diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 6d7ea1f1c402..68d84f0af67e 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -461,6 +461,8 @@ static int fsl_ssi_hw_params(struct snd_pcm_substream *substream, snd_pcm_format_width(params_format(hw_params)); u32 wl = CCSR_SSI_SxCCR_WL(sample_size); int enabled = read_ssi(&ssi->scr) & CCSR_SSI_SCR_SSIEN; + unsigned int channels = params_channels(hw_params); + static u8 i2s_mode; int ret; /* @@ -495,6 +497,20 @@ static int fsl_ssi_hw_params(struct snd_pcm_substream *substream, else write_ssi_mask(&ssi->srccr, CCSR_SSI_SxCCR_WL_MASK, wl); + /* Save i2s mode configuration so that we can restore it later */ + switch (read_ssi(&ssi->scr) & CCSR_SSI_SCR_I2S_MODE_MASK) { + case CCSR_SSI_SCR_I2S_MODE_SLAVE: + case CCSR_SSI_SCR_I2S_MODE_MASTER: + i2s_mode = read_ssi(&ssi->scr) & CCSR_SSI_SCR_I2S_MODE_MASK; + default: + break; + } + + write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_NET, + channels == 1 ? 0 : CCSR_SSI_SCR_NET); + write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_I2S_MODE_MASK, + channels == 1 ? 0 : i2s_mode); + return 0; } @@ -820,14 +836,13 @@ static const struct snd_soc_dai_ops fsl_ssi_dai_ops = { static struct snd_soc_dai_driver fsl_ssi_dai_template = { .probe = fsl_ssi_dai_probe, .playback = { - /* The SSI does not support monaural audio. */ - .channels_min = 2, + .channels_min = 1, .channels_max = 2, .rates = FSLSSI_I2S_RATES, .formats = FSLSSI_I2S_FORMATS, }, .capture = { - .channels_min = 2, + .channels_min = 1, .channels_max = 2, .rates = FSLSSI_I2S_RATES, .formats = FSLSSI_I2S_FORMATS, |