanmap);