diff options
| author | Olivier Moysan <olivier.moysan@st.com> | 2017-10-19 15:03:18 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-10-21 12:17:49 +0200 |
| commit | 61fb4ff70377cd2c49a3487bdb0156eba6930072 (patch) | |
| tree | 553ac21dc2a9f06f0dc3358da0921e1ac83a1123 /sound | |
| parent | ASoC: stm32: Add synchronization to SAI bindings (diff) | |
| download | linux-61fb4ff70377cd2c49a3487bdb0156eba6930072.tar.xz linux-61fb4ff70377cd2c49a3487bdb0156eba6930072.zip | |
ASoC: stm32: sai: Move static settings to DAI init
Audio interface direction and protocol settings does not change
at runtime. So, these settings are moved from hw_params
function to dai_probe and set_fmt.
Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/stm/stm32_sai_sub.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c index dde8ddf9e777..815ef1036199 100644 --- a/sound/soc/stm/stm32_sai_sub.c +++ b/sound/soc/stm/stm32_sai_sub.c @@ -308,12 +308,15 @@ static int stm32_sai_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, static int stm32_sai_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) { struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai); - int cr1 = 0, frcr = 0; - int cr1_mask = 0, frcr_mask = 0; + int cr1, frcr = 0; + int cr1_mask, frcr_mask = 0; int ret; dev_dbg(cpu_dai->dev, "fmt %x\n", fmt); + cr1_mask = SAI_XCR1_PRTCFG_MASK; + cr1 = SAI_XCR1_PRTCFG_SET(SAI_FREE_PROTOCOL); + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { /* SCK active high for all protocols */ case SND_SOC_DAIFMT_I2S: @@ -340,7 +343,7 @@ static int stm32_sai_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) return -EINVAL; } - cr1_mask |= SAI_XCR1_PRTCFG_MASK | SAI_XCR1_CKSTR; + cr1_mask |= SAI_XCR1_CKSTR; frcr_mask |= SAI_XFRCR_FSPOL | SAI_XFRCR_FSOFF | SAI_XFRCR_FSDEF; @@ -458,7 +461,7 @@ static int stm32_sai_set_config(struct snd_soc_dai *cpu_dai, SAI_XCR2_FTH_SET(STM_SAI_FIFO_TH_HALF)); /* Mode, data format and channel config */ - cr1 = SAI_XCR1_PRTCFG_SET(SAI_FREE_PROTOCOL); + cr1_mask = SAI_XCR1_DS_MASK; switch (params_format(params)) { case SNDRV_PCM_FORMAT_S8: cr1 |= SAI_XCR1_DS_SET(SAI_DATASIZE_8); @@ -473,11 +476,6 @@ static int stm32_sai_set_config(struct snd_soc_dai *cpu_dai, dev_err(cpu_dai->dev, "Data format not supported"); return -EINVAL; } - cr1_mask = SAI_XCR1_DS_MASK | SAI_XCR1_PRTCFG_MASK; - - cr1_mask |= SAI_XCR1_RX_TX; - if (STM_SAI_IS_CAPTURE(sai)) - cr1 |= SAI_XCR1_RX_TX; cr1_mask |= SAI_XCR1_MONO; if ((sai->slots == 2) && (params_channels(params) == 1)) @@ -729,6 +727,7 @@ static void stm32_sai_shutdown(struct snd_pcm_substream *substream, static int stm32_sai_dai_probe(struct snd_soc_dai *cpu_dai) { struct stm32_sai_sub_data *sai = dev_get_drvdata(cpu_dai->dev); + int cr1 = 0, cr1_mask; sai->dma_params.addr = (dma_addr_t)(sai->phys_addr + STM_SAI_DR_REGX); /* @@ -745,7 +744,11 @@ static int stm32_sai_dai_probe(struct snd_soc_dai *cpu_dai) else snd_soc_dai_init_dma_data(cpu_dai, NULL, &sai->dma_params); - return 0; + cr1_mask = SAI_XCR1_RX_TX; + if (STM_SAI_IS_CAPTURE(sai)) + cr1 |= SAI_XCR1_RX_TX; + + return regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, cr1_mask, cr1); } static const struct snd_soc_dai_ops stm32_sai_pcm_dai_ops = { |