ASoC: sun4i-i2s: Add regfields for word size select and sample resolution

On newer SoCs the location of the slot width select and sample
resolution are different and also there is a bigger range of
support.

For the current supported rates then an offset is required.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 28 insertions, 3 deletions

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 87feb5a14cff..563de785d639 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -98,6 +98,9 @@
  * @sun4i_i2s_regmap: regmap config to use.
  * @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_fmt_wss: regmap field to set word select size.
+ * @field_fmt_sr: regmap field to set sample resolution.
  * @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.
@@ -109,8 +112,11 @@ struct sun4i_i2s_quirks {
         const struct regmap_config      *sun4i_i2s_regmap;
         unsigned int                    mclk_offset;
         unsigned int                    bclk_offset;
+        unsigned int                    fmt_offset;
 
         /* Register fields for i2s */
+        struct reg_field                field_fmt_wss;
+        struct reg_field                field_fmt_sr;
         struct reg_field                field_txchanmap;
         struct reg_field                field_rxchanmap;
         struct reg_field                field_txchansel;
@@ -129,6 +135,8 @@ struct sun4i_i2s {
         struct snd_dmaengine_dai_dma_data       playback_dma_data;
 
         /* Register fields for i2s */
+        struct regmap_field     *field_fmt_wss;
+        struct regmap_field     *field_fmt_sr;
         struct regmap_field     *field_txchanmap;
         struct regmap_field     *field_rxchanmap;
         struct regmap_field     *field_txchansel;
@@ -314,9 +322,10 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
                 return -EINVAL;
         }
 
-        regmap_update_bits(i2s->regmap, SUN4I_I2S_FMT0_REG,
-                           SUN4I_I2S_FMT0_WSS_MASK | SUN4I_I2S_FMT0_SR_MASK,
-                           SUN4I_I2S_FMT0_WSS(wss) | SUN4I_I2S_FMT0_SR(sr));
+        regmap_field_write(i2s->field_fmt_wss,
+                           wss + i2s->variant->fmt_offset);
+        regmap_field_write(i2s->field_fmt_sr,
+                           sr + i2s->variant->fmt_offset);
 
         return sun4i_i2s_set_clk_rate(i2s, params_rate(params),
                                       params_width(params));
@@ -701,6 +710,8 @@ 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_fmt_wss          = REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3),
+        .field_fmt_sr           = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5),
         .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),
@@ -711,6 +722,8 @@ 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_fmt_wss          = REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3),
+        .field_fmt_sr           = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5),
         .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),
@@ -720,6 +733,18 @@ static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
 static int sun4i_i2s_init_regmap_fields(struct device *dev,
                                         struct sun4i_i2s *i2s)
 {
+        i2s->field_fmt_wss =
+                        devm_regmap_field_alloc(dev, i2s->regmap,
+                                                i2s->variant->field_fmt_wss);
+        if (IS_ERR(i2s->field_fmt_wss))
+                return PTR_ERR(i2s->field_fmt_wss);
+
+        i2s->field_fmt_sr =
+                        devm_regmap_field_alloc(dev, i2s->regmap,
+                                                i2s->variant->field_fmt_sr);
+        if (IS_ERR(i2s->field_fmt_sr))
+                return PTR_ERR(i2s->field_fmt_sr);
+
         i2s->field_txchanmap =
                         devm_regmap_field_alloc(dev, i2s->regmap,
                                                 i2s->variant->field_txchanmap);