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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>
This commit is contained in:
Manuel Lauss 2011-07-25 13:44:46 +02:00 committed by Mark Brown
parent b3c70c9ea6
commit b2ce305dda
4 changed files with 134 additions and 0 deletions
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48
arch/mips/alchemy/devboards/db1x00/platform.c
View File

@ -19,8 +19,11 @@
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/au1000_dma.h>
#include <asm/mach-au1x00/au1xxx.h>
#include <asm/mach-db1x00/bcsr.h>
#include "../platform.h"
@ -85,6 +88,45 @@
#endif
#endif
static struct resource alchemy_ac97c_res[] = {
[0] = {
.start = AU1000_AC97_PHYS_ADDR,
.end = AU1000_AC97_PHYS_ADDR + 0xfff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMA_ID_AC97C_TX,
.end = DMA_ID_AC97C_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMA_ID_AC97C_RX,
.end = DMA_ID_AC97C_RX,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device alchemy_ac97c_dev = {
.name = "alchemy-ac97c",
.id = -1,
.resource = alchemy_ac97c_res,
.num_resources = ARRAY_SIZE(alchemy_ac97c_res),
};
static struct platform_device alchemy_ac97c_dma_dev = {
.name = "alchemy-pcm-dma",
.id = 0,
};
static struct platform_device db1x00_codec_dev = {
.name = "ac97-codec",
.id = -1,
};
static struct platform_device db1x00_audio_dev = {
.name = "db1000-audio",
};
static int __init db1xxx_dev_init(void)
{
#ifdef DB1XXX_HAS_PCMCIA
@ -113,6 +155,12 @@ static int __init db1xxx_dev_init(void)
1);
#endif
db1x_register_norflash(BOARD_FLASH_SIZE, BOARD_FLASH_WIDTH, F_SWAPPED);
platform_device_register(&db1x00_codec_dev);
platform_device_register(&alchemy_ac97c_dma_dev);
platform_device_register(&alchemy_ac97c_dev);
platform_device_register(&db1x00_audio_dev);
return 0;
}
device_initcall(db1xxx_dev_init);

9
sound/soc/au1x/Kconfig
View File

@ -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

2
sound/soc/au1x/Makefile
View File

@ -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

75
sound/soc/au1x/db1000.c Normal file
View File

@ -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");