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authorLad, Prabhakar <prabhakar.csengg@gmail.com>2013-04-09 10:35:05 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-04-14 20:10:13 -0300
commit62a2d6cd56a4db3ab59322ad6c95f762a842d7ab (patch)
treea8b25614b774cc0442759fa5b751a6f7c4bf576c /arch
parent542b5bd226b0f5d5e9190cb96e6d96a912394795 (diff)
downloadlinux-linaro-stable-62a2d6cd56a4db3ab59322ad6c95f762a842d7ab.tar.gz
[media] ARM: davinci: dm355: add support for v4l2 video display
Create platform devices for various video modules like venc,osd, vpbe and v4l2 driver for dm355. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-davinci/board-dm355-evm.c4
-rw-r--r--arch/arm/mach-davinci/davinci.h3
-rw-r--r--arch/arm/mach-davinci/dm355.c167
3 files changed, 166 insertions, 8 deletions
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 147b8e1a4407..37d12cc202af 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -253,8 +253,6 @@ static struct davinci_uart_config uart_config __initdata = {
static void __init dm355_evm_map_io(void)
{
- /* setup input configuration for VPFE input devices */
- dm355_set_vpfe_config(&vpfe_cfg);
dm355_init();
}
@@ -344,6 +342,8 @@ static __init void dm355_evm_init(void)
davinci_setup_mmc(0, &dm355evm_mmc_config);
davinci_setup_mmc(1, &dm355evm_mmc_config);
+ dm355_init_video(&vpfe_cfg, NULL);
+
dm355_init_spi0(BIT(0), dm355_evm_spi_info,
ARRAY_SIZE(dm355_evm_spi_info));
diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index c8b1e0bebcfb..1ab3df423dac 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -44,6 +44,7 @@
#define SYSMOD_PUPDCTL1 0x7c
/* VPSS CLKCTL bit definitions */
+#define VPSS_MUXSEL_EXTCLK_ENABLE BIT(1)
#define VPSS_VENCCLKEN_ENABLE BIT(3)
#define VPSS_DACCLKEN_ENABLE BIT(4)
#define VPSS_PLLC2SYSCLK5_ENABLE BIT(5)
@@ -80,7 +81,7 @@ void __init dm355_init(void);
void dm355_init_spi0(unsigned chipselect_mask,
const struct spi_board_info *info, unsigned len);
void __init dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata);
-void dm355_set_vpfe_config(struct vpfe_config *cfg);
+int dm355_init_video(struct vpfe_config *, struct vpbe_config *);
/* DM365 function declarations */
void __init dm365_init(void);
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 8e98bb06b1c1..bf9a9d4ad9f5 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -35,6 +35,8 @@
#include "asp.h"
#define DM355_UART2_BASE (IO_PHYS + 0x206000)
+#define DM355_OSD_BASE (IO_PHYS + 0x70200)
+#define DM355_VENC_BASE (IO_PHYS + 0x70400)
/*
* Device specific clocks
@@ -744,11 +746,146 @@ static struct platform_device vpfe_capture_dev = {
},
};
-void dm355_set_vpfe_config(struct vpfe_config *cfg)
+static struct resource dm355_osd_resources[] = {
+ {
+ .start = DM355_OSD_BASE,
+ .end = DM355_OSD_BASE + 0x17f,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device dm355_osd_dev = {
+ .name = DM355_VPBE_OSD_SUBDEV_NAME,
+ .id = -1,
+ .num_resources = ARRAY_SIZE(dm355_osd_resources),
+ .resource = dm355_osd_resources,
+ .dev = {
+ .dma_mask = &vpfe_capture_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
+static struct resource dm355_venc_resources[] = {
+ {
+ .start = IRQ_VENCINT,
+ .end = IRQ_VENCINT,
+ .flags = IORESOURCE_IRQ,
+ },
+ /* venc registers io space */
+ {
+ .start = DM355_VENC_BASE,
+ .end = DM355_VENC_BASE + 0x17f,
+ .flags = IORESOURCE_MEM,
+ },
+ /* VDAC config register io space */
+ {
+ .start = DAVINCI_SYSTEM_MODULE_BASE + SYSMOD_VDAC_CONFIG,
+ .end = DAVINCI_SYSTEM_MODULE_BASE + SYSMOD_VDAC_CONFIG + 3,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource dm355_v4l2_disp_resources[] = {
