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authorAjay Kumar <ajaykumar.rs@samsung.com>2013-02-21 23:53:06 +0000
committerMinkyu Kang <mk7.kang@samsung.com>2013-03-27 21:23:15 +0900
commit9947d13e51aae26903464a3bb7dae727268a3bb6 (patch)
tree5065a0305c497f81defbb0596b6176738f8ad338 /drivers/video
parent1e4706a7156469b5f1c3cbee1a4362c0f96023e8 (diff)
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video: exynos_dp: Add function to parse DP DT node
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>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/exynos_dp.c65
-rw-r--r--drivers/video/exynos_dp_lowlevel.c17
2 files changed, 82 insertions, 0 deletions
diff --git a/drivers/video/exynos_dp.c b/drivers/video/exynos_dp.c
index 5f4f25e..87bb907 100644
--- a/drivers/video/exynos_dp.c
+++ b/drivers/video/exynos_dp.c
@@ -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();
diff --git a/drivers/video/exynos_dp_lowlevel.c b/drivers/video/exynos_dp_lowlevel.c
index 0be91a5..748d9b8 100644
--- a/drivers/video/exynos_dp_lowlevel.c
+++ b/drivers/video/exynos_dp_lowlevel.c
@@ -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)