108a7aa1eSSimon Glass /* 208a7aa1eSSimon Glass * Copyright (C) 2012 Samsung Electronics 308a7aa1eSSimon Glass * 408a7aa1eSSimon Glass * Author: InKi Dae <inki.dae@samsung.com> 508a7aa1eSSimon Glass * Author: Donghwa Lee <dh09.lee@samsung.com> 608a7aa1eSSimon Glass * 708a7aa1eSSimon Glass * SPDX-License-Identifier: GPL-2.0+ 808a7aa1eSSimon Glass */ 908a7aa1eSSimon Glass 1008a7aa1eSSimon Glass #include <config.h> 1108a7aa1eSSimon Glass #include <common.h> 1208a7aa1eSSimon Glass #include <lcd.h> 1308a7aa1eSSimon Glass #include <fdtdec.h> 1408a7aa1eSSimon Glass #include <libfdt.h> 1508a7aa1eSSimon Glass #include <asm/io.h> 1608a7aa1eSSimon Glass #include <asm/arch/cpu.h> 1708a7aa1eSSimon Glass #include <asm/arch/clock.h> 1808a7aa1eSSimon Glass #include <asm/arch/clk.h> 1908a7aa1eSSimon Glass #include <asm/arch/mipi_dsim.h> 2008a7aa1eSSimon Glass #include <asm/arch/dp_info.h> 2108a7aa1eSSimon Glass #include <asm/arch/system.h> 2208a7aa1eSSimon Glass #include <asm/gpio.h> 2308a7aa1eSSimon Glass #include <asm-generic/errno.h> 2408a7aa1eSSimon Glass 2508a7aa1eSSimon Glass #include "exynos_fb.h" 2608a7aa1eSSimon Glass 2708a7aa1eSSimon Glass DECLARE_GLOBAL_DATA_PTR; 2808a7aa1eSSimon Glass 29aaca5b19SSimon Glass struct vidinfo panel_info = { 3008a7aa1eSSimon Glass /* 3108a7aa1eSSimon Glass * Insert a value here so that we don't end up in the BSS 3208a7aa1eSSimon Glass * Reference: drivers/video/tegra.c 3308a7aa1eSSimon Glass */ 3408a7aa1eSSimon Glass .vl_col = -1, 3508a7aa1eSSimon Glass }; 3608a7aa1eSSimon Glass 3708a7aa1eSSimon Glass ushort *configuration_get_cmap(void) 3808a7aa1eSSimon Glass { 3908a7aa1eSSimon Glass #if defined(CONFIG_LCD_LOGO) 4008a7aa1eSSimon Glass return bmp_logo_palette; 4108a7aa1eSSimon Glass #else 4208a7aa1eSSimon Glass return NULL; 4308a7aa1eSSimon Glass #endif 4408a7aa1eSSimon Glass } 4508a7aa1eSSimon Glass 4640d50021SSimon Glass static void exynos_lcd_init(struct vidinfo *vid, ulong lcd_base) 4708a7aa1eSSimon Glass { 4840d50021SSimon Glass exynos_fimd_lcd_init(vid, lcd_base); 4908a7aa1eSSimon Glass 5008a7aa1eSSimon Glass /* Enable flushing after LCD writes if requested */ 5108a7aa1eSSimon Glass lcd_set_flush_dcache(1); 5208a7aa1eSSimon Glass } 5308a7aa1eSSimon Glass 5408a7aa1eSSimon Glass __weak void exynos_cfg_lcd_gpio(void) 5508a7aa1eSSimon Glass { 5608a7aa1eSSimon Glass } 5708a7aa1eSSimon Glass 5808a7aa1eSSimon Glass __weak void exynos_backlight_on(unsigned int onoff) 5908a7aa1eSSimon Glass { 6008a7aa1eSSimon Glass } 6108a7aa1eSSimon Glass 6208a7aa1eSSimon Glass __weak void exynos_reset_lcd(void) 6308a7aa1eSSimon Glass { 6408a7aa1eSSimon Glass } 6508a7aa1eSSimon Glass 6608a7aa1eSSimon Glass __weak void exynos_lcd_power_on(void) 6708a7aa1eSSimon Glass { 6808a7aa1eSSimon Glass } 6908a7aa1eSSimon