From: Nicolin Chen <Guangyu.Chen@freescale.com>
Date: Tue, 1 Apr 2014 11:34:09 +0000 (+0800)
Subject: ASoC: fsl_sai: Add imx6sx platform support
X-Git-Tag: firefly_0821_release~176^2~3750^2~24^2~19^5~3
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c754064453e0d48043bd6a111f5c1f8ef1b75f7e;p=firefly-linux-kernel-4.4.55.git

ASoC: fsl_sai: Add imx6sx platform support

The next coming i.MX6 Solo X SoC also contains SAI module while we use
imp_pcm_init() for i.MX platform.

So this patch adds one compatible route for imx6sx and updates the DT
doc accordingly.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt
index 98611a6761c0..35c09fe5847a 100644
--- a/Documentation/devicetree/bindings/sound/fsl-sai.txt
+++ b/Documentation/devicetree/bindings/sound/fsl-sai.txt
@@ -7,7 +7,7 @@ codec/DSP interfaces.
 
 
 Required properties:
-- compatible: Compatible list, contains "fsl,vf610-sai".
+- compatible: Compatible list, contains "fsl,vf610-sai" or "fsl,imx6sx-sai".
 - reg: Offset and length of the register set for the device.
 - clocks: Must contain an entry for each entry in clock-names.
 - clock-names : Must include the "sai" entry.
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 21de5bd1c9c5..dde084273c64 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -22,6 +22,7 @@
 #include <sound/pcm_params.h>
 
 #include "fsl_sai.h"
+#include "imx-pcm.h"
 
 #define FSL_SAI_FLAGS (FSL_SAI_CSR_SEIE |\
 		       FSL_SAI_CSR_FEIE)
@@ -592,6 +593,9 @@ static int fsl_sai_probe(struct platform_device *pdev)
 
 	sai->pdev = pdev;
 
+	if (of_device_is_compatible(pdev->dev.of_node, "fsl,imx6sx-sai"))
+		sai->sai_on_imx = true;
+
 	sai->big_endian_regs = of_property_read_bool(np, "big-endian-regs");
 	if (sai->big_endian_regs)
 		fsl_sai_regmap_config.val_format_endian = REGMAP_ENDIAN_BIG;
@@ -634,12 +638,16 @@ static int fsl_sai_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL,
-			SND_DMAENGINE_PCM_FLAG_NO_RESIDUE);
+	if (sai->sai_on_imx)
+		return imx_pcm_dma_init(pdev);
+	else
+		return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL,
+				SND_DMAENGINE_PCM_FLAG_NO_RESIDUE);
 }
 
 static const struct of_device_id fsl_sai_ids[] = {
 	{ .compatible = "fsl,vf610-sai", },
+	{ .compatible = "fsl,imx6sx-sai", },
 	{ /* sentinel */ }
 };
 
diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h
index be26d46ee737..677670d62fcd 100644
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -130,6 +130,7 @@ struct fsl_sai {
 	bool big_endian_regs;
 	bool big_endian_data;
 	bool is_dsp_mode;
+	bool sai_on_imx;
 
 	struct snd_dmaengine_dai_dma_data dma_params_rx;
 	struct snd_dmaengine_dai_dma_data dma_params_tx;