diff options
Diffstat (limited to 'sound/soc/omap/omap-mcbsp.c')
| -rw-r--r-- | sound/soc/omap/omap-mcbsp.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index 478d6077845..4314647e735 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, |