diff options
Diffstat (limited to 'sound/soc/pxa/pxa-ssp.c')
| -rw-r--r-- | sound/soc/pxa/pxa-ssp.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c index 3e18064e86b..d3fa6357a9f 100644 --- a/sound/soc/pxa/pxa-ssp.c +++ b/sound/soc/pxa/pxa-ssp.c @@ -300,7 +300,7 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai, int val; u32 sscr0 = ssp_read_reg(ssp, SSCR0) & - ~(SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ADC); + ~(SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ACS); dev_dbg(&ssp->pdev->dev, "pxa_ssp_set_dai_sysclk id: %d, clk_id %d, freq %d\n", @@ -328,7 +328,7 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai, case PXA_SSP_CLK_AUDIO: priv->sysclk = 0; ssp_set_scr(&priv->dev, 1); - sscr0 |= SSCR0_ADC; + sscr0 |= SSCR0_ACS; break; default: return -ENODEV; @@ -522,9 +522,20 @@ static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai, u32 sscr1; u32 sspsp; + /* check if we need to change anything at all */ + if (priv->dai_fmt == fmt) + return 0; + + /* we can only change the settings if the port is not in use */ + if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE) { + dev_err(&ssp->pdev->dev, + "can't change hardware dai format: stream is in use"); + return -EINVAL; + } + /* reset port settings */ sscr0 = ssp_read_reg(ssp, SSCR0) & - (SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ADC); + (SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ACS); sscr1 = SSCR1_RxTresh(8) | SSCR1_TxTresh(7); sspsp = 0; @@ -644,8 +655,7 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, sscr0 |= SSCR0_FPCKE; #endif sscr0 |= SSCR0_DataSize(16); - if (params_channels(params) > 1) - sscr0 |= SSCR0_EDSS; + /* use network mode (2 slots) for 16 bit stereo */ break; case SNDRV_PCM_FORMAT_S24_LE: sscr0 |= (SSCR0_EDSS | SSCR0_DataSize(8)); |