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>

1 files changed, 65 insertions, 0 deletions

diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 8a05c5b0b9b8..16187d66255c 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/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;