Glass 7008a7aa1eSSimon Glass __weak void exynos_cfg_ldo(void) 7108a7aa1eSSimon Glass { 7208a7aa1eSSimon Glass } 7308a7aa1eSSimon Glass 7408a7aa1eSSimon Glass __weak void exynos_enable_ldo(unsigned int onoff) 7508a7aa1eSSimon Glass { 7608a7aa1eSSimon Glass } 7708a7aa1eSSimon Glass 7808a7aa1eSSimon Glass __weak void exynos_backlight_reset(void) 7908a7aa1eSSimon Glass { 8008a7aa1eSSimon Glass } 8108a7aa1eSSimon Glass 82aaca5b19SSimon Glass __weak int exynos_lcd_misc_init(struct vidinfo *vid) 8308a7aa1eSSimon Glass { 8408a7aa1eSSimon Glass return 0; 8508a7aa1eSSimon Glass } 8608a7aa1eSSimon Glass 87aaca5b19SSimon Glass static void lcd_panel_on(struct vidinfo *vid) 8808a7aa1eSSimon Glass { 8908a7aa1eSSimon Glass struct gpio_desc pwm_out_gpio; 9008a7aa1eSSimon Glass struct gpio_desc bl_en_gpio; 9108a7aa1eSSimon Glass unsigned int node; 9208a7aa1eSSimon Glass 9308a7aa1eSSimon Glass udelay(vid->init_delay); 9408a7aa1eSSimon Glass 9508a7aa1eSSimon Glass exynos_backlight_reset(); 9608a7aa1eSSimon Glass 9708a7aa1eSSimon Glass exynos_cfg_lcd_gpio(); 9808a7aa1eSSimon Glass 9908a7aa1eSSimon Glass exynos_lcd_power_on(); 10008a7aa1eSSimon Glass 10108a7aa1eSSimon Glass udelay(vid->power_on_delay); 10208a7aa1eSSimon Glass 10308a7aa1eSSimon Glass if (vid->dp_enabled) 10408a7aa1eSSimon Glass exynos_init_dp(); 10508a7aa1eSSimon Glass 10608a7aa1eSSimon Glass exynos_reset_lcd(); 10708a7aa1eSSimon Glass 10808a7aa1eSSimon Glass udelay(vid->reset_delay); 10908a7aa1eSSimon Glass 11008a7aa1eSSimon Glass exynos_backlight_on(1); 11108a7aa1eSSimon Glass 11208a7aa1eSSimon Glass node = fdtdec_next_compatible(gd->fdt_blob, 0, 11308a7aa1eSSimon Glass COMPAT_SAMSUNG_EXYNOS_FIMD); 11408a7aa1eSSimon Glass if (node <= 0) { 11508a7aa1eSSimon Glass debug("FIMD: Can't get device node for FIMD\n"); 11608a7aa1eSSimon Glass return; 11708a7aa1eSSimon Glass } 11808a7aa1eSSimon Glass gpio_request_by_name_nodev(gd->fdt_blob, node, "samsung,pwm-out-gpio", 11908a7aa1eSSimon Glass 0, &pwm_out_gpio, 12008a7aa1eSSimon Glass GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE); 12108a7aa1eSSimon Glass 12208a7aa1eSSimon Glass gpio_request_by_name_nodev(gd->fdt_blob, node, "samsung,bl-en-gpio", 0, 12308a7aa1eSSimon Glass &bl_en_gpio, 12408a7aa1eSSimon Glass GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE); 12508a7aa1eSSimon Glass 12608a7aa1eSSimon Glass exynos_cfg_ldo(); 12708a7aa1eSSimon Glass 12808a7aa1eSSimon Glass exynos_enable_ldo(1); 12908a7aa1eSSimon Glass 13008a7aa1eSSimon Glass if (vid->mipi_enabled) 13108a7aa1eSSimon Glass exynos_mipi_dsi_init(); 13208a7aa1eSSimon Glass } 13308a7aa1eSSimon Glass 13408a7aa1eSSimon Glass int exynos_lcd_early_init(const void *blob) 13508a7aa1eSSimon Glass { 13608a7aa1eSSimon Glass unsigned int node; 13708a7aa1eSSimon