ASoC: Add a DB1x00 AC97 machine driver

Add a machine driver suitable for the AC97 part on the DB1000/DB1500/DB1100
boards.

Run-tested on DB1500.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 86 insertions, 0 deletions

diff --git a/sound/soc/au1x/Kconfig b/sound/soc/au1x/Kconfig
index 0460b42..6d59254 100644
--- a/sound/soc/au1x/Kconfig
+++ b/sound/soc/au1x/Kconfig
@@ -41,6 +41,15 @@ config SND_SOC_AU1XI2SC
 ##
 ## Boards
 ##
+config SND_SOC_DB1000
+	tristate "DB1000 Audio support"
+	depends on SND_SOC_AU1XAUDIO
+	select SND_SOC_AU1XAC97C
+	select SND_SOC_AC97_CODEC
+	help
+	  Select this option to enable AC97 audio on the early DB1x00 series
+	  of boards (DB1000/DB1500/DB1100).
+
 config SND_SOC_DB1200
 	tristate "DB1200 AC97+I2S audio support"
 	depends on SND_SOC_AU1XPSC
diff --git a/sound/soc/au1x/Makefile b/sound/soc/au1x/Makefile
index ff5531e..9207105 100644
--- a/sound/soc/au1x/Makefile
+++ b/sound/soc/au1x/Makefile
@@ -16,6 +16,8 @@ obj-$(CONFIG_SND_SOC_AU1XAC97C) += snd-soc-au1x-ac97c.o
 obj-$(CONFIG_SND_SOC_AU1XI2SC) += snd-soc-au1x-i2sc.o
 
 # Boards
+snd-soc-db1000-objs := db1000.o
 snd-soc-db1200-objs := db1200.o
 
+obj-$(CONFIG_SND_SOC_DB1000) += snd-soc-db1000.o
 obj-$(CONFIG_SND_SOC_DB1200) += snd-soc-db1200.o
diff --git a/sound/soc/au1x/db1000.c b/sound/soc/au1x/db1000.c
new file mode 100644
index 0000000..127477a
--- /dev/null
+++ b/sound/soc/au1x/db1000.c
@@ -0,0 +1,75 @@
+/*
+ * DB1000/DB1500/DB1100 ASoC audio fabric support code.
+ *
+ * (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+#include "psc.h"
+
+static struct snd_soc_dai_link db1000_ac97_dai = {
+	.name		= "AC97",
+	.stream_name	= "AC97 HiFi",
+	.codec_dai_name	= "ac97-hifi",
+	.cpu_dai_name	= "alchemy-ac97c",
+	.platform_name	= "alchemy-pcm-dma.0",
+	.codec_name	= "ac97-codec",
+};
+
+static struct snd_soc_card db1000_ac97 = {
+	.name		= "DB1000_AC97",
+	.dai_link	= &db1000_ac97_dai,
+	.num_links	= 1,
+};
+
+static int __devinit db1000_audio_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &db1000_ac97;
+	card->dev = &pdev->dev;
+	return snd_soc_register_card(card);
+}
+
+static int __devexit db1000_audio_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	snd_soc_unregister_card(card);
+	return 0;
+}
+
+static struct platform_driver db1000_audio_driver = {
+	.driver	= {
+		.name	= "db1000-audio",
+		.owner	= THIS_MODULE,
+		.pm	= &snd_soc_pm_ops,
+	},
+	.probe		= db1000_audio_probe,
+	.remove		= __devexit_p(db1000_audio_remove),
+};
+
+static int __init db1000_audio_load(void)
+{
+	return platform_driver_register(&db1000_audio_driver);
+}
+
+static void __exit db1000_audio_unload(void)
+{
+	platform_driver_unregister(&db1000_audio_driver);
+}
+
+module_init(db1000_audio_load);
+module_exit(db1000_audio_unload);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DB1000/DB1500/DB1100 ASoC audio");
+MODULE_AUTHOR("Manuel Lauss");