diff options
| author | Nicolin Chen <nicoleotsuka@gmail.com> | 2018-02-12 23:03:20 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-02-21 13:30:56 +0100 |
| commit | a1d154ac2765cf982be0d4d378bc6ba342c467a3 (patch) | |
| tree | af42135d5c5dab6ac0b3c4f6cfffcf5f8a07665b /sound/soc/fsl/fsl_ssi.c | |
| parent | ASoC: fsl_ssi: Use snd_soc_init_dma_data instead (diff) | |
| download | linux-a1d154ac2765cf982be0d4d378bc6ba342c467a3.tar.xz linux-a1d154ac2765cf982be0d4d378bc6ba342c467a3.zip | |
ASoC: fsl_ssi: Move one-time configurations to probe()
The probe() could handle some one-time configurations since
they will not be changed once being configured.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Tested-by: Caleb Crome <caleb@crome.org>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/fsl/fsl_ssi.c')
| -rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 7e15b30d4f94..36f3d51c5c43 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -865,7 +865,6 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev, { struct regmap *regs = ssi->regs; u32 strcr = 0, stcr, srcr, scr, mask; - u8 wm; ssi->dai_fmt = fmt; @@ -874,8 +873,6 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev, return -EINVAL; } - fsl_ssi_setup_regvals(ssi); - regmap_read(regs, REG_SSI_SCR, &scr); scr &= ~(SSI_SCR_SYN | SSI_SCR_I2S_MODE_MASK); /* Synchronize frame sync clock for TE to avoid data slipping */ @@ -990,16 +987,6 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev, regmap_write(regs, REG_SSI_SRCR, srcr); regmap_write(regs, REG_SSI_SCR, scr); - wm = ssi->fifo_watermark; - - regmap_write(regs, REG_SSI_SFCSR, - SSI_SFCSR_TFWM0(wm) | SSI_SFCSR_RFWM0(wm) | - SSI_SFCSR_TFWM1(wm) | SSI_SFCSR_RFWM1(wm)); - - if (ssi->use_dual_fifo) - regmap_update_bits(regs, REG_SSI_SCR, - SSI_SCR_TCH_EN, SSI_SCR_TCH_EN); - if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_AC97) fsl_ssi_setup_ac97(ssi); @@ -1249,6 +1236,29 @@ static struct snd_ac97_bus_ops fsl_ssi_ac97_ops = { }; /** + * Initialize SSI registers + */ +static int fsl_ssi_hw_init(struct fsl_ssi *ssi) +{ + u32 wm = ssi->fifo_watermark; + + /* Initialize regvals */ + fsl_ssi_setup_regvals(ssi); + + /* Set watermarks */ + regmap_write(ssi->regs, REG_SSI_SFCSR, + SSI_SFCSR_TFWM0(wm) | SSI_SFCSR_RFWM0(wm) | + SSI_SFCSR_TFWM1(wm) | SSI_SFCSR_RFWM1(wm)); + + /* Enable Dual FIFO mode */ + if (ssi->use_dual_fifo) + regmap_update_bits(ssi->regs, REG_SSI_SCR, + SSI_SCR_TCH_EN, SSI_SCR_TCH_EN); + + return 0; +} + +/** * Make every character in a string lower-case */ static void make_lowercase(char *s) @@ -1533,6 +1543,9 @@ done: if (ssi->dai_fmt) _fsl_ssi_set_dai_fmt(dev, ssi, ssi->dai_fmt); + /* Initially configures SSI registers */ + fsl_ssi_hw_init(ssi); + if (fsl_ssi_is_ac97(ssi)) { u32 ssi_idx; |