Glass node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_FIMD); 13808a7aa1eSSimon Glass if (node <= 0) { 13908a7aa1eSSimon Glass debug("exynos_fb: Can't get device node for fimd\n"); 14008a7aa1eSSimon Glass return -ENODEV; 14108a7aa1eSSimon Glass } 14208a7aa1eSSimon Glass 14308a7aa1eSSimon Glass panel_info.vl_col = fdtdec_get_int(blob, node, "samsung,vl-col", 0); 14408a7aa1eSSimon Glass if (panel_info.vl_col == 0) { 14508a7aa1eSSimon Glass debug("Can't get XRES\n"); 14608a7aa1eSSimon Glass return -ENXIO; 14708a7aa1eSSimon Glass } 14808a7aa1eSSimon Glass 14908a7aa1eSSimon Glass panel_info.vl_row = fdtdec_get_int(blob, node, "samsung,vl-row", 0); 15008a7aa1eSSimon Glass if (panel_info.vl_row == 0) { 15108a7aa1eSSimon Glass debug("Can't get YRES\n"); 15208a7aa1eSSimon Glass return -ENXIO; 15308a7aa1eSSimon Glass } 15408a7aa1eSSimon Glass 15508a7aa1eSSimon Glass panel_info.vl_width = fdtdec_get_int(blob, node, 15608a7aa1eSSimon Glass "samsung,vl-width", 0); 15708a7aa1eSSimon Glass 15808a7aa1eSSimon Glass panel_info.vl_height = fdtdec_get_int(blob, node, 15908a7aa1eSSimon Glass "samsung,vl-height", 0); 16008a7aa1eSSimon Glass 16108a7aa1eSSimon Glass panel_info.vl_freq = fdtdec_get_int(blob, node, "samsung,vl-freq", 0); 16208a7aa1eSSimon Glass if (panel_info.vl_freq == 0) { 16308a7aa1eSSimon Glass debug("Can't get refresh rate\n"); 16408a7aa1eSSimon Glass return -ENXIO; 16508a7aa1eSSimon Glass } 16608a7aa1eSSimon Glass 16708a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-clkp")) 16808a7aa1eSSimon Glass panel_info.vl_clkp = CONFIG_SYS_LOW; 16908a7aa1eSSimon Glass 17008a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-oep")) 17108a7aa1eSSimon Glass panel_info.vl_oep = CONFIG_SYS_LOW; 17208a7aa1eSSimon Glass 17308a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-hsp")) 17408a7aa1eSSimon Glass panel_info.vl_hsp = CONFIG_SYS_LOW; 17508a7aa1eSSimon Glass 17608a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-vsp")) 17708a7aa1eSSimon Glass panel_info.vl_vsp = CONFIG_SYS_LOW; 17808a7aa1eSSimon Glass 17908a7aa1eSSimon Glass if (fdtdec_get_bool(blob, node, "samsung,vl-dp")) 18008a7aa1eSSimon Glass panel_info.vl_dp = CONFIG_SYS_LOW; 18108a7aa1eSSimon Glass 18208a7aa1eSSimon Glass panel_info.vl_bpix = fdtdec_get_int(blob, node, "samsung,vl-bpix", 0); 18308a7aa1eSSimon Glass if (panel_info.vl_bpix == 0) { 18408a7aa1eSSimon Glass debug("Can't get bits per pixel\n"); 18508a7aa1eSSimon Glass return -ENXIO; 18608a7aa1eSSimon Glass } 18708a7aa1eSSimon Glass 18808a7aa1eSSimon Glass panel_info.vl_hspw = fdtdec_get_int(blob, node, "samsung,vl-hspw", 0); 18908a7aa1eSSimon Glass if (panel_info.vl_hspw == 0) { 19008a7aa1eSSimon Glass debug("Can't get hsync width\n"); 19108a7aa1eSSimon Glass return -ENXIO; 