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[media] ARM: davinci: dm365: add support for v4l2 video display 

Create platform devices for various video modules like venc,osd,
vpbe and v4l2 driver for dm365.

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>
This commit is contained in:
Lad, Prabhakar 2013-03-19 07:34:36 -03:00 committed by Mauro Carvalho Chehab
parent 54d5e4beb8
commit 120c66046c
3 changed files with 179 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/mach-davinci/board-dm365-evm.c
View File

@ -564,8 +564,6 @@ static struct davinci_uart_config uart_config __initdata = {
static void __init dm365_evm_map_io(void)
{
/* setup input configuration for VPFE input devices */
dm365_set_vpfe_config(&vpfe_cfg);
dm365_init();
}
@ -597,6 +595,8 @@ static __init void dm365_evm_init(void)
davinci_setup_mmc(0, &dm365evm_mmc_config);
dm365_init_video(&vpfe_cfg, NULL);
/* maybe setup mmc1/etc ... _after_ mmc0 */
evm_init_cpld();

8
arch/arm/mach-davinci/davinci.h
View File

@ -36,12 +36,18 @@
#include <media/davinci/vpbe_osd.h>
#define DAVINCI_SYSTEM_MODULE_BASE 0x01c40000
#define SYSMOD_VDAC_CONFIG 0x2c
#define SYSMOD_VIDCLKCTL 0x38
#define SYSMOD_VPSS_CLKCTL 0x44
#define SYSMOD_VDD3P3VPWDN 0x48
#define SYSMOD_VSCLKDIS 0x6c
#define SYSMOD_PUPDCTL1 0x7c
/* VPSS CLKCTL bit definitions */
#define VPSS_VENCCLKEN_ENABLE BIT(3)
#define VPSS_DACCLKEN_ENABLE BIT(4)
#define VPSS_PLLC2SYSCLK5_ENABLE BIT(5)
extern void __iomem *davinci_sysmod_base;
#define DAVINCI_SYSMOD_VIRT(x) (davinci_sysmod_base + (x))
void davinci_map_sysmod(void);
@ -84,7 +90,7 @@ void __init dm365_init_ks(struct davinci_ks_platform_data *pdata);
void __init dm365_init_rtc(void);
void dm365_init_spi0(unsigned chipselect_mask,
const struct spi_board_info *info, unsigned len);
void dm365_set_vpfe_config(struct vpfe_config *cfg);
int dm365_init_video(struct vpfe_config *, struct vpbe_config *);
/* DM644x function declarations */
void __init dm644x_init(void);

