X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=sound%2Fsoc%2Fomap%2Fomap-mcbsp.c;h=495192af8c2ea51d12f2b1a4f5f33679148ed7fa;hb=9b5b0c01598f9782690b09ce6c49f4ba116dde44;hp=9126142838486926c00fbb3b6586c06f9b1c696b;hpb=b08f7a62cafd7998862072a1c353219e3d84bbef;p=karo-tx-linux.git

diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 912614283848..495192af8c2e 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -215,8 +215,9 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
 	struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
 	struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs;
 	int dma, bus_id = mcbsp_data->bus_id, id = cpu_dai->id;
-	int wlen, channels;
+	int wlen, channels, wpf;
 	unsigned long port;
+	unsigned int format;
 
 	if (cpu_class_is_omap1()) {
 		dma = omap1_dma_reqs[bus_id][substream->stream];
@@ -244,18 +245,23 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
 		return 0;
 	}
 
-	channels = params_channels(params);
+	format = mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+	wpf = channels = params_channels(params);
 	switch (channels) {
 	case 2:
-		/* Use dual-phase frames */
-		regs->rcr2	|= RPHASE;
-		regs->xcr2	|= XPHASE;
+		if (format == SND_SOC_DAIFMT_I2S) {
+			/* Use dual-phase frames */
+			regs->rcr2	|= RPHASE;
+			regs->xcr2	|= XPHASE;
+			/* Set 1 word per (McBSP) frame for phase1 and phase2 */
+			wpf--;
+			regs->rcr2	|= RFRLEN2(wpf - 1);
+			regs->xcr2	|= XFRLEN2(wpf - 1);
+		}
 	case 1:
-		/* Set 1 word per (McBSP) frame */
-		regs->rcr2	|= RFRLEN2(1 - 1);
-		regs->rcr1	|= RFRLEN1(1 - 1);
-		regs->xcr2	|= XFRLEN2(1 - 1);
-		regs->xcr1	|= XFRLEN1(1 - 1);
+		/* Set word per (McBSP) frame for phase1 */
+		regs->rcr1	|= RFRLEN1(wpf - 1);
+		regs->xcr1	|= XFRLEN1(wpf - 1);
 		break;
 	default:
 		/* Unsupported number of channels */
@@ -277,11 +283,12 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	/* Set FS period and length in terms of bit clock periods */
-	switch (mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	switch (format) {
 	case SND_SOC_DAIFMT_I2S:
-		regs->srgr2	|= FPER(wlen * 2 - 1);
+		regs->srgr2	|= FPER(wlen * channels - 1);
 		regs->srgr1	|= FWID(wlen - 1);
 		break;
+	case SND_SOC_DAIFMT_DSP_A:
 	case SND_SOC_DAIFMT_DSP_B:
 		regs->srgr2	|= FPER(wlen * channels - 1);
 		regs->srgr1	|= FWID(0);
@@ -326,6 +333,13 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
 		regs->rcr2	|= RDATDLY(1);
 		regs->xcr2	|= XDATDLY(1);
 		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;
+		break;
 	case SND_SOC_DAIFMT_DSP_B:
 		/* 0-bit data delay */
 		regs->rcr2      |= RDATDLY(0);