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video: exynos_dp: Add function to parse DP DT node

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Add function to parse the required platform data fron DP DT node
and fill the edp_info structure.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Ajay Kumar 2013-02-21 23:53:06 +00:00 committed by Minkyu Kang
parent 1e4706a715
commit 9947d13e51
2 changed files with 82 additions and 0 deletions
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65
drivers/video/exynos_dp.c
View File

@ -27,9 +27,13 @@
#include <asm/arch/cpu.h>
#include <asm/arch/dp_info.h>
#include <asm/arch/dp.h>
#include <fdtdec.h>
#include <libfdt.h>
#include "exynos_dp_lowlevel.h"
DECLARE_GLOBAL_DATA_PTR;
static struct exynos_dp_platform_data *dp_pd;
void __exynos_set_dp_phy(unsigned int onoff)
@ -859,6 +863,62 @@ static unsigned int exynos_dp_config_video(struct edp_device_info *edp_info)
return ret;
}
#ifdef CONFIG_OF_CONTROL
int exynos_dp_parse_dt(const void *blob, struct edp_device_info *edp_info)
{
unsigned int node = fdtdec_next_compatible(blob, 0,
COMPAT_SAMSUNG_EXYNOS5_DP);
if (node <= 0) {
debug("exynos_dp: Can't get device node for dp\n");
return -ENODEV;
}
edp_info->disp_info.h_res = fdtdec_get_int(blob, node,
"samsung,h-res", 0);
edp_info->disp_info.h_sync_width = fdtdec_get_int(blob, node,
"samsung,h-sync-width", 0);
edp_info->disp_info.h_back_porch = fdtdec_get_int(blob, node,
"samsung,h-back-porch", 0);
edp_info->disp_info.h_front_porch = fdtdec_get_int(blob, node,
"samsung,h-front-porch", 0);
edp_info->disp_info.v_res = fdtdec_get_int(blob, node,
"samsung,v-res", 0);
edp_info->disp_info.v_sync_width = fdtdec_get_int(blob, node,
"samsung,v-sync-width", 0);
edp_info->disp_info.v_back_porch = fdtdec_get_int(blob, node,
"samsung,v-back-porch", 0);
edp_info->disp_info.v_front_porch = fdtdec_get_int(blob, node,
"samsung,v-front-porch", 0);
edp_info->disp_info.v_sync_rate = fdtdec_get_int(blob, node,
"samsung,v-sync-rate", 0);
edp_info->lt_info.lt_status = fdtdec_get_int(blob, node,
"samsung,lt-status", 0);
edp_info->video_info.master_mode = fdtdec_get_int(blob, node,
"samsung,master-mode", 0);
edp_info->video_info.bist_mode = fdtdec_get_int(blob, node,
"samsung,bist-mode", 0);
edp_info->video_info.bist_pattern = fdtdec_get_int(blob, node,
"samsung,bist-pattern", 0);
edp_info->video_info.h_sync_polarity = fdtdec_get_int(blob, node,
"samsung,h-sync-polarity", 0);
edp_info->video_info.v_sync_polarity = fdtdec_get_int(blob, node,
"samsung,v-sync-polarity", 0);
edp_info->video_info.interlaced = fdtdec_get_int(blob, node,
"samsung,interlaced", 0);
edp_info->video_info.color_space = fdtdec_get_int(blob, node,
"samsung,color-space", 0);
edp_info->video_info.dynamic_range = fdtdec_get_int(blob, node,
"samsung,dynamic-range", 0);
edp_info->video_info.ycbcr_coeff = fdtdec_get_int(blob, node,
"samsung,ycbcr-coeff", 0);
edp_info->video_info.color_depth = fdtdec_get_int(blob, node,
"samsung,color-depth", 0);
return 0;
}
#endif
unsigned int exynos_init_dp(void)
{
unsigned int ret;
@ -870,11 +930,16 @@ unsigned int exynos_init_dp(void)
return -EFAULT;
}
#ifdef CONFIG_OF_CONTROL
if (exynos_dp_parse_dt(gd->fdt_blob, edp_info))
debug("unable to parse DP DT node\n");
#else
edp_info = dp_pd->edp_dev_info;
if (edp_info == NULL) {
debug("failed to get edp_info data.\n");
return -EFAULT;
}
#endif
exynos_dp_set_base_addr();

17
drivers/video/exynos_dp_lowlevel.c
View File

@ -25,12 +25,29 @@
#include <asm/arch/cpu.h>
#include <asm/arch/dp_info.h>
#include <asm/arch/dp.h>
#include <fdtdec.h>
#include <libfdt.h>
/* Declare global data pointer */
DECLARE_GLOBAL_DATA_PTR;
struct exynos_dp *dp_regs;
void exynos_dp_set_base_addr(void)
{
#ifdef CONFIG_OF_CONTROL
unsigned int node = fdtdec_next_compatible(gd->fdt_blob,
0, COMPAT_SAMSUNG_EXYNOS5_DP);
if (node <= 0)
debug("exynos_dp: Can't get device node for dp\n");
dp_regs = (struct exynos_dp *)fdtdec_get_addr(gd->fdt_blob,
node, "reg");
if (dp_regs == NULL)
debug("Can't get the DP base address\n");
#else
dp_regs = (struct exynos_dp *)samsung_get_base_dp();
#endif
}
static void exynos_dp_enable_video_input(unsigned int enable)