ddr: altera: sdram: Add missing kerneldoc

[karo-tx-uboot.git] / drivers / video / exynos_fb.c

diff --git a/drivers/video/exynos_fb.c b/drivers/video/exynos_fb.c
index 5c7ec9199b551fe992e2c289e8210df44cd74ece..8f3b8263dab6e8a328e3056b413620ef7e3e241c 100644 (file)
--- a/drivers/video/exynos_fb.c
+++ b/drivers/video/exynos_fb.c
@@ -4,7 +4,7 @@
  * Author: InKi Dae <inki.dae@samsung.com>
  * Author: Donghwa Lee <dh09.lee@samsung.com>
  *
- * SPDX-License-Identifier:    GPL-2.0+ 
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <config.h>
@@ -19,6 +19,7 @@
 #include <asm/arch/mipi_dsim.h>
 #include <asm/arch/dp_info.h>
 #include <asm/arch/system.h>
+#include <asm/gpio.h>
 #include <asm-generic/errno.h>
 
 #include "exynos_fb.h"
@@ -27,20 +28,25 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static unsigned int panel_width, panel_height;
 
-/*
- * board_init_f(arch/arm/lib/board.c) calls lcd_setmem() which needs
- * panel_info.vl_col, panel_info.vl_row and panel_info.vl_bpix to reserve
- * FB memory at a very early stage, i.e even before exynos_fimd_parse_dt()
- * is called. So, we are forced to statically assign it.
- */
 #ifdef CONFIG_OF_CONTROL
 vidinfo_t panel_info  = {
-       .vl_col = LCD_XRES,
-       .vl_row = LCD_YRES,
-       .vl_bpix = LCD_COLOR16,
+       /*
+        * Insert a value here so that we don't end up in the BSS
+        * Reference: drivers/video/tegra.c
+        */
+       .vl_col = -1,
 };
 #endif
 
+ushort *configuration_get_cmap(void)
+{
+#if defined(CONFIG_LCD_LOGO)
+       return bmp_logo_palette;
+#else
+       return NULL;
+#endif
+}
+
 static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
 {
        unsigned long palette_size;
@@ -62,75 +68,45 @@ static void exynos_lcd_init(vidinfo_t *vid)
        lcd_set_flush_dcache(1);
 }
 
-#ifdef CONFIG_CMD_BMP
-static void draw_logo(void)
+__weak void exynos_cfg_lcd_gpio(void)
 {
-       int x, y;
-       ulong addr;
-
-       if (panel_width >= panel_info.logo_width) {
-               x = ((panel_width - panel_info.logo_width) >> 1);
-       } else {
-               x = 0;
-               printf("Warning: image width is bigger than display width\n");
-       }
-
-       if (panel_height >= panel_info.logo_height) {
-               y = ((panel_height - panel_info.logo_height) >> 1) - 4;
-       } else {
-               y = 0;
-               printf("Warning: image height is bigger than display height\n");
-       }
-
-       addr = panel_info.logo_addr;
-       bmp_display(addr, x, y);
 }
-#endif
 
-void __exynos_cfg_lcd_gpio(void)
+__weak void exynos_backlight_on(unsigned int onoff)
 {
 }
-void exynos_cfg_lcd_gpio(void)
-       __attribute__((weak, alias("__exynos_cfg_lcd_gpio")));
 
-void __exynos_backlight_on(unsigned int onoff)
+__weak void exynos_reset_lcd(void)
 {
 }
-void exynos_backlight_on(unsigned int onoff)
-       __attribute__((weak, alias("__exynos_cfg_lcd_gpio")));
 
-void __exynos_reset_lcd(void)
+__weak void exynos_lcd_power_on(void)
 {
 }
-void exynos_reset_lcd(void)
-       __attribute__((weak, alias("__exynos_reset_lcd")));
 
-void __exynos_lcd_power_on(void)
+__weak void exynos_cfg_ldo(void)
 {
 }
-void exynos_lcd_power_on(void)
-       __attribute__((weak, alias("__exynos_lcd_power_on")));
 
-void __exynos_cfg_ldo(void)
+__weak void exynos_enable_ldo(unsigned int onoff)
 {
 }
-void exynos_cfg_ldo(void)
-       __attribute__((weak, alias("__exynos_cfg_ldo")));
 
-void __exynos_enable_ldo(unsigned int onoff)
+__weak void exynos_backlight_reset(void)
 {
 }
-void exynos_enable_ldo(unsigned int onoff)
-       __attribute__((weak, alias("__exynos_enable_ldo")));
 
-void __exynos_backlight_reset(void)
+__weak int exynos_lcd_misc_init(vidinfo_t *vid)
 {
+       return 0;
 }
-void exynos_backlight_reset(void)
-       __attribute__((weak, alias("__exynos_backlight_reset")));
 
 static void lcd_panel_on(vidinfo_t *vid)
 {
+       struct gpio_desc pwm_out_gpio;
+       struct gpio_desc bl_en_gpio;
+       unsigned int node;
+
        udelay(vid->init_delay);
 
        exynos_backlight_reset();
@@ -150,6 +126,22 @@ static void lcd_panel_on(vidinfo_t *vid)
 
        exynos_backlight_on(1);
 
+#ifdef CONFIG_OF_CONTROL
+       node = fdtdec_next_compatible(gd->fdt_blob, 0,
+                                               COMPAT_SAMSUNG_EXYNOS_FIMD);
+       if (node <= 0) {
+               debug("FIMD: Can't get device node for FIMD\n");
+               return;
+       }
+       gpio_request_by_name_nodev(gd->fdt_blob, node, "samsung,pwm-out-gpio",
+                                  0, &pwm_out_gpio,
+                                  GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
+
+       gpio_request_by_name_nodev(gd->fdt_blob, node, "samsung,bl-en-gpio", 0,
+                                  &bl_en_gpio,
+                                  GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
+
+#endif
        exynos_cfg_ldo();
 
        exynos_enable_ldo(1);
@@ -159,7 +151,7 @@ static void lcd_panel_on(vidinfo_t *vid)
 }
 
 #ifdef CONFIG_OF_CONTROL
-int exynos_fimd_parse_dt(const void *blob)
+int exynos_lcd_early_init(const void *blob)
 {
        unsigned int node;
        node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_FIMD);
@@ -304,12 +296,15 @@ void lcd_ctrl_init(void *lcdbase)
        set_lcd_clk();
 
 #ifdef CONFIG_OF_CONTROL
-       if (exynos_fimd_parse_dt(gd->fdt_blob))
-               debug("Can't get proper panel info\n");
+#ifdef CONFIG_EXYNOS_MIPI_DSIM
+       exynos_init_dsim_platform_data(&panel_info);
+#endif
+       exynos_lcd_misc_init(&panel_info);
 #else
        /* initialize parameters which is specific to panel. */
        init_panel_info(&panel_info);
 #endif
+
        panel_width = panel_info.vl_width;
        panel_height = panel_info.vl_height;
 
@@ -323,9 +318,6 @@ void lcd_enable(void)
        if (panel_info.logo_on) {
                memset((void *) gd->fb_base, 0, panel_width * panel_height *
                                (NBITS(panel_info.vl_bpix) >> 3));
-#ifdef CONFIG_CMD_BMP
-               draw_logo();
-#endif
        }
 
        lcd_panel_on(&panel_info);