Add initialization code for peach_pit panel, parade bridge chip, and backlight.
Signed-off-by: Ajay Kumar ajaykumar.rs@samsung.com Acked-by: Simon Glass sjg@chromium.org Tested-by: Simon Glass sjg@chromium.org --- arch/arm/include/asm/arch-exynos/system.h | 3 + board/samsung/smdk5420/smdk5420.c | 129 +++++++++++------------------- 2 files changed, 50 insertions(+), 82 deletions(-)
diff --git a/arch/arm/include/asm/arch-exynos/system.h b/arch/arm/include/asm/arch-exynos/system.h index 4968d3d..320763f 100644 --- a/arch/arm/include/asm/arch-exynos/system.h +++ b/arch/arm/include/asm/arch-exynos/system.h @@ -41,4 +41,7 @@ void set_usbhost_mode(unsigned int mode); void set_system_display_ctrl(void); int exynos_lcd_early_init(const void *blob);
+/* Initialize the Parade dP<->LVDS bridge if present */ +int parade_init(const void *blob); + #endif /* _EXYNOS4_SYSTEM_H */ diff --git a/board/samsung/smdk5420/smdk5420.c b/board/samsung/smdk5420/smdk5420.c index 183c522..270ee83 100644 --- a/board/samsung/smdk5420/smdk5420.c +++ b/board/samsung/smdk5420/smdk5420.c @@ -10,11 +10,14 @@ #include <i2c.h> #include <lcd.h> #include <spi.h> +#include <errno.h> #include <asm/arch/board.h> #include <asm/arch/cpu.h> #include <asm/arch/gpio.h> #include <asm/arch/pinmux.h> +#include <asm/arch/system.h> #include <asm/arch/dp_info.h> +#include <power/tps65090_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -40,95 +43,57 @@ int exynos_init(void) }
#ifdef CONFIG_LCD -void cfg_lcd_gpio(void) +static int has_edp_bridge(void) { - /* For Backlight */ - gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_OUTPUT); - gpio_set_value(EXYNOS5420_GPIO_B20, 1); + int node; + + node = fdtdec_next_compatible(gd->fdt_blob, 0, COMPAT_PARADE_PS8625);
- /* LCD power on */ - gpio_cfg_pin(EXYNOS5420_GPIO_X15, S5P_GPIO_OUTPUT); - gpio_set_value(EXYNOS5420_GPIO_X15, 1); + /* No node for bridge in device tree. */ + if (node <= 0) + return 0;
- /* Set Hotplug detect for DP */ - gpio_cfg_pin(EXYNOS5420_GPIO_X07, S5P_GPIO_FUNC(0x3)); + /* Default is with bridge ic */ + return 1; }
-vidinfo_t panel_info = { - .vl_freq = 60, - .vl_col = 2560, - .vl_row = 1600, - .vl_width = 2560, - .vl_height = 1600, - .vl_clkp = CONFIG_SYS_LOW, - .vl_hsp = CONFIG_SYS_LOW, - .vl_vsp = CONFIG_SYS_LOW, - .vl_dp = CONFIG_SYS_LOW, - .vl_bpix = 4, /* LCD_BPP = 2^4, for output conosle on LCD */ - - /* wDP panel timing infomation */ - .vl_hspw = 32, - .vl_hbpd = 80, - .vl_hfpd = 48, - - .vl_vspw = 6, - .vl_vbpd = 37, - .vl_vfpd = 3, - .vl_cmd_allow_len = 0xf, - - .win_id = 3, - .cfg_gpio = cfg_lcd_gpio, - .backlight_on = NULL, - .lcd_power_on = NULL, - .reset_lcd = NULL, - .dual_lcd_enabled = 0, - - .init_delay = 0, - .power_on_delay = 0, - .reset_delay = 0, - .interface_mode = FIMD_RGB_INTERFACE, - .dp_enabled = 1, -}; - -static struct edp_device_info edp_info = { - .disp_info = { - .h_res = 2560, - .h_sync_width = 32, - .h_back_porch = 80, - .h_front_porch = 48, - .v_res = 1600, - .v_sync_width = 6, - .v_back_porch = 37, - .v_front_porch = 3, - .v_sync_rate = 60, - }, - .lt_info = { - .lt_status = DP_LT_NONE, - }, - .video_info = { - .master_mode = 0, - .bist_mode = DP_DISABLE, - .bist_pattern = NO_PATTERN, - .h_sync_polarity = 0, - .v_sync_polarity = 0, - .interlaced = 0, - .color_space = COLOR_RGB, - .dynamic_range = VESA, - .ycbcr_coeff = COLOR_YCBCR601, - .color_depth = COLOR_8, - }, -}; - -static struct exynos_dp_platform_data dp_platform_data = { - .phy_enable = set_dp_phy_ctrl, - .edp_dev_info = &edp_info, -}; - -void init_panel_info(vidinfo_t *vid) +void exynos_lcd_power_on(void) { - vid->rgb_mode = MODE_RGB_P; + int ret; + +#ifdef CONFIG_POWER_TPS65090 + ret = tps65090_init(); + if (ret < 0) { + printf("%s: tps65090_init() failed\n", __func__); + return; + } + + tps65090_fet_enable(6); +#endif + + mdelay(5); + + /* TODO(ajaykumar.rs@samsung.com): Use device tree */ + gpio_direction_output(EXYNOS5420_GPIO_X35, 1); /* EDP_SLP# */ + mdelay(10); + gpio_direction_output(EXYNOS5420_GPIO_Y77, 1); /* EDP_RST# */ + gpio_direction_input(EXYNOS5420_GPIO_X26); /* EDP_HPD */ + gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE);
- exynos_set_dp_platform_data(&dp_platform_data); + if (has_edp_bridge()) + if (parade_init(gd->fdt_blob)) + printf("%s: ps8625_init() failed\n", __func__); +} + +void exynos_backlight_on(unsigned int onoff) +{ + /* For PWM */ + gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_FUNC(0x1)); + gpio_set_value(EXYNOS5420_GPIO_B20, 1); + +#ifdef CONFIG_POWER_TPS65090 + tps65090_fet_enable(1); +#endif } #endif