Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / sh / sh7760-ac97.c

diff --git a/kernel/sound/soc/sh/sh7760-ac97.c b/kernel/sound/soc/sh/sh7760-ac97.c
new file mode 100644 (file)
index 0000000..4a3568a
--- /dev/null
+++ b/kernel/sound/soc/sh/sh7760-ac97.c
@@ -0,0 +1,73 @@
+/*
+ * Generic AC97 sound support for SH7760
+ *
+ * (c) 2007 Manuel Lauss
+ *
+ * Licensed under the GPLv2.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/io.h>
+
+#define IPSEL 0xFE400034
+
+static struct snd_soc_dai_link sh7760_ac97_dai = {
+       .name = "AC97",
+       .stream_name = "AC97 HiFi",
+       .cpu_dai_name = "hac-dai.0",    /* HAC0 */
+       .codec_dai_name = "ac97-hifi",
+       .platform_name = "sh7760-pcm-audio",
+       .codec_name = "ac97-codec",
+       .ops = NULL,
+};
+
+static struct snd_soc_card sh7760_ac97_soc_machine  = {
+       .name = "SH7760 AC97",
+       .owner = THIS_MODULE,
+       .dai_link = &sh7760_ac97_dai,
+       .num_links = 1,
+};
+
+static struct platform_device *sh7760_ac97_snd_device;
+
+static int __init sh7760_ac97_init(void)
+{
+       int ret;
+       unsigned short ipsel;
+
+       /* enable both AC97 controllers in pinmux reg */
+       ipsel = __raw_readw(IPSEL);
+       __raw_writew(ipsel | (3 << 10), IPSEL);
+
+       ret = -ENOMEM;
+       sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1);
+       if (!sh7760_ac97_snd_device)
+               goto out;
+
+       platform_set_drvdata(sh7760_ac97_snd_device,
+                            &sh7760_ac97_soc_machine);
+       ret = platform_device_add(sh7760_ac97_snd_device);
+
+       if (ret)
+               platform_device_put(sh7760_ac97_snd_device);
+
+out:
+       return ret;
+}
+
+static void __exit sh7760_ac97_exit(void)
+{
+       platform_device_unregister(sh7760_ac97_snd_device);
+}
+
+module_init(sh7760_ac97_init);
+module_exit(sh7760_ac97_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine");
+MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");