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ASoC: sun4i-i2s: Add clkdiv offsets to quirks 

The BCLKDIV and MCLKDIV found on newer SoCs start from an offset of 1.
Add the functionality to adjust the division values according to the
needs to the device being used.

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 2017-08-12 13:00:49 +02:00 committed by Mark Brown
parent 92ff5d085e
commit 0aef27cab8
1 changed files with 8 additions and 0 deletions
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8
sound/soc/sunxi/sun4i-i2s.c
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@ -94,9 +94,13 @@
* struct sun4i_i2s_quirks - Differences between SoC variants.
*
* @has_reset: SoC needs reset deasserted.
* @mclk_offset: Value by which mclkdiv needs to be adjusted.
* @bclk_offset: Value by which bclkdiv needs to be adjusted.
*/
struct sun4i_i2s_quirks {
bool has_reset;
unsigned int mclk_offset;
unsigned int bclk_offset;
};
struct sun4i_i2s {
@ -237,6 +241,10 @@ static int sun4i_i2s_set_clk_rate(struct sun4i_i2s *i2s,
if (mclk_div < 0)
return -EINVAL;
/* Adjust the clock division values if needed */
bclk_div += i2s->variant->bclk_offset;
mclk_div += i2s->variant->mclk_offset;
regmap_write(i2s->regmap, SUN4I_I2S_CLK_DIV_REG,
SUN4I_I2S_CLK_DIV_BCLK(bclk_div) |
SUN4I_I2S_CLK_DIV_MCLK(mclk_div) |