Initial import

1 files changed, 88 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm8727.c b/sound/soc/codecs/wm8727.c
new file mode 100644
index 000000000..bb25a75f9
--- /dev/null
+++ b/sound/soc/codecs/wm8727.c
@@ -0,0 +1,88 @@
+/*
+ * wm8727.c
+ *
+ *  Created on: 15-Oct-2009
+ *      Author: neil.jones@imgtec.com
+ *
+ * Copyright (C) 2009 Imagination Technologies Ltd.
+ *
+ *  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/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+static const struct snd_soc_dapm_widget wm8727_dapm_widgets[] = {
+SND_SOC_DAPM_OUTPUT("VOUTL"),
+SND_SOC_DAPM_OUTPUT("VOUTR"),
+};
+
+static const struct snd_soc_dapm_route wm8727_dapm_routes[] = {
+	{ "VOUTL", NULL, "Playback" },
+	{ "VOUTR", NULL, "Playback" },
+};
+
+/*
+ * Note this is a simple chip with no configuration interface, sample rate is
+ * determined automatically by examining the Master clock and Bit clock ratios
+ */
+#define WM8727_RATES  (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
+			SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\
+			SNDRV_PCM_RATE_192000)
+
+
+static struct snd_soc_dai_driver wm8727_dai = {
+	.name = "wm8727-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = WM8727_RATES,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+		},
+};
+
+static struct snd_soc_codec_driver soc_codec_dev_wm8727 = {
+	.dapm_widgets = wm8727_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(wm8727_dapm_widgets),
+	.dapm_routes = wm8727_dapm_routes,
+	.num_dapm_routes = ARRAY_SIZE(wm8727_dapm_routes),
+};
+
+static int wm8727_probe(struct platform_device *pdev)
+{
+	return snd_soc_register_codec(&pdev->dev,
+			&soc_codec_dev_wm8727, &wm8727_dai, 1);
+}
+
+static int wm8727_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_codec(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver wm8727_codec_driver = {
+	.driver = {
+			.name = "wm8727",
+	},
+
+	.probe = wm8727_probe,
+	.remove = wm8727_remove,
+};
+
+module_platform_driver(wm8727_codec_driver);
+
+MODULE_DESCRIPTION("ASoC wm8727 driver");
+MODULE_AUTHOR("Neil Jones");
+MODULE_LICENSE("GPL");