From: Jarkko Nikula Date: Fri, 30 Sep 2011 07:55:32 +0000 (+0300) Subject: ASoC: omap-mcbsp: Fix FS polarity for LEFT_J, DSP_A and DSP_B formats X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=91a18ae8ffc05ffd445c5b40e5ca266888b360ce;p=openwrt%2Fstaging%2Fblogic.git ASoC: omap-mcbsp: Fix FS polarity for LEFT_J, DSP_A and DSP_B formats Commit 75d9ac4 ("ASoC: Allow DAI formats to be specified in the dai_link") changed DAI format flag values and we cannot simply invert anymore e.g. frame-sync with ^= SND_SOC_DAIFMT_NB_IF (which was anyway misuse) as there is no anymore fixed bit position for bit-clock or frame-sync inversion. Fix this by relying only on DAI format flag values passed to us and by not making any assumption on individual bit positions. Signed-off-by: Jarkko Nikula Acked-by: Peter Ujfalusi Signed-off-by: Mark Brown --- diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index 1391ea0dd3ce..894f2f33f508 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c @@ -398,7 +398,7 @@ 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 +430,21 @@ 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 +468,7 @@ 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 +489,8 @@ 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; }