Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / pxa / em-x270.c

diff --git a/kernel/sound/soc/pxa/em-x270.c b/kernel/sound/soc/pxa/em-x270.c
new file mode 100644 (file)
index 0000000..64743a0
--- /dev/null
+++ b/kernel/sound/soc/pxa/em-x270.c
@@ -0,0 +1,96 @@
+/*
+ * SoC audio driver for EM-X270, eXeda and CM-X300
+ *
+ * Copyright 2007, 2009 CompuLab, Ltd.
+ *
+ * Author: Mike Rapoport <mike@compulab.co.il>
+ *
+ * Copied from tosa.c:
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
+ *          Richard Purdie <richard@openedhand.com>
+ *
+ *  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 <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/audio.h>
+
+#include "../codecs/wm9712.h"
+#include "pxa2xx-ac97.h"
+
+static struct snd_soc_dai_link em_x270_dai[] = {
+       {
+               .name = "AC97",
+               .stream_name = "AC97 HiFi",
+               .cpu_dai_name = "pxa2xx-ac97",
+               .codec_dai_name = "wm9712-hifi",
+               .platform_name = "pxa-pcm-audio",
+               .codec_name = "wm9712-codec",
+       },
+       {
+               .name = "AC97 Aux",
+               .stream_name = "AC97 Aux",
+               .cpu_dai_name = "pxa2xx-ac97-aux",
+               .codec_dai_name ="wm9712-aux",
+               .platform_name = "pxa-pcm-audio",
+               .codec_name = "wm9712-codec",
+       },
+};
+
+static struct snd_soc_card em_x270 = {
+       .name = "EM-X270",
+       .owner = THIS_MODULE,
+       .dai_link = em_x270_dai,
+       .num_links = ARRAY_SIZE(em_x270_dai),
+};
+
+static struct platform_device *em_x270_snd_device;
+
+static int __init em_x270_init(void)
+{
+       int ret;
+
+       if (!(machine_is_em_x270() || machine_is_exeda()
+             || machine_is_cm_x300()))
+               return -ENODEV;
+
+       em_x270_snd_device = platform_device_alloc("soc-audio", -1);
+       if (!em_x270_snd_device)
+               return -ENOMEM;
+
+       platform_set_drvdata(em_x270_snd_device, &em_x270);
+       ret = platform_device_add(em_x270_snd_device);
+
+       if (ret)
+               platform_device_put(em_x270_snd_device);
+
+       return ret;
+}
+
+static void __exit em_x270_exit(void)
+{
+       platform_device_unregister(em_x270_snd_device);
+}
+
+module_init(em_x270_init);
+module_exit(em_x270_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mike Rapoport");
+MODULE_DESCRIPTION("ALSA SoC EM-X270, eXeda and CM-X300");
+MODULE_LICENSE("GPL");