On 24 January 2018 at 15:11, <codekipper@xxxxxxxxx> wrote:
> From: Marcus Cooper <codekipper@xxxxxxxxx>
>
> On the newer SoCs this is set by default to transfer a 0 after
> each sample in each slot. Add the regmap field to configure this
> and set it so that it pads the sample with 0s.
>
> Signed-off-by: Marcus Cooper <codekipper@xxxxxxxxx>
NACK missing regmap field from A83t.
CK
> ---
> sound/soc/sunxi/sun4i-i2s.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
> index 626679057d0f..9fda1240b717 100644
> --- a/sound/soc/sunxi/sun4i-i2s.c
> +++ b/sound/soc/sunxi/sun4i-i2s.c
> @@ -139,6 +139,7 @@
> * @field_fmt_bclk: regmap field to set clk polarity.
> * @field_fmt_lrclk: regmap field to set frame polarity.
> * @field_fmt_mode: regmap field to set the operational mode.
> + * @field_fmt_sext: regmap field to set the sign extension.
> * @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.
> @@ -164,6 +165,7 @@ struct sun4i_i2s_quirks {
> struct reg_field field_fmt_bclk;
> struct reg_field field_fmt_lrclk;
> struct reg_field field_fmt_mode;
> + struct reg_field field_fmt_sext;
> struct reg_field field_txchanmap;
> struct reg_field field_rxchanmap;
> struct reg_field field_txchansel;
> @@ -188,6 +190,7 @@ struct sun4i_i2s {
> struct regmap_field *field_fmt_bclk;
> struct regmap_field *field_fmt_lrclk;
> struct regmap_field *field_fmt_mode;
> + struct regmap_field *field_fmt_sext;
> struct regmap_field *field_txchanmap;
> struct regmap_field *field_rxchanmap;
> struct regmap_field *field_txchansel;
> @@ -358,6 +361,9 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai,
> SUN8I_I2S_FMT0_LRCK_PERIOD_MASK,
> SUN8I_I2S_FMT0_LRCK_PERIOD(word_size));
>
> + /* Set sign extension to pad out LSB with 0 */
> + regmap_field_write(i2s->field_fmt_sext, 0);
> +
> return 0;
> }
>
> @@ -929,6 +935,7 @@ static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = {
> .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
> .has_slave_select_bit = true,
> .field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1),
> + .field_fmt_sext = REG_FIELD(SUN4I_I2S_FMT1_REG, 8, 8),
> .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),
> @@ -946,6 +953,7 @@ static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
> .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
> .has_slave_select_bit = true,
> .field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1),
> + .field_fmt_sext = REG_FIELD(SUN4I_I2S_FMT1_REG, 8, 8),
> .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),
> @@ -986,6 +994,7 @@ static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = {
> .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),
> .field_txchanmap = REG_FIELD(SUN8I_I2S_TX_CHAN_MAP_REG, 0, 31),
> .field_rxchanmap = REG_FIELD(SUN8I_I2S_RX_CHAN_MAP_REG, 0, 31),
> .field_txchansel = REG_FIELD(SUN8I_I2S_TX_CHAN_SEL_REG, 0, 2),
> @@ -1031,6 +1040,12 @@ static int sun4i_i2s_init_regmap_fields(struct device *dev,
> if (IS_ERR(i2s->field_fmt_mode))
> return PTR_ERR(i2s->field_fmt_mode);
>
> + i2s->field_fmt_sext =
> + devm_regmap_field_alloc(dev, i2s->regmap,
> + i2s->variant->field_fmt_sext);
> + if (IS_ERR(i2s->field_fmt_sext))
> + return PTR_ERR(i2s->field_fmt_sext);
> +
> i2s->field_txchanmap =
> devm_regmap_field_alloc(dev, i2s->regmap,
> i2s->variant->field_txchanmap);
> --
> 2.16.0
>
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