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ARM: S5PC100: Add S/PDIF platform device 

This patch add S/PDIF platform device to support S/PDIF PCM audio
on S5PC100.

Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>
Acked-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
hifive-unleashed-5.1
Seungwhan Youn 2010-10-14 10:35:23 +09:00 committed by Kukjin Kim
parent 6b2cff9606
commit 068b432d74
5 changed files with 70 additions and 0 deletions
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54
arch/arm/mach-s5pc100/dev-audio.c
View File

@ -263,3 +263,57 @@ struct platform_device s5pc100_device_ac97 = {
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
/* S/PDIF Controller platform_device */
static int s5pc100_spdif_cfg_gpd(struct platform_device *pdev)
{
s3c_gpio_cfgpin_range(S5PC100_GPD(5), 2, S3C_GPIO_SFN(3));
return 0;
}
static int s5pc100_spdif_cfg_gpg3(struct platform_device *pdev)
{
s3c_gpio_cfgpin_range(S5PC100_GPG3(5), 2, S3C_GPIO_SFN(3));
return 0;
}
static struct resource s5pc100_spdif_resource[] = {
[0] = {
.start = S5PC100_PA_SPDIF,
.end = S5PC100_PA_SPDIF + 0x100 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMACH_SPDIF,
.end = DMACH_SPDIF,
.flags = IORESOURCE_DMA,
},
};
static struct s3c_audio_pdata s5p_spdif_pdata = {
.cfg_gpio = s5pc100_spdif_cfg_gpd,
};
static u64 s5pc100_spdif_dmamask = DMA_BIT_MASK(32);
struct platform_device s5pc100_device_spdif = {
.name = "samsung-spdif",
.id = -1,
.num_resources = ARRAY_SIZE(s5pc100_spdif_resource),
.resource = s5pc100_spdif_resource,
.dev = {
.platform_data = &s5p_spdif_pdata,
.dma_mask = &s5pc100_spdif_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
void __init s5pc100_spdif_setup_gpio(int gpio)
{
if (gpio == S5PC100_SPDIF_GPD)
s5p_spdif_pdata.cfg_gpio = s5pc100_spdif_cfg_gpd;
else
s5p_spdif_pdata.cfg_gpio = s5pc100_spdif_cfg_gpg3;
}

2
arch/arm/mach-s5pc100/include/mach/map.h
View File

@ -110,6 +110,8 @@
#define S5PC100_PA_PCM0 0xF2400000
#define S5PC100_PA_PCM1 0xF2500000
#define S5PC100_PA_SPDIF 0xF2600000
#define S5PC100_PA_TSADC (0xF3000000)
/* KEYPAD */

4
arch/arm/mach-s5pc100/mach-smdkc100.c
View File

@ -47,6 +47,7 @@
#include <plat/adc.h>
#include <plat/keypad.h>
#include <plat/ts.h>
#include <plat/audio.h>
/* Following are default values for UCON, ULCON and UFCON UART registers */
#define SMDKC100_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
@ -196,6 +197,7 @@ static struct platform_device *smdkc100_devices[] __initdata = {
&s5p_device_fimc0,
&s5p_device_fimc1,
&s5p_device_fimc2,
&s5pc100_device_spdif,
};
static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
@ -226,6 +228,8 @@ static void __init smdkc100_machine_init(void)
samsung_keypad_set_platdata(&smdkc100_keypad_data);
s5pc100_spdif_setup_gpio(S5PC100_SPDIF_GPD);
/* LCD init */
gpio_request(S5PC100_GPD(0), "GPD");
gpio_request(S5PC100_GPH0(6), "GPH0");

9
arch/arm/plat-samsung/include/plat/audio.h
View File

@ -16,6 +16,15 @@
#define S3C64XX_AC97_GPE 1
extern void s3c64xx_ac97_setup_gpio(int);
/*
* The machine init code calls s5p*_spdif_setup_gpio with
* one of these defines in order to select appropriate bank
* of GPIO for S/PDIF pins
*/
#define S5PC100_SPDIF_GPD 0
#define S5PC100_SPDIF_GPG3 1
extern void s5pc100_spdif_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

1
arch/arm/plat-samsung/include/plat/devs.h
View File

@ -111,6 +111,7 @@ extern struct platform_device s5pc100_device_pcm1;
extern struct platform_device s5pc100_device_iis0;
extern struct platform_device s5pc100_device_iis1;
extern struct platform_device s5pc100_device_iis2;
extern struct platform_device s5pc100_device_spdif;
extern struct platform_device samsung_device_keypad;