[PATCH v18 12/13] davinci: dm644x: add support for v4l2 video display
Manjunath Hadli
manjunath.hadli at ti.com
Sat Apr 2 05:44:10 EDT 2011
Create platform devices for various video modules like venc,osd,
vpbe and v4l2 driver for dm644x. Change the dm644x_init_video to
make room for display config, and register the vpfe or vpbe devices
based on the config pointer validity to make sure boards without vpfe
or vpbe can be built with minimal changes.
Signed-off-by: Manjunath Hadli <manjunath.hadli at ti.com>
Acked-by: Sekhar Nori <nsekhar at ti.com>
---
arch/arm/mach-davinci/board-dm644x-evm.c | 2 +-
arch/arm/mach-davinci/dm644x.c | 163 ++++++++++++++++++++++++---
arch/arm/mach-davinci/include/mach/dm644x.h | 6 +-
3 files changed, 153 insertions(+), 18 deletions(-)
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index d1542b1..afa88ac 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -699,7 +699,7 @@ static __init void davinci_evm_init(void)
evm_init_i2c();
davinci_setup_mmc(0, &dm6446evm_mmc_config);
- dm644x_init_video(&dm644xevm_capture_cfg);
+ dm644x_init_video(&dm644xevm_capture_cfg, NULL);
davinci_serial_init(&uart_config);
dm644x_init_asp(&dm644x_evm_snd_data);
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 36d4d72..91e979d 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -619,7 +619,7 @@ static struct resource dm644x_vpfe_resources[] = {
},
};
-static u64 vpfe_capture_dma_mask = DMA_BIT_MASK(32);
+static u64 dm644x_video_dma_mask = DMA_BIT_MASK(32);
static struct resource dm644x_ccdc_resource[] = {
/* CCDC Base address */
{
@@ -635,7 +635,7 @@ static struct platform_device dm644x_ccdc_dev = {
.num_resources = ARRAY_SIZE(dm644x_ccdc_resource),
.resource = dm644x_ccdc_resource,
.dev = {
- .dma_mask = &vpfe_capture_dma_mask,
+ .dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
@@ -646,7 +646,127 @@ static struct platform_device dm644x_vpfe_dev = {
.num_resources = ARRAY_SIZE(dm644x_vpfe_resources),
.resource = dm644x_vpfe_resources,
.dev = {
- .dma_mask = &vpfe_capture_dma_mask,
+ .dma_mask = &dm644x_video_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
+#define DM644X_OSD_REG_BASE 0x01C72600
+
+static struct resource dm644x_osd_resources[] = {
+ {
+ .start = DM644X_OSD_REG_BASE,
+ .end = DM644X_OSD_REG_BASE + 0x1ff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct osd_platform_data dm644x_osd_data = {
+ .vpbe_type = VPBE_VERSION_1,
+};
+
+static struct platform_device dm644x_osd_dev = {
+ .name = VPBE_OSD_SUBDEV_NAME,
+ .id = -1,
+ .num_resources = ARRAY_SIZE(dm644x_osd_resources),
+ .resource = dm644x_osd_resources,
+ .dev = {
+ .dma_mask = &dm644x_video_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &dm644x_osd_data,
+ },
+};
+
+#define DM644X_VENC_REG_BASE 0x01C72400
+
+static struct resource dm644x_venc_resources[] = {
+ {
+ .start = DM644X_VENC_REG_BASE,
+ .end = DM644X_VENC_REG_BASE + 0x17f,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static int dm644x_venc_setup_clock(enum vpbe_enc_timings_type type,
+ unsigned int mode)
+{
+ int ret = 0;
+ void __iomem *vpss_clkctl_reg;
+
+ vpss_clkctl_reg = DAVINCI_SYSMODULE_VIRT(0x44);
+
+ switch (type) {
+ case VPBE_ENC_STD:
+ writel(0x18, vpss_clkctl_reg);
+ break;
+ case VPBE_ENC_DV_PRESET:
+ switch ((unsigned int)mode) {
+ case V4L2_DV_480P59_94:
+ case V4L2_DV_576P50:
+ writel(0x19, vpss_clkctl_reg);
+ break;
+ case V4L2_DV_720P60:
+ case V4L2_DV_1080I60:
+ case V4L2_DV_1080P30:
+ /*
+ * For HD, use external clock source since