+ {
+ .start = IRQ_VENCINT,
+ .end = IRQ_VENCINT,
+ .flags = IORESOURCE_IRQ,
+ },
+ /* venc registers io space */
+ {
+ .start = DM355_VENC_BASE,
+ .end = DM355_VENC_BASE + 0x17f,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static int dm355_vpbe_setup_pinmux(enum v4l2_mbus_pixelcode if_type,
+ int field)
+{
+ switch (if_type) {
+ case V4L2_MBUS_FMT_SGRBG8_1X8:
+ davinci_cfg_reg(DM355_VOUT_FIELD_G70);
+ break;
+ case V4L2_MBUS_FMT_YUYV10_1X20:
+ if (field)
+ davinci_cfg_reg(DM355_VOUT_FIELD);
+ else
+ davinci_cfg_reg(DM355_VOUT_FIELD_G70);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ davinci_cfg_reg(DM355_VOUT_COUTL_EN);
+ davinci_cfg_reg(DM355_VOUT_COUTH_EN);
+
+ return 0;
+}
+
+static int dm355_venc_setup_clock(enum vpbe_enc_timings_type type,
+ unsigned int pclock)
{
- vpfe_capture_dev.dev.platform_data = cfg;
+ void __iomem *vpss_clk_ctrl_reg;
+
+ vpss_clk_ctrl_reg = DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL);
+
+ switch (type) {
+ case VPBE_ENC_STD:
+ writel(VPSS_DACCLKEN_ENABLE | VPSS_VENCCLKEN_ENABLE,
+ vpss_clk_ctrl_reg);
+ break;
+ case VPBE_ENC_DV_TIMINGS:
+ if (pclock > 27000000)
+ /*
+ * For HD, use external clock source since we cannot
+ * support HD mode with internal clocks.
+ */
+ writel(VPSS_MUXSEL_EXTCLK_ENABLE, vpss_clk_ctrl_reg);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
}
+static struct platform_device dm355_vpbe_display = {
+ .name = "vpbe-v4l2",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(dm355_v4l2_disp_resources),
+ .resource = dm355_v4l2_disp_resources,
+ .dev = {
+ .dma_mask = &vpfe_capture_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
+struct venc_platform_data dm355_venc_pdata = {
+ .setup_pinmux = dm355_vpbe_setup_pinmux,
+ .setup_clock = dm355_venc_setup_clock,
+};
+
+static struct platform_device dm355_venc_dev = {
+ .name = DM355_VPBE_VENC_SUBDEV_NAME,
+ .id = -1,
+ .num_resources = ARRAY_SIZE(dm355_venc_resources),
+ .resource = dm355_venc_resources,
+ .dev = {
+ .dma_mask = &vpfe_capture_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = (void *)&dm355_venc_pdata,
+ },
+};
+
+static struct platform_device dm355_vpbe_dev = {
+ .name = "vpbe_controller",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpfe_capture_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
/*----------------------------------------------------------------------*/
static struct map_desc dm355_io_desc[] = {
@@ -868,6 +1005,29 @@ void __init dm355_init(void)
davinci_map_sysmod();
}
+int __init dm355_init_video(struct vpfe_config *vpfe_cfg,
+ struct vpbe_config *vpbe_cfg)
+{
+ if (vpfe_cfg || vpbe_cfg)
+ platform_device_register(&dm355_vpss_device);
+
+ if (vpfe_cfg) {
+ vpfe_capture_dev.dev.platform_data = vpfe_cfg;
+ platform_device_register(&dm355_ccdc_dev);
+ platform_device_register(&vpfe_capture_dev);
+ }
+
+ if (vpbe_cfg) {
+ dm355_vpbe_dev.dev.platform_data = vpbe_cfg;
+ platform_device_register(&dm355_osd_dev);
+ platform_device_register(&dm355_venc_dev);
+ platform_device_register(&dm355_vpbe_dev);
+ platform_device_register(&dm355_vpbe_display);
+ }
+
+ return 0;
+}
+
static int __init dm355_init_devices(void)
{
if (!cpu_is_davinci_dm355())
@@ -875,9 +1035,6 @@ static int __init dm355_init_devices(void)
davinci_cfg_reg(DM355_INT_EDMA_CC);
platform_device_register(&dm355_edma_device);
- platform_device_register(&dm355_vpss_device);
- platform_device_register(&dm355_ccdc_dev);
- platform_device_register(&vpfe_capture_dev);
return 0;
}