exynos5420: add callbacks needed for exynos_fb driver

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>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/arch/arm/include/asm/arch-exynos/system.h b/arch/arm/include/asm/arch-exynos/system.h
index 4968d3dd2e6cd732f4f49482a78464bea8c0d50f..320763fd8cf1edcc2a00fd5081a20bee09956204 100644 (file)
--- 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 183c52248a331ba23352a47b96a9f8fe21bbbb33..270ee834e65695210c88668f2beab5e06ac4a304 100644 (file)
--- 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