19208a7aa1eSSimon Glass } 19308a7aa1eSSimon Glass 19408a7aa1eSSimon Glass panel_info.vl_hfpd = fdtdec_get_int(blob, node, "samsung,vl-hfpd", 0); 19508a7aa1eSSimon Glass if (panel_info.vl_hfpd == 0) { 19608a7aa1eSSimon Glass debug("Can't get right margin\n"); 19708a7aa1eSSimon Glass return -ENXIO; 19808a7aa1eSSimon Glass } 19908a7aa1eSSimon Glass 20008a7aa1eSSimon Glass panel_info.vl_hbpd = (u_char)fdtdec_get_int(blob, node, 20108a7aa1eSSimon Glass "samsung,vl-hbpd", 0); 20208a7aa1eSSimon Glass if (panel_info.vl_hbpd == 0) { 20308a7aa1eSSimon Glass debug("Can't get left margin\n"); 20408a7aa1eSSimon Glass return -ENXIO; 20508a7aa1eSSimon Glass } 20608a7aa1eSSimon Glass 20708a7aa1eSSimon Glass panel_info.vl_vspw = (u_char)fdtdec_get_int(blob, node, 20808a7aa1eSSimon Glass "samsung,vl-vspw", 0); 20908a7aa1eSSimon Glass if (panel_info.vl_vspw == 0) { 21008a7aa1eSSimon Glass debug("Can't get vsync width\n"); 21108a7aa1eSSimon Glass return -ENXIO; 21208a7aa1eSSimon Glass } 21308a7aa1eSSimon Glass 21408a7aa1eSSimon Glass panel_info.vl_vfpd = fdtdec_get_int(blob, node, 21508a7aa1eSSimon Glass "samsung,vl-vfpd", 0); 21608a7aa1eSSimon Glass if (panel_info.vl_vfpd == 0) { 21708a7aa1eSSimon Glass debug("Can't get lower margin\n"); 21808a7aa1eSSimon Glass return -ENXIO; 21908a7aa1eSSimon Glass } 22008a7aa1eSSimon Glass 22108a7aa1eSSimon Glass panel_info.vl_vbpd = fdtdec_get_int(blob, node, "samsung,vl-vbpd", 0); 22208a7aa1eSSimon Glass if (panel_info.vl_vbpd == 0) { 22308a7aa1eSSimon Glass debug("Can't get upper margin\n"); 22408a7aa1eSSimon Glass return -ENXIO; 22508a7aa1eSSimon Glass } 22608a7aa1eSSimon Glass 22708a7aa1eSSimon Glass panel_info.vl_cmd_allow_len = fdtdec_get_int(blob, node, 22808a7aa1eSSimon Glass "samsung,vl-cmd-allow-len", 0); 22908a7aa1eSSimon Glass 23008a7aa1eSSimon Glass panel_info.win_id = fdtdec_get_int(blob, node, "samsung,winid", 0); 23108a7aa1eSSimon Glass panel_info.init_delay = fdtdec_get_int(blob, node, 23208a7aa1eSSimon Glass "samsung,init-delay", 0); 23308a7aa1eSSimon Glass panel_info.power_on_delay = fdtdec_get_int(blob, node, 23408a7aa1eSSimon Glass "samsung,power-on-delay", 0); 23508a7aa1eSSimon Glass panel_info.reset_delay = fdtdec_get_int(blob, node, 23608a7aa1eSSimon Glass "samsung,reset-delay", 0); 23708a7aa1eSSimon Glass panel_info.interface_mode = fdtdec_get_int(blob, node, 23808a7aa1eSSimon Glass "samsung,interface-mode", 0); 23908a7aa1eSSimon Glass panel_info.mipi_enabled = fdtdec_get_int(blob, node, 24008a7aa1eSSimon Glass "samsung,mipi-enabled", 0); 24108a7aa1eSSimon Glass panel_info.dp_enabled = fdtdec_get_int(blob, node, 24208a7aa1eSSimon Glass "samsung,dp-enabled", 0); 24308a7aa1eSSimon Glass panel_info.cs_setup = fdtdec_get_int(blob, node, 24408a7aa1eSSimon Glass "samsung,cs-setup", 0); 24508a7aa1eSSimon Glass panel_info.wr_setup = fdtdec_get_int(blob, node, 24608a7aa1eSSimon Glass "samsung,wr-setup", 0); 24708a7aa1eSSimon Glass panel_info.wr_act = fdtdec_get_int(blob, node, "samsung,wr-act", 0); 24808a7aa1eSSimon Glass panel_info.wr_hold = fdtdec_get_int(blob, node, "samsung,wr-hold", 0); 24908a7aa1eSSimon Glass 25008a7aa1eSSimon Glass panel_info.logo_on = fdtdec_get_int(blob, node, "samsung,logo-on", 0); 25108a7aa1eSSimon Glass if (panel_info.logo_on) { 25208a7aa1eSSimon Glass panel_info.logo_width = fdtdec_get_int(blob, node, 25308a7aa1eSSimon Glass "samsung,logo-width", 0); 25408a7aa1eSSimon Glass panel_info.logo_height = fdtdec_get_int(blob, node, 25508a7aa1eSSimon Glass "samsung,logo-height", 0); 25608a7aa1eSSimon Glass panel_info.logo_addr = fdtdec_get_int(blob, node, 25708a7aa1eSSimon Glass "samsung,logo-addr", 0); 25808a7aa1eSSimon Glass } 25908a7aa1eSSimon Glass 26008a7aa1eSSimon Glass panel_info.rgb_mode = fdtdec_get_int(blob, node, 26108a7aa1eSSimon Glass "samsung,rgb-mode", 0); 26208a7aa1eSSimon Glass panel_info.pclk_name = fdtdec_get_int(blob, node, 26308a7aa1eSSimon Glass "samsung,pclk-name", 0); 26408a7aa1eSSimon Glass panel_info.sclk_div = fdtdec_get_int(blob, node, 26508a7aa1eSSimon Glass "samsung,sclk-div", 0); 26608a7aa1eSSimon Glass panel_info.dual_lcd_enabled = fdtdec_get_int(blob, node, 26708a7aa1eSSimon Glass "samsung,dual-lcd-enabled", 0); 26808a7aa1eSSimon Glass 26908a7aa1eSSimon Glass return 0; 27008a7aa1eSSimon Glass } 27108a7aa1eSSimon Glass 27208a7aa1eSSimon Glass void lcd_ctrl_init(void *lcdbase) 27308a7aa1eSSimon Glass { 27408a7aa1eSSimon Glass set_system_display_ctrl(); 27508a7aa1eSSimon Glass set_lcd_clk(); 27608a7aa1eSSimon Glass 27708a7aa1eSSimon Glass #ifdef CONFIG_EXYNOS_MIPI_DSIM 27808a7aa1eSSimon Glass exynos_init_dsim_platform_data(&panel_info); 27908a7aa1eSSimon Glass #endif 28008a7aa1eSSimon Glass exynos_lcd_misc_init(&panel_info); 28108a7aa1eSSimon Glass 28240d50021SSimon Glass exynos_lcd_init(&panel_info, (ulong)lcdbase); 28308a7aa1eSSimon Glass } 28408a7aa1eSSimon Glass 28508a7aa1eSSimon Glass void lcd_enable(void) 28608a7aa1eSSimon Glass { 28708a7aa1eSSimon Glass if (panel_info.logo_on) { 288*9c4d440eSSimon Glass memset((void *)gd->fb_base, 0, 289*9c4d440eSSimon Glass panel_info.vl_width * panel_info.vl_height * 29008a7aa1eSSimon Glass (NBITS(panel_info.vl_bpix) >> 3)); 29108a7aa1eSSimon Glass } 29208a7aa1eSSimon Glass 29308a7aa1eSSimon Glass lcd_panel_on(&panel_info); 29408a7aa1eSSimon Glass } 29508a7aa1eSSimon Glass 29608a7aa1eSSimon Glass /* dummy function */ 29708a7aa1eSSimon Glass void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue) 29808a7aa1eSSimon Glass { 29908a7aa1eSSimon Glass return; 30008a7aa1eSSimon Glass } 301