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authorSeungwhan Youn <sw.youn@samsung.com>2010-10-14 03:35:23 +0200
committerKukjin Kim <kgene.kim@samsung.com>2010-10-25 09:05:11 +0200
commit068b432d74e4d3d17ee0c292337e7194bba655c0 (patch)
treeaaef0cb22ad8bac7147cec123b4eb2b5d12c38e4 /arch/arm
parentARM: S3C64XX: Ensure s3c64xx_ide_setup_gpio() is prototyped (diff)
downloadlinux-068b432d74e4d3d17ee0c292337e7194bba655c0.tar.xz
linux-068b432d74e4d3d17ee0c292337e7194bba655c0.zip
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-s5pc100/dev-audio.c54
-rw-r--r--arch/arm/mach-s5pc100/include/mach/map.h2
-rw-r--r--arch/arm/mach-s5pc100/mach-smdkc100.c4
-rw-r--r--arch/arm/plat-samsung/include/plat/audio.h9
-rw-r--r--arch/arm/plat-samsung/include/plat/devs.h1
5 files changed, 70 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/dev-audio.c b/arch/arm/mach-s5pc100/dev-audio.c
index 7f6d01e74b8e..564e195ec493 100644
--- a/arch/arm/mach-s5pc100/dev-audio.c
+++ b/arch/arm/mach-s5pc100/dev-audio.c
@@ -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;
+}
diff --git a/arch/arm/mach-s5pc100/include/mach/map.h b/arch/arm/mach-s5pc100/include/mach/map.h
index 8751ef4a6804..32e9cab5c864 100644
--- a/arch/arm/mach-s5pc100/include/mach/map.h
+++ b/arch/arm/mach-s5pc100/include/mach/map.h
@@ -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 */
diff --git a/arch/arm/mach-s5pc100/mach-smdkc100.c b/arch/arm/mach-s5pc100/mach-smdkc100.c
index 020c3f98f81f..994a1e152732 100644
--- a/arch/arm/mach-s5pc100/mach-smdkc100.c
+++ b/arch/arm/mach-s5pc100/mach-smdkc100.c
@@ -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");
diff --git a/arch/arm/plat-samsung/include/plat/audio.h b/arch/arm/plat-samsung/include/plat/audio.h
index e32f9edfd4b7..7712ff6336f4 100644
--- a/arch/arm/plat-samsung/include/plat/audio.h
+++ b/arch/arm/plat-samsung/include/plat/audio.h
@@ -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
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 71bcc0fc47c6..547110da1109 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -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;