[U-Boot] [PATCH V2 02/12] video:mipidsim:fdt: Add DT support for mipi dsim driver
Piotr Wilczek
p.wilczek at samsung.com
Thu Feb 13 15:10:20 CET 2014
This patch enables parsing mipi data from device tree.
Non device tree case is still supported.
Signed-off-by: Piotr Wilczek <p.wilczek at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Minkyu Kang <mk7.kang at samsung.com>
---
Changes for v2:
- removed panel specific init function 's6e8ax0_init' to the board file;
arch/arm/include/asm/arch-exynos/mipi_dsim.h | 5 ++
drivers/video/exynos_mipi_dsi.c | 96 ++++++++++++++++++++++++++
include/fdtdec.h | 1 +
lib/fdtdec.c | 1 +
4 files changed, 103 insertions(+)
diff --git a/arch/arm/include/asm/arch-exynos/mipi_dsim.h b/arch/arm/include/asm/arch-exynos/mipi_dsim.h
index 40aca71..50e5c25 100644
--- a/arch/arm/include/asm/arch-exynos/mipi_dsim.h
+++ b/arch/arm/include/asm/arch-exynos/mipi_dsim.h
@@ -12,6 +12,7 @@
#include <linux/list.h>
#include <linux/fb.h>
+#include <lcd.h>
#define PANEL_NAME_SIZE (32)
@@ -368,8 +369,12 @@ int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device
*lcd_dev);
void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd);
+void exynos_init_dsim_platform_data(vidinfo_t *vid);
/* panel driver init based on mipi dsi interface */
void s6e8ax0_init(void);
+#ifdef CONFIG_OF_CONTROL
+extern int mipi_power(void);
+#endif
#endif /* _DSIM_H */
diff --git a/drivers/video/exynos_mipi_dsi.c b/drivers/video/exynos_mipi_dsi.c
index 8bb8fea..6c10f11 100644
--- a/drivers/video/exynos_mipi_dsi.c
+++ b/drivers/video/exynos_mipi_dsi.c
@@ -9,6 +9,8 @@
#include <common.h>
#include <malloc.h>
+#include <fdtdec.h>
+#include <libfdt.h>
#include <linux/err.h>
#include <asm/arch/dsim.h>
#include <asm/arch/mipi_dsim.h>
@@ -22,7 +24,14 @@
#define master_to_driver(a) (a->dsim_lcd_drv)
#define master_to_device(a) (a->dsim_lcd_dev)
+DECLARE_GLOBAL_DATA_PTR;
+
static struct exynos_platform_mipi_dsim *dsim_pd;
+#ifdef CONFIG_OF_CONTROL
+static struct mipi_dsim_config dsim_config_dt;
+static struct exynos_platform_mipi_dsim dsim_platform_data_dt;
+static struct mipi_dsim_lcd_device mipi_lcd_device_dt;
+#endif
struct mipi_dsim_ddi {
int bus_id;
@@ -238,3 +247,90 @@ void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd)
dsim_pd = pd;
}
+
+#ifdef CONFIG_OF_CONTROL
+int exynos_dsim_config_parse_dt(const void *blob)
+{
+ int node;
+
+ node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_MIPI_DSI);
+ if (node <= 0) {
+ printf("exynos_mipi_dsi: Can't get device node for mipi dsi\n");
+ return -ENODEV;
+ }
+
+ dsim_config_dt.e_interface = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e_interface", 0);
+
+ dsim_config_dt.e_virtual_ch = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e_virtual_ch", 0);
+
+ dsim_config_dt.e_pixel_format = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e_pixel_format", 0);
+
+ dsim_config_dt.e_burst_mode = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e_burst_mode", 0);
+
+ dsim_config_dt.e_no_data_lane = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e_no_data_lane", 0);
+
+ dsim_config_dt.e_byte_clk = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e_byte_clk", 0);
