![](https://secure.gravatar.com/avatar/17cf2dea6ba279c410bce85a7ef39394.jpg?s=120&d=mm&r=g)
Currently, pcm512x driver supports only I2S data format. This commit adds RJ, LJ, DSP_A and DSP_B as well.
I don't expect regression WRT existing sound cards, because:
* default value in corresponding register of pcm512x codec is 0 == I2S * existing in-tree sound cards with pcm512x codec are configured for I2S * i don't see how existing off-tree sound cards with pcm512x codec could be configured differently - it would not work * tested explicitly, that there is no regression with Raspberry Pi + sound card `sound/soc/bcm/hifiberry_dacplus.c`
Signed-off-by: Kirill Marinushkin kmarinushkin@birdec.com Cc: Mark Brown broonie@kernel.org Cc: Takashi Iwai tiwai@suse.com Cc: Liam Girdwood lgirdwood@gmail.com Cc: Matthias Reichl hias@horus.com Cc: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Cc: Peter Ujfalusi peter.ujfalusi@ti.com Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org --- sound/soc/codecs/pcm512x.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+)
diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c index 8153d3d01654..e309227649e7 100644 --- a/sound/soc/codecs/pcm512x.c +++ b/sound/soc/codecs/pcm512x.c @@ -1167,6 +1167,8 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); int alen; + int afmt; + int offset = 0; int gpio; int clock_output; int master_mode; @@ -1195,6 +1197,28 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream, return -EINVAL; }
+ switch (pcm512x->fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + afmt = PCM512x_AFMT_I2S; + break; + case SND_SOC_DAIFMT_RIGHT_J: + afmt = PCM512x_AFMT_RTJ; + break; + case SND_SOC_DAIFMT_LEFT_J: + afmt = PCM512x_AFMT_LTJ; + break; + case SND_SOC_DAIFMT_DSP_A: + offset = 1; + fallthrough; + case SND_SOC_DAIFMT_DSP_B: + afmt = PCM512x_AFMT_DSP; + break; + default: + dev_err(component->dev, "unsupported DAI format: 0x%x\n", + pcm512x->fmt); + return -EINVAL; + } + switch (pcm512x->fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: ret = regmap_update_bits(pcm512x->regmap, @@ -1236,6 +1260,20 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream, return ret; }
+ ret = regmap_update_bits(pcm512x->regmap, PCM512x_I2S_1, + PCM512x_AFMT, afmt); + if (ret != 0) { + dev_err(component->dev, "Failed to set data format: %d\n", ret); + return ret; + } + + ret = regmap_update_bits(pcm512x->regmap, PCM512x_I2S_2, + 0xFF, offset); + if (ret != 0) { + dev_err(component->dev, "Failed to set data offset: %d\n", ret); + return ret; + } + if (pcm512x->pll_out) { ret = regmap_write(pcm512x->regmap, PCM512x_FLEX_A, 0x11); if (ret != 0) {