diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/sunxi_display.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index dbda97e746..4e12150027 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -18,6 +18,7 @@ #include <errno.h> #include <fdtdec.h> #include <fdt_support.h> +#include <i2c.h> #include <video_fb.h> #include "videomodes.h" #include "hitachi_tx18d42vm_lcd.h" @@ -592,7 +593,7 @@ static void sunxi_lcdc_enable(void) static void sunxi_lcdc_panel_enable(void) { - int pin; + int pin, reset_pin; /* * Start with backlight disabled to avoid the screen flashing to @@ -610,6 +611,12 @@ static void sunxi_lcdc_panel_enable(void) gpio_direction_output(pin, PWM_OFF); } + reset_pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_RESET); + if (reset_pin != -1) { + gpio_request(reset_pin, "lcd_reset"); + gpio_direction_output(reset_pin, 0); /* Assert reset */ + } + /* Give the backlight some time to turn off and power up the panel. */ mdelay(40); pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_POWER); @@ -617,6 +624,9 @@ static void sunxi_lcdc_panel_enable(void) gpio_request(pin, "lcd_power"); gpio_direction_output(pin, 1); } + + if (reset_pin != -1) + gpio_direction_output(reset_pin, 1); /* De-assert reset */ } static void sunxi_lcdc_backlight_enable(void) @@ -1021,6 +1031,12 @@ static void sunxi_mode_set(const struct ctfb_res_modes *mode, mdelay(50); /* Wait for lcd controller power on */ hitachi_tx18d42vm_init(); } + if (IS_ENABLED(CONFIG_VIDEO_LCD_TL059WV5C0)) { + unsigned int orig_i2c_bus = i2c_get_bus_num(); + i2c_set_bus_num(CONFIG_VIDEO_LCD_I2C_BUS); + i2c_reg_write(0x5c, 0x04, 0x42); /* Turn on the LCD */ + i2c_set_bus_num(orig_i2c_bus); + } sunxi_composer_mode_set(mode, address); sunxi_lcdc_tcon0_mode_set(mode, false); sunxi_composer_enable(); |
