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>

1 files changed, 54 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pc100/dev-audio.c b/arch/arm/mach-s5pc100/dev-audio.c
index 7f6d01e..564e195 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;
+}