openwrt/target/linux/layerscape/patches-5.4/801-audio-0022-ASoC-fsl_sai-set-specific-fmt-for-I2S-XTOR.patch

From 307e37122cc14b5b305639c18ea575ebe623da2f Mon Sep 17 00:00:00 2001
From: Viorel Suman <viorel.suman@nxp.com>
Date: Sun, 30 Apr 2017 17:05:52 +0300
Subject: [PATCH] ASoC: fsl_sai: set specific fmt for I2S XTOR

Set specific fmt, for i2s xtor receiver is
in slave mode and i2s xtor transmitter is in master mode.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
---
 sound/soc/fsl/fsl_sai.c | 12 ++++++++++++
 sound/soc/fsl/fsl_sai.h |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -335,14 +335,23 @@ static int fsl_sai_set_dai_fmt_tr(struct
 
 static int fsl_sai_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
 {
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
 	int ret;
 
+	if (sai->i2s_xtor)
+		fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+		      SND_SOC_DAIFMT_CBS_CFS;
+
 	ret = fsl_sai_set_dai_fmt_tr(cpu_dai, fmt, FSL_FMT_TRANSMITTER);
 	if (ret) {
 		dev_err(cpu_dai->dev, "Cannot set tx format: %d\n", ret);
 		return ret;
 	}
 
+	if (sai->i2s_xtor)
+		fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+		      SND_SOC_DAIFMT_CBM_CFM;
+
 	ret = fsl_sai_set_dai_fmt_tr(cpu_dai, fmt, FSL_FMT_RECEIVER);
 	if (ret)
 		dev_err(cpu_dai->dev, "Cannot set rx format: %d\n", ret);
@@ -974,6 +983,9 @@ static int fsl_sai_probe(struct platform
 		return -EINVAL;
 	}
 
+	/* I2S XTOR mode */
+	sai->i2s_xtor = (of_find_property(np, "fsl,i2s-xtor", NULL) != NULL);
+
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_err(&pdev->dev, "no irq for node %s\n", pdev->name);
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -160,7 +160,7 @@ struct fsl_sai {
 	bool slave_mode[2];
 	bool is_lsb_first;
 	bool is_dsp_mode;
-	bool sai_on_imx;
+	bool i2s_xtor;
 	bool synchronous[2];
 	bool is_stream_opened[2];
 	unsigned int dataline[2];