184
arch/arm/mach-davinci/dm365.c
View File

@ -39,16 +39,13 @@
#include "asp.h"
#define DM365_REF_FREQ 24000000 /* 24 MHz on the DM365 EVM */
/* Base of key scan register bank */
#define DM365_KEYSCAN_BASE 0x01c69400
#define DM365_RTC_BASE 0x01c69000
#define DM365_KEYSCAN_BASE 0x01c69400
#define DM365_OSD_BASE 0x01c71c00
#define DM365_VENC_BASE 0x01c71e00
#define DAVINCI_DM365_VC_BASE 0x01d0c000
#define DAVINCI_DMA_VC_TX 2
#define DAVINCI_DMA_VC_RX 3
#define DM365_EMAC_BASE 0x01d07000
#define DM365_EMAC_MDIO_BASE (DM365_EMAC_BASE + 0x4000)
#define DM365_EMAC_CNTRL_OFFSET 0x0000
@ -1233,6 +1230,173 @@ static struct platform_device dm365_isif_dev = {
},
};
static struct resource dm365_osd_resources[] = {
{
.start = DM365_OSD_BASE,
.end = DM365_OSD_BASE + 0xff,
.flags = IORESOURCE_MEM,
},
};
static u64 dm365_video_dma_mask = DMA_BIT_MASK(32);
static struct platform_device dm365_osd_dev = {
.name = DM365_VPBE_OSD_SUBDEV_NAME,
.id = -1,
.num_resources = ARRAY_SIZE(dm365_osd_resources),
.resource = dm365_osd_resources,
.dev = {
.dma_mask = &dm365_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
static struct resource dm365_venc_resources[] = {
{
.start = IRQ_VENCINT,
.end = IRQ_VENCINT,
.flags = IORESOURCE_IRQ,
},
/* venc registers io space */
{
.start = DM365_VENC_BASE,
.end = DM365_VENC_BASE + 0x177,
.flags = IORESOURCE_MEM,
},
/* vdaccfg registers 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 dm365_v4l2_disp_resources[] = {
{
.start = IRQ_VENCINT,
.end = IRQ_VENCINT,
.flags = IORESOURCE_IRQ,
},
/* venc registers io space */
{
.start = DM365_VENC_BASE,
.end = DM365_VENC_BASE + 0x177,
.flags = IORESOURCE_MEM,
},
};
static int dm365_vpbe_setup_pinmux(enum v4l2_mbus_pixelcode if_type,
int field)
{
switch (if_type) {
case V4L2_MBUS_FMT_SGRBG8_1X8:
davinci_cfg_reg(DM365_VOUT_FIELD_G81);
davinci_cfg_reg(DM365_VOUT_COUTL_EN);
davinci_cfg_reg(DM365_VOUT_COUTH_EN);
break;
case V4L2_MBUS_FMT_YUYV10_1X20:
if (field)
davinci_cfg_reg(DM365_VOUT_FIELD);
else
davinci_cfg_reg(DM365_VOUT_FIELD_G81);
davinci_cfg_reg(DM365_VOUT_COUTL_EN);
davinci_cfg_reg(DM365_VOUT_COUTH_EN);
break;
default:
return -EINVAL;
}
return 0;
}
static int dm365_venc_setup_clock(enum vpbe_enc_timings_type type,
unsigned int pclock)
{
void __iomem *vpss_clkctl_reg;
u32 val;
vpss_clkctl_reg = DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL);
switch (type) {
case VPBE_ENC_STD:
val = VPSS_VENCCLKEN_ENABLE | VPSS_DACCLKEN_ENABLE;
break;
case VPBE_ENC_DV_TIMINGS:
if (pclock <= 27000000) {
val = VPSS_VENCCLKEN_ENABLE | VPSS_DACCLKEN_ENABLE;
} else {
/* set sysclk4 to output 74.25 MHz from pll1 */
val = VPSS_PLLC2SYSCLK5_ENABLE | VPSS_DACCLKEN_ENABLE |
VPSS_VENCCLKEN_ENABLE;
}
break;
default:
return -EINVAL;
}
writel(val, vpss_clkctl_reg);
return 0;
}
static struct platform_device dm365_vpbe_display = {
.name = "vpbe-v4l2",
.id = -1,
.num_resources = ARRAY_SIZE(dm365_v4l2_disp_resources),
.resource = dm365_v4l2_disp_resources,
.dev = {
.dma_mask = &dm365_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
struct venc_platform_data dm365_venc_pdata = {
.setup_pinmux = dm365_vpbe_setup_pinmux,
.setup_clock = dm365_venc_setup_clock,
};
static struct platform_device dm365_venc_dev = {
.name = DM365_VPBE_VENC_SUBDEV_NAME,
.id = -1,
.num_resources = ARRAY_SIZE(dm365_venc_resources),
.resource = dm365_venc_resources,
.dev = {
.dma_mask = &dm365_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = (void *)&dm365_venc_pdata,
},
};
static struct platform_device dm365_vpbe_dev = {
.name = "vpbe_controller",
.id = -1,
.dev = {
.dma_mask = &dm365_video_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
int __init dm365_init_video(struct vpfe_config *vpfe_cfg,
struct vpbe_config *vpbe_cfg)
{
if (vpfe_cfg || vpbe_cfg)
platform_device_register(&dm365_vpss_device);
if (vpfe_cfg) {
vpfe_capture_dev.dev.platform_data = vpfe_cfg;
platform_device_register(&dm365_isif_dev);
platform_device_register(&vpfe_capture_dev);
}
if (vpbe_cfg) {
dm365_vpbe_dev.dev.platform_data = vpbe_cfg;
platform_device_register(&dm365_osd_dev);
platform_device_register(&dm365_venc_dev);
platform_device_register(&dm365_vpbe_dev);
platform_device_register(&dm365_vpbe_display);
}
return 0;
}
static int __init dm365_init_devices(void)
{
if (!cpu_is_davinci_dm365())
@ -1246,14 +1410,6 @@ static int __init dm365_init_devices(void)
clk_add_alias(NULL, dev_name(&dm365_mdio_device.dev),
NULL, &dm365_emac_device.dev);
platform_device_register(&dm365_vpss_device);
platform_device_register(&dm365_isif_dev);
platform_device_register(&vpfe_capture_dev);
return 0;
}
postcore_initcall(dm365_init_devices);
void dm365_set_vpfe_config(struct vpfe_config *cfg)
{
vpfe_capture_dev.dev.platform_data = cfg;
}