+ * HD requires higher clock rate
+ */
+ writel(0xa, vpss_clkctl_reg);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static struct resource dm644x_v4l2_disp_resources[] = {
+ {
+ .start = IRQ_VENCINT,
+ .end = IRQ_VENCINT,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device dm644x_vpbe_display = {
+ .name = "vpbe-v4l2",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(dm644x_v4l2_disp_resources),
+ .resource = dm644x_v4l2_disp_resources,
+ .dev = {
+ .dma_mask = &dm644x_video_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
+static struct venc_platform_data dm644x_venc_pdata = {
+ .venc_type = VPBE_VERSION_1,
+ .setup_clock = dm644x_venc_setup_clock,
+};
+
+static struct platform_device dm644x_venc_dev = {
+ .name = VPBE_VENC_SUBDEV_NAME,
+ .id = -1,
+ .num_resources = ARRAY_SIZE(dm644x_venc_resources),
+ .resource = dm644x_venc_resources,
+ .dev = {
+ .dma_mask = &dm644x_video_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &dm644x_venc_pdata,
+ },
+};
+
+static struct platform_device dm644x_vpbe_dev = {
+ .name = "vpbe_controller",
+ .id = -1,
+ .dev = {
+ .dma_mask = &dm644x_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
@@ -779,20 +899,31 @@ void __init dm644x_init(void)
davinci_map_sysmod();
}
-static struct platform_device *dm644x_video_devices[] __initdata = {
- &dm644x_vpss_device,
- &dm644x_ccdc_dev,
- &dm644x_vpfe_dev,
-};
-
-int __init dm644x_init_video(struct vpfe_config *vpfe_cfg)
+int __init dm644x_init_video(struct vpfe_config *vpfe_cfg,
+ struct vpbe_config *vpbe_cfg)
{
- dm644x_vpfe_dev.dev.platform_data = vpfe_cfg;
- /* Add ccdc clock aliases */
- clk_add_alias("master", dm644x_ccdc_dev.name, "vpss_master", NULL);
- clk_add_alias("slave", dm644x_ccdc_dev.name, "vpss_slave", NULL);
- platform_add_devices(dm644x_video_devices,
- ARRAY_SIZE(dm644x_video_devices));
+ if (vpfe_cfg || vpbe_cfg)
+ platform_device_register(&dm644x_vpss_device);
+
+ if (vpfe_cfg) {
+ dm644x_vpfe_dev.dev.platform_data = vpfe_cfg;
+ platform_device_register(&dm644x_ccdc_dev);
+ platform_device_register(&dm644x_vpfe_dev);
+ /* Add ccdc clock aliases */
+ clk_add_alias("master", dm644x_ccdc_dev.name,
+ "vpss_master", NULL);
+ clk_add_alias("slave", dm644x_ccdc_dev.name,
+ "vpss_slave", NULL);
+ }
+
+ if (vpbe_cfg) {
+ dm644x_vpbe_dev.dev.platform_data = vpbe_cfg;
+ platform_device_register(&dm644x_osd_dev);
+ platform_device_register(&dm644x_venc_dev);
+ platform_device_register(&dm644x_vpbe_dev);
+ platform_device_register(&dm644x_vpbe_display);
+ }
+
return 0;
}
diff --git a/arch/arm/mach-davinci/include/mach/dm644x.h b/arch/arm/mach-davinci/include/mach/dm644x.h
index 29a9e24..a405702 100644
--- a/arch/arm/mach-davinci/include/mach/dm644x.h
+++ b/arch/arm/mach-davinci/include/mach/dm644x.h
@@ -26,6 +26,10 @@
#include <mach/hardware.h>
#include <mach/asp.h>
#include <media/davinci/vpfe_capture.h>
+#include <media/davinci/vpbe_types.h>
+#include <media/davinci/vpbe.h>
+#include <media/davinci/vpss.h>
+#include <media/davinci/vpbe_osd.h>
#define DM644X_EMAC_BASE (0x01C80000)
#define DM644X_EMAC_MDIO_BASE (DM644X_EMAC_BASE + 0x4000)
@@ -42,6 +46,6 @@
void __init dm644x_init(void);
void __init dm644x_init_asp(struct snd_platform_data *pdata);
-int __init dm644x_init_video(struct vpfe_config *);
+int __init dm644x_init_video(struct vpfe_config *, struct vpbe_config *);
#endif /* __ASM_ARCH_DM644X_H */
--
1.6.2.4
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