ASoC: Add FSI-AK4642 sound support for SuperH

This patch is tested by ms7724se

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 117 insertions, 0 deletions

diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig
index 01943a188cff..9154b4363db3 100644
--- a/sound/soc/sh/Kconfig
+++ b/sound/soc/sh/Kconfig
@@ -40,4 +40,12 @@ config SND_SH7760_AC97
           This option enables generic sound support for the first
           AC97 unit of the SH7760.
 
+config SND_FSI_AK4642
+        bool "FSI-AK4642 sound support"
+        depends on SND_SOC_SH4_FSI
+        select SND_SOC_AK4642
+        help
+          This option enables generic sound support for the
+          FSI - AK4642 unit
+
 endmenu
diff --git a/sound/soc/sh/Makefile b/sound/soc/sh/Makefile
index 9fbcc4ac9420..a6997872f24e 100644
--- a/sound/soc/sh/Makefile
+++ b/sound/soc/sh/Makefile
@@ -12,5 +12,7 @@ obj-$(CONFIG_SND_SOC_SH4_FSI)	+= snd-soc-fsi.o
 
 ## boards
 snd-soc-sh7760-ac97-objs        := sh7760-ac97.o
+snd-soc-fsi-ak4642-objs         := fsi-ak4642.o
 
 obj-$(CONFIG_SND_SH7760_AC97)   += snd-soc-sh7760-ac97.o
+obj-$(CONFIG_SND_FSI_AK4642)    += snd-soc-fsi-ak4642.o
diff --git a/sound/soc/sh/fsi-ak4642.c b/sound/soc/sh/fsi-ak4642.c
new file mode 100644
index 000000000000..c7af09729c6e
--- /dev/null
+++ b/sound/soc/sh/fsi-ak4642.c
@@ -0,0 +1,107 @@
+/*
+ * FSI-AK464x sound support for ms7724se
+ *
+ * Copyright (C) 2009 Renesas Solutions Corp.
+ * Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <sound/sh_fsi.h>
+#include <../sound/soc/codecs/ak4642.h>
+
+static struct snd_soc_dai_link fsi_dai_link = {
+        .name           = "AK4642",
+        .stream_name    = "AK4642",
+        .cpu_dai        = &fsi_soc_dai[0], /* fsi */
+        .codec_dai      = &ak4642_dai,
+        .ops            = NULL,
+};
+
+static struct snd_soc_card fsi_soc_card  = {
+        .name           = "FSI",
+        .platform       = &fsi_soc_platform,
+        .dai_link       = &fsi_dai_link,
+        .num_links      = 1,
+};
+
+static struct snd_soc_device fsi_snd_devdata = {
+        .card           = &fsi_soc_card,
+        .codec_dev      = &soc_codec_dev_ak4642,
+};
+
+#define AK4642_BUS 0
+#define AK4642_ADR 0x12
+static int ak4642_add_i2c_device(void)
+{
+        struct i2c_board_info info;
+        struct i2c_adapter *adapter;
+        struct i2c_client *client;
+
+        memset(&info, 0, sizeof(struct i2c_board_info));
+        info.addr = AK4642_ADR;
+        strlcpy(info.type, "ak4642", I2C_NAME_SIZE);
+
+        adapter = i2c_get_adapter(AK4642_BUS);
+        if (!adapter) {
+                printk(KERN_DEBUG "can't get i2c adapter\n");
+                return -ENODEV;
+        }
+
+        client = i2c_new_device(adapter, &info);
+        i2c_put_adapter(adapter);
+        if (!client) {
+                printk(KERN_DEBUG "can't add i2c device\n");
+                return -ENODEV;
+        }
+
+        return 0;
+}
+
+static struct platform_device *fsi_snd_device;
+
+static int __init fsi_ak4642_init(void)
+{
+        int ret = -ENOMEM;
+
+        ak4642_add_i2c_device();
+
+        fsi_snd_device = platform_device_alloc("soc-audio", -1);
+        if (!fsi_snd_device)
+                goto out;
+
+        platform_set_drvdata(fsi_snd_device,
+                             &fsi_snd_devdata);
+        fsi_snd_devdata.dev = &fsi_snd_device->dev;
+        ret = platform_device_add(fsi_snd_device);
+
+        if (ret)
+                platform_device_put(fsi_snd_device);
+
+out:
+        return ret;
+}
+
+static void __exit fsi_ak4642_exit(void)
+{
+        platform_device_unregister(fsi_snd_device);
+}
+
+module_init(fsi_ak4642_init);
+module_exit(fsi_ak4642_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
+MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");