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ASoC: pcm3168a: add I2S/Left_J TDM support 

pcm3168a is supporting TDM on I2S/Left_J, but there is no
settings for it. This patch add it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Kuninori Morimoto 2018-10-12 06:31:49 +00:00 committed by Mark Brown
parent 594680ea4a
commit 471a7ba891
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GPG Key ID: 24D68B725D5487D0
1 changed files with 19 additions and 0 deletions
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19
sound/soc/codecs/pcm3168a.c
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@ -33,6 +33,8 @@
#define PCM3168A_FMT_RIGHT_J_16 0x3
#define PCM3168A_FMT_DSP_A 0x4
#define PCM3168A_FMT_DSP_B 0x5
#define PCM3168A_FMT_I2S_TDM 0x6
#define PCM3168A_FMT_LEFT_J_TDM 0x7
#define PCM3168A_FMT_DSP_MASK 0x4
#define PCM3168A_NUM_SUPPLIES 6
@ -401,9 +403,11 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
bool tx, master_mode;
u32 val, mask, shift, reg;
unsigned int rate, fmt, ratio, max_ratio;
unsigned int chan;
int i, min_frame_size;
rate = params_rate(params);
chan = params_channels(params);
ratio = pcm3168a->sysclk / rate;
@ -456,6 +460,21 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
/* for TDM */
if (chan > 2) {
switch (fmt) {
case PCM3168A_FMT_I2S:
fmt = PCM3168A_FMT_I2S_TDM;
break;
case PCM3168A_FMT_LEFT_J:
fmt = PCM3168A_FMT_LEFT_J_TDM;
break;
default:
dev_err(component->dev, "TDM is supported under I2S/Left_J only\n");
return -EINVAL;
}
}
if (master_mode)
val = ((i + 1) << shift);
else