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path: root/sound/soc/omap/omap-mcbsp.c
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Diffstat (limited to 'sound/soc/omap/omap-mcbsp.c')
-rw-r--r--sound/soc/omap/omap-mcbsp.c27
1 files changed, 19 insertions, 8 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 478d60778453..4314647e735e 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -317,6 +317,10 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
return 0;
}
+ regs->rcr2 &= ~(RPHASE | RFRLEN2(0x7f) | RWDLEN2(7));
+ regs->xcr2 &= ~(RPHASE | XFRLEN2(0x7f) | XWDLEN2(7));
+ regs->rcr1 &= ~(RFRLEN1(0x7f) | RWDLEN1(7));
+ regs->xcr1 &= ~(XFRLEN1(0x7f) | XWDLEN1(7));
format = mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
wpf = channels = params_channels(params);
if (channels == 2 && (format == SND_SOC_DAIFMT_I2S ||
@@ -369,6 +373,8 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
framesize = wlen * channels;
/* Set FS period and length in terms of bit clock periods */
+ regs->srgr2 &= ~FPER(0xfff);
+ regs->srgr1 &= ~FWID(0xff);
switch (format) {
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_LEFT_J:
@@ -398,7 +404,7 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
{
struct omap_mcbsp_data *mcbsp_data = snd_soc_dai_get_drvdata(cpu_dai);
struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs;
- unsigned int temp_fmt = fmt;
+ bool inv_fs = false;
if (mcbsp_data->configured)
return 0;
@@ -430,21 +436,21 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
regs->xcr2 |= XDATDLY(0);
regs->spcr1 |= RJUST(2);
/* Invert FS polarity configuration */
- temp_fmt ^= SND_SOC_DAIFMT_NB_IF;
+ inv_fs = true;
break;
case SND_SOC_DAIFMT_DSP_A:
/* 1-bit data delay */
regs->rcr2 |= RDATDLY(1);
regs->xcr2 |= XDATDLY(1);
/* Invert FS polarity configuration */
- temp_fmt ^= SND_SOC_DAIFMT_NB_IF;
+ inv_fs = true;
break;
case SND_SOC_DAIFMT_DSP_B:
/* 0-bit data delay */
regs->rcr2 |= RDATDLY(0);
regs->xcr2 |= XDATDLY(0);
/* Invert FS polarity configuration */
- temp_fmt ^= SND_SOC_DAIFMT_NB_IF;
+ inv_fs = true;
break;
default:
/* Unsupported data format */
@@ -468,7 +474,7 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
}
/* Set bit clock (CLKX/CLKR) and FS polarities */
- switch (temp_fmt & SND_SOC_DAIFMT_INV_MASK) {
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
/*
* Normal BCLK + FS.
@@ -489,6 +495,8 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
default:
return -EINVAL;
}
+ if (inv_fs == true)
+ regs->pcr0 ^= FSXP | FSRP;
return 0;
}
@@ -503,6 +511,7 @@ static int omap_mcbsp_dai_set_clkdiv(struct snd_soc_dai *cpu_dai,
return -ENODEV;
mcbsp_data->clk_div = div;
+ regs->srgr1 &= ~CLKGDV(0xff);
regs->srgr1 |= CLKGDV(div - 1);
return 0;
@@ -516,11 +525,12 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs;
int err = 0;
- if (mcbsp_data->active)
+ if (mcbsp_data->active) {
if (freq == mcbsp_data->in_freq)
return 0;
else
return -EBUSY;
+ }
/* The McBSP signal muxing functions are only available on McBSP1 */
if (clk_id == OMAP_MCBSP_CLKR_SRC_CLKR ||
@@ -531,6 +541,8 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
return -EINVAL;
mcbsp_data->in_freq = freq;
+ regs->srgr2 &= ~CLKSM;
+ regs->pcr0 &= ~SCLKME;
switch (clk_id) {
case OMAP_MCBSP_SYSCLK_CLK:
@@ -605,8 +617,7 @@ static int mcbsp_dai_probe(struct snd_soc_dai *dai)
return 0;
}
-static struct snd_soc_dai_driver omap_mcbsp_dai =
-{
+static struct snd_soc_dai_driver omap_mcbsp_dai = {
.probe = mcbsp_dai_probe,
.playback = {
.channels_min = 1,