+
+ dsim_config_dt.hfp = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-hfp", 0);
+
+ dsim_config_dt.p = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-p", 0);
+ dsim_config_dt.m = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-m", 0);
+ dsim_config_dt.s = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-s", 0);
+
+ dsim_config_dt.pll_stable_time = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-pll_stable_time", 0);
+
+ dsim_config_dt.esc_clk = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-esc_clk", 0);
+
+ dsim_config_dt.stop_holding_cnt = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-stop_holding_cnt", 0);
+
+ dsim_config_dt.bta_timeout = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-bta_timeout", 0);
+
+ dsim_config_dt.rx_timeout = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-rx_timeout", 0);
+
+ mipi_lcd_device_dt.name = fdtdec_get_config_string(blob,
+ "samsung,dsim-device-name");
+
+ mipi_lcd_device_dt.id = fdtdec_get_int(blob, node,
+ "samsung,dsim-device-id", 0);
+
+ mipi_lcd_device_dt.bus_id = fdtdec_get_int(blob, node,
+ "samsung,dsim-device-bus_id", 0);
+
+ mipi_lcd_device_dt.reverse_panel = fdtdec_get_int(blob, node,
+ "samsung,dsim-device-reverse_panel", 0);
+
+ return 0;
+}
+
+void exynos_init_dsim_platform_data(vidinfo_t *vid)
+{
+ if (exynos_dsim_config_parse_dt(gd->fdt_blob))
+ debug("Can't get proper dsim config.\n");
+
+ strcpy(dsim_platform_data_dt.lcd_panel_name, mipi_lcd_device_dt.name);
+ dsim_platform_data_dt.dsim_config = &dsim_config_dt;
+ dsim_platform_data_dt.mipi_power = mipi_power;
+ dsim_platform_data_dt.phy_enable = set_mipi_phy_ctrl;
+ dsim_platform_data_dt.lcd_panel_info = (void *)vid;
+
+ mipi_lcd_device_dt.platform_data = (void *)&dsim_platform_data_dt;
+ exynos_mipi_dsi_register_lcd_device(&mipi_lcd_device_dt);
+
+ dsim_pd = &dsim_platform_data_dt;
+}
+#endif
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 433d6a7..f12b4aa 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -78,6 +78,7 @@ enum fdt_compat_id {
COMPAT_SAMSUNG_EXYNOS5_USB3_PHY,/* Exynos phy controller for usb3.0 */
COMPAT_SAMSUNG_EXYNOS_TMU, /* Exynos TMU */
COMPAT_SAMSUNG_EXYNOS_FIMD, /* Exynos Display controller */
+ COMPAT_SAMSUNG_EXYNOS_MIPI_DSI, /* Exynos mipi dsi */
COMPAT_SAMSUNG_EXYNOS5_DP, /* Exynos Display port controller */
COMPAT_SAMSUNG_EXYNOS5_DWMMC, /* Exynos5 DWMMC controller */
COMPAT_SAMSUNG_EXYNOS_SERIAL, /* Exynos UART */
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 207314f..46e67ff 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -51,6 +51,7 @@ static const char * const compat_names[COMPAT_COUNT] = {
COMPAT(SAMSUNG_EXYNOS5_USB3_PHY, "samsung,exynos5250-usb3-phy"),
COMPAT(SAMSUNG_EXYNOS_TMU, "samsung,exynos-tmu"),
COMPAT(SAMSUNG_EXYNOS_FIMD, "samsung,exynos-fimd"),
+ COMPAT(SAMSUNG_EXYNOS_MIPI_DSI, "samsung,exynos-mipi-dsi"),
COMPAT(SAMSUNG_EXYNOS5_DP, "samsung,exynos5-dp"),
COMPAT(SAMSUNG_EXYNOS5_DWMMC, "samsung,exynos5250-dwmmc"),
COMPAT(SAMSUNG_EXYNOS_SERIAL, "samsung,exynos4210-uart"),
--
1.7.9.5
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