Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit de6985be authored by Jassi Brar's avatar Jassi Brar Committed by Ben Dooks
Browse files

ARM: S3C64XX: Add AC97 platform resources 



This patch defines the platform device and the resources: IRQ, DMA and MEM,
needed by the AC97 controller driver.

Signed-off-by: default avatarJassi Brar <jassi.brar@samsung.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 1f100868

arch/arm/mach-s3c64xx/dev-audio.c

+78 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
#include <linux/kernel.h>

#include <linux/string.h>

#include <linux/platform_device.h>

#include <linux/dma-mapping.h>



#include <mach/irqs.h>

#include <mach/map.h>
@@ -255,3 +256,80 @@ struct platform_device s3c64xx_device_pcm1 = { 
	},

};

EXPORT_SYMBOL(s3c64xx_device_pcm1);



/* AC97 Controller platform devices */



static int s3c64xx_ac97_cfg_gpd(struct platform_device *pdev)

{

	s3c_gpio_cfgpin(S3C64XX_GPD(0), S3C64XX_GPD0_AC97_BITCLK);

	s3c_gpio_cfgpin(S3C64XX_GPD(1), S3C64XX_GPD1_AC97_nRESET);

	s3c_gpio_cfgpin(S3C64XX_GPD(2), S3C64XX_GPD2_AC97_SYNC);

	s3c_gpio_cfgpin(S3C64XX_GPD(3), S3C64XX_GPD3_AC97_SDI);

	s3c_gpio_cfgpin(S3C64XX_GPD(4), S3C64XX_GPD4_AC97_SDO);



	return 0;

}



static int s3c64xx_ac97_cfg_gpe(struct platform_device *pdev)

{

	s3c_gpio_cfgpin(S3C64XX_GPE(0), S3C64XX_GPE0_AC97_BITCLK);

	s3c_gpio_cfgpin(S3C64XX_GPE(1), S3C64XX_GPE1_AC97_nRESET);

	s3c_gpio_cfgpin(S3C64XX_GPE(2), S3C64XX_GPE2_AC97_SYNC);

	s3c_gpio_cfgpin(S3C64XX_GPE(3), S3C64XX_GPE3_AC97_SDI);

	s3c_gpio_cfgpin(S3C64XX_GPE(4), S3C64XX_GPE4_AC97_SDO);



	return 0;

}



static struct resource s3c64xx_ac97_resource[] = {

	[0] = {

		.start = S3C64XX_PA_AC97,

		.end   = S3C64XX_PA_AC97 + 0x100 - 1,

		.flags = IORESOURCE_MEM,

	},

	[1] = {

		.start = DMACH_AC97_PCMOUT,

		.end   = DMACH_AC97_PCMOUT,

		.flags = IORESOURCE_DMA,

	},

	[2] = {

		.start = DMACH_AC97_PCMIN,

		.end   = DMACH_AC97_PCMIN,

		.flags = IORESOURCE_DMA,

	},

	[3] = {

		.start = DMACH_AC97_MICIN,

		.end   = DMACH_AC97_MICIN,

		.flags = IORESOURCE_DMA,

	},

	[4] = {

		.start = IRQ_AC97,

		.end   = IRQ_AC97,

		.flags = IORESOURCE_IRQ,

	},

};



static struct s3c_audio_pdata s3c_ac97_pdata;



static u64 s3c64xx_ac97_dmamask = DMA_BIT_MASK(32);



struct platform_device s3c64xx_device_ac97 = {

	.name		  = "s3c-ac97",

	.id		  = -1,

	.num_resources	  = ARRAY_SIZE(s3c64xx_ac97_resource),

	.resource	  = s3c64xx_ac97_resource,

	.dev = {

		.platform_data = &s3c_ac97_pdata,

		.dma_mask = &s3c64xx_ac97_dmamask,

		.coherent_dma_mask = DMA_BIT_MASK(32),

	},

};

EXPORT_SYMBOL(s3c64xx_device_ac97);



void __init s3c64xx_ac97_setup_gpio(int num)

{

	if (num == S3C64XX_AC97_GPD)

		s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpd;

	else

		s3c_ac97_pdata.cfg_gpio = s3c64xx_ac97_cfg_gpe;

}

arch/arm/plat-samsung/include/plat/audio.h

+8 −0
Original line number Diff line number Diff line
@@ -8,6 +8,14 @@ 
 * published by the Free Software Foundation.

 */



/* The machine init code calls s3c*_ac97_setup_gpio with

 * one of these defines in order to select appropriate bank

 * of GPIO for AC97 pins

 */

#define S3C64XX_AC97_GPD  0

#define S3C64XX_AC97_GPE  1

extern void s3c64xx_ac97_setup_gpio(int);



/**

 * struct s3c_audio_pdata - common platform data for audio device drivers

 * @cfg_gpio: Callback function to setup mux'ed pins in I2S/PCM/AC97 mode

arch/arm/plat-samsung/include/plat/devs.h

+3 −0
Original line number Diff line number Diff line
@@ -35,7 +35,10 @@ extern struct platform_device s3c64xx_device_spi1; 
extern struct platform_device s3c64xx_device_pcm0;

extern struct platform_device s3c64xx_device_pcm1;



extern struct platform_device s3c64xx_device_ac97;



extern struct platform_device s3c_device_ts;



extern struct platform_device s3c_device_fb;

extern struct platform_device s3c_device_ohci;

extern struct platform_device s3c_device_lcd;