ASoC: Add sh_mobile_hdmi sound support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/video/sh_mobile_hdmi.c

@@ -22,6 +22,8 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
 
 #include <video/sh_mobile_hdmi.h>
 #include <video/sh_mobile_lcdc.h>
@@ -222,6 +224,62 @@ static u8 hdmi_read(struct sh_hdmi *hdmi, u8 reg)
 	return ioread8(hdmi->base + reg);
 }
 
+/************************************************************************
+
+
+			HDMI sound
+
+
+************************************************************************/
+static unsigned int sh_hdmi_snd_read(struct snd_soc_codec *codec,
+				     unsigned int reg)
+{
+	struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec);
+
+	return hdmi_read(hdmi, reg);
+}
+
+static int sh_hdmi_snd_write(struct snd_soc_codec *codec,
+			     unsigned int reg,
+			     unsigned int value)
+{
+	struct sh_hdmi *hdmi = snd_soc_codec_get_drvdata(codec);
+
+	hdmi_write(hdmi, value, reg);
+	return 0;
+}
+
+static struct snd_soc_dai_driver sh_hdmi_dai = {
+	.name = "sh_mobile_hdmi-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+	},
+};
+
+static int sh_hdmi_snd_probe(struct snd_soc_codec *codec)
+{
+	dev_info(codec->dev, "SH Mobile HDMI Audio Codec");
+
+	return 0;
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_sh_hdmi = {
+	.probe		= sh_hdmi_snd_probe,
+	.read		= sh_hdmi_snd_read,
+	.write		= sh_hdmi_snd_write,
+};
+
+/************************************************************************
+
+
+			HDMI video
+
+
+************************************************************************/
 /* External video parameter settings */
 static void hdmi_external_video_param(struct sh_hdmi *hdmi)
 {
@@ -910,6 +968,11 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	ret =  snd_soc_register_codec(&pdev->dev,
+			&soc_codec_dev_sh_hdmi, &sh_hdmi_dai, 1);
+	if (ret < 0)
+		goto egetclk;
+
 	hdmi->dev = &pdev->dev;
 
 	hdmi->hdmi_clk = clk_get(&pdev->dev, "ick");
@@ -1007,6 +1070,8 @@ static int __exit sh_hdmi_remove(struct platform_device *pdev)
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	int irq = platform_get_irq(pdev, 0);
 
+	snd_soc_unregister_codec(&pdev->dev);
+
 	pdata->lcd_chan->board_cfg.display_on = NULL;
 	pdata->lcd_chan->board_cfg.display_off = NULL;
 	pdata->lcd_chan->board_cfg.board_data = NULL;