diff options
Diffstat (limited to 'src/mainboard/google/geralt/display.c')
-rw-r--r-- | src/mainboard/google/geralt/display.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/mainboard/google/geralt/display.c b/src/mainboard/google/geralt/display.c new file mode 100644 index 0000000000..3db917143d --- /dev/null +++ b/src/mainboard/google/geralt/display.c @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <console/console.h> +#include <delay.h> +#include <edid.h> +#include <framebuffer_info.h> +#include <gpio.h> +#include <soc/ddp.h> +#include <soc/dptx.h> +#include <soc/gpio_common.h> +#include <soc/mtcmos.h> + +#include "display.h" +#include "gpio.h" + +/* Set up backlight control pins as output pin and power-off by default */ +static void configure_edp_panel_backlight(void) +{ + gpio_output(GPIO_AP_EDP_BKLTEN, 0); + gpio_output(GPIO_EDP_BL_PWM_1V8, 0); +} + +static void power_on_edp_panel(void) +{ + gpio_output(GPIO_EN_PP3300_EDP_DISP_X, 1); + gpio_set_pull(GPIO_EDP_HPD_1V8, GPIO_PULL_ENABLE, GPIO_PULL_UP); + gpio_set_mode(GPIO_EDP_HPD_1V8, 4); +} + +int configure_display(void) +{ + struct edid edid; + struct fb_info *info; + const char *name; + + printk(BIOS_INFO, "%s: Starting display initialization\n", __func__); + + mtcmos_display_power_on(); + configure_edp_panel_backlight(); + power_on_edp_panel(); + + mtk_ddp_init(); + mdelay(200); + + if (mtk_edp_init(&edid) < 0) { + printk(BIOS_ERR, "%s: Failed to initialize eDP\n", __func__); + return -1; + } + name = edid.ascii_string; + if (name[0] == '\0') + name = "unknown name"; + printk(BIOS_INFO, "%s: '%s %s' %dx%d@%dHz\n", __func__, + edid.manufacturer_name, name, edid.mode.ha, edid.mode.va, + edid.mode.refresh); + + edid_set_framebuffer_bits_per_pixel(&edid, 32, 0); + + mtk_ddp_mode_set(&edid); + info = fb_new_framebuffer_info_from_edid(&edid, (uintptr_t)0); + if (info) + fb_set_orientation(info, LB_FB_ORIENTATION_NORMAL); + + return 0; +} |