From 22313eafe92aeec1db9839f5afb71675bf2a5c33 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 10 Feb 2010 10:42:33 +0000
Subject: [PATCH] ASoC: add phycore-ac97 sound support

This patch adds sound support for Phytec PhyCORE / PhyCARD
modules in AC97 mode.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/imx/Makefile       |  2 +
 sound/soc/imx/phycore-ac97.c | 90 ++++++++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 sound/soc/imx/phycore-ac97.c

diff --git a/sound/soc/imx/Makefile b/sound/soc/imx/Makefile
index d05cc95c5cc4..9f8bb92ddfcc 100644
--- a/sound/soc/imx/Makefile
+++ b/sound/soc/imx/Makefile
@@ -8,3 +8,5 @@ endif
 obj-$(CONFIG_SND_IMX_SOC) += snd-soc-imx.o
 
 # i.MX Machine Support
+snd-soc-phycore-ac97-objs := phycore-ac97.o
+obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
diff --git a/sound/soc/imx/phycore-ac97.c b/sound/soc/imx/phycore-ac97.c
new file mode 100644
index 000000000000..a8307d55c70e
--- /dev/null
+++ b/sound/soc/imx/phycore-ac97.c
@@ -0,0 +1,90 @@
+/*
+ * phycore-ac97.c  --  SoC audio for imx_phycore in AC97 mode
+ *
+ * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <asm/mach-types.h>
+
+#include "../codecs/wm9712.h"
+#include "imx-ssi.h"
+
+static struct snd_soc_card imx_phycore;
+
+static struct snd_soc_ops imx_phycore_hifi_ops = {
+};
+
+static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
+	{
+		.name		= "HiFi",
+		.stream_name	= "HiFi",
+		.codec_dai	= &wm9712_dai[WM9712_DAI_AC97_HIFI],
+		.ops		= &imx_phycore_hifi_ops,
+	},
+};
+
+static struct snd_soc_card imx_phycore = {
+	.name		= "PhyCORE-audio",
+	.platform	= &imx_soc_platform,
+	.dai_link	= imx_phycore_dai_ac97,
+	.num_links	= ARRAY_SIZE(imx_phycore_dai_ac97),
+};
+
+static struct snd_soc_device imx_phycore_snd_devdata = {
+	.card		= &imx_phycore,
+	.codec_dev	= &soc_codec_dev_wm9712,
+};
+
+static struct platform_device *imx_phycore_snd_device;
+
+static int __init imx_phycore_init(void)
+{
+	int ret;
+
+	if (!machine_is_pcm043() && !machine_is_pca100())
+		/* return happy. We might run on a totally different machine */
+		return 0;
+
+	imx_phycore_snd_device = platform_device_alloc("soc-audio", -1);
+	if (!imx_phycore_snd_device)
+		return -ENOMEM;
+
+	imx_phycore_dai_ac97[0].cpu_dai = &imx_ssi_pcm_dai[0];
+
+	platform_set_drvdata(imx_phycore_snd_device, &imx_phycore_snd_devdata);
+	imx_phycore_snd_devdata.dev = &imx_phycore_snd_device->dev;
+	ret = platform_device_add(imx_phycore_snd_device);
+
+	if (ret) {
+		printk(KERN_ERR "ASoC: Platform device allocation failed\n");
+		platform_device_put(imx_phycore_snd_device);
+	}
+
+	return ret;
+}
+
+static void __exit imx_phycore_exit(void)
+{
+	platform_device_unregister(imx_phycore_snd_device);
+}
+
+late_initcall(imx_phycore_init);
+module_exit(imx_phycore_exit);
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
+MODULE_LICENSE("GPL");