hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ASoC: da7218: Correct BCLK inversion for DSP DAI format mode 

By default the device latches data on the falling edge of the
BCLK in DSP mode, whereas the expectation for normal BCLK is to
latch on the rising edge. This updates the driver to invert the
BCLK configuration for DSP mode, to align with expected behaviour.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Adam Thomson 2016-01-05 18:15:33 +00:00 committed by Mark Brown
parent e05c25a1af
commit f644eb62fe
1 changed files with 37 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
sound/soc/codecs/da7218.c
View File

@ -1954,17 +1954,44 @@ static int da7218_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_RIGHT_J:
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_NB_IF:
dai_clk_mode |= DA7218_DAI_WCLK_POL_INV;
break;
case SND_SOC_DAIFMT_IB_NF:
dai_clk_mode |= DA7218_DAI_CLK_POL_INV;
break;
case SND_SOC_DAIFMT_IB_IF:
dai_clk_mode |= DA7218_DAI_WCLK_POL_INV |
DA7218_DAI_CLK_POL_INV;
break;
default:
return -EINVAL;
}
break;
case SND_SOC_DAIFMT_NB_IF:
dai_clk_mode |= DA7218_DAI_WCLK_POL_INV;
break;
case SND_SOC_DAIFMT_IB_NF:
dai_clk_mode |= DA7218_DAI_CLK_POL_INV;
break;
case SND_SOC_DAIFMT_IB_IF:
dai_clk_mode |= DA7218_DAI_WCLK_POL_INV | DA7218_DAI_CLK_POL_INV;
case SND_SOC_DAIFMT_DSP_B:
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
dai_clk_mode |= DA7218_DAI_CLK_POL_INV;
break;
case SND_SOC_DAIFMT_NB_IF:
dai_clk_mode |= DA7218_DAI_WCLK_POL_INV |
DA7218_DAI_CLK_POL_INV;
break;
case SND_SOC_DAIFMT_IB_NF:
break;
case SND_SOC_DAIFMT_IB_IF:
dai_clk_mode |= DA7218_DAI_WCLK_POL_INV;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;