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Commit b2ce305d authored by Manuel Lauss's avatar Manuel Lauss Committed by Mark Brown
Browse files

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: default avatarManuel Lauss <manuel.lauss@googlemail.com>
Acked-by: default avatarRalf Baechle <ralf@linux-mips.org>
Acked-by: default avatarLiam Girdwood <lrg@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent b3c70c9e

arch/mips/alchemy/devboards/db1x00/platform.c

+48 −0
Original line number Diff line number Diff line
@@ -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);

sound/soc/au1x/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -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

sound/soc/au1x/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -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

sound/soc/au1x/db1000.c

0 → 100644
+75 −0
Original line number Diff line number Diff line 
/*

 * 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");