diff options
Diffstat (limited to 'sound/soc/meson/aiu-encoder-i2s.c')
| -rw-r--r-- | sound/soc/meson/aiu-encoder-i2s.c | 47 |
1 files changed, 8 insertions, 39 deletions
diff --git a/sound/soc/meson/aiu-encoder-i2s.c b/sound/soc/meson/aiu-encoder-i2s.c index 832e22d275fe..3b4061508c18 100644 --- a/sound/soc/meson/aiu-encoder-i2s.c +++ b/sound/soc/meson/aiu-encoder-i2s.c @@ -18,7 +18,6 @@ #define AIU_RST_SOFT_I2S_FAST BIT(0) #define AIU_I2S_DAC_CFG_MSB_FIRST BIT(2) -#define AIU_I2S_MISC_HOLD_EN BIT(2) #define AIU_CLK_CTRL_I2S_DIV_EN BIT(0) #define AIU_CLK_CTRL_I2S_DIV GENMASK(3, 2) #define AIU_CLK_CTRL_AOCLK_INVERT BIT(6) @@ -36,47 +35,15 @@ static void aiu_encoder_i2s_divider_enable(struct snd_soc_component *component, enable ? AIU_CLK_CTRL_I2S_DIV_EN : 0); } -static void aiu_encoder_i2s_hold(struct snd_soc_component *component, - bool enable) -{ - snd_soc_component_update_bits(component, AIU_I2S_MISC, - AIU_I2S_MISC_HOLD_EN, - enable ? AIU_I2S_MISC_HOLD_EN : 0); -} - -static int aiu_encoder_i2s_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct snd_soc_component *component = dai->component; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - aiu_encoder_i2s_hold(component, false); - return 0; - - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - aiu_encoder_i2s_hold(component, true); - return 0; - - default: - return -EINVAL; - } -} - static int aiu_encoder_i2s_setup_desc(struct snd_soc_component *component, struct snd_pcm_hw_params *params) { /* Always operate in split (classic interleaved) mode */ unsigned int desc = AIU_I2S_SOURCE_DESC_MODE_SPLIT; - unsigned int val; /* Reset required to update the pipeline */ snd_soc_component_write(component, AIU_RST_SOFT, AIU_RST_SOFT_I2S_FAST); - snd_soc_component_read(component, AIU_I2S_SYNC, &val); + snd_soc_component_read(component, AIU_I2S_SYNC); switch (params_physical_width(params)) { case 16: /* Nothing to do */ @@ -262,15 +229,19 @@ static int aiu_encoder_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) unsigned int skew; /* Only CPU Master / Codec Slave supported ATM */ - if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) + if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) != SND_SOC_DAIFMT_BP_FP) return -EINVAL; if (inv == SND_SOC_DAIFMT_NB_IF || inv == SND_SOC_DAIFMT_IB_IF) val |= AIU_CLK_CTRL_LRCLK_INVERT; - if (inv == SND_SOC_DAIFMT_IB_NF || - inv == SND_SOC_DAIFMT_IB_IF) + /* + * The SoC changes data on the rising edge of the bitclock + * so an inversion of the bitclock is required in normal mode + */ + if (inv == SND_SOC_DAIFMT_NB_NF || + inv == SND_SOC_DAIFMT_NB_IF) val |= AIU_CLK_CTRL_AOCLK_INVERT; /* Signal skew */ @@ -354,7 +325,6 @@ static void aiu_encoder_i2s_shutdown(struct snd_pcm_substream *substream, } const struct snd_soc_dai_ops aiu_encoder_i2s_dai_ops = { - .trigger = aiu_encoder_i2s_trigger, .hw_params = aiu_encoder_i2s_hw_params, .hw_free = aiu_encoder_i2s_hw_free, .set_fmt = aiu_encoder_i2s_set_fmt, @@ -362,4 +332,3 @@ const struct snd_soc_dai_ops aiu_encoder_i2s_dai_ops = { .startup = aiu_encoder_i2s_startup, .shutdown = aiu_encoder_i2s_shutdown, }; - |