mb/google/geralt: Power on Samsung ATNA33XC20 eDP panel

Geralt uses Samsung panel, and Mutto is responsible for bonding the
panel and touch, so rename the panel description.
Add power-on sequence for Samsung ATNA33XC20 panel.

EDID Info:
header:         00 ff ff ff ff ff ff 00
serial number:  4c 83 62 41 00 00 00 00 28 1e
version:        01 04
basic params:   b5 1d 11 78 02
chroma info:    0c f1 ae 52 3c b9 23 0c 50 54
established:    00 00 00
standard:       01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
descriptor 1:   35 36 80 a0 70 38 20 40 30 20 88 00 26 a5 10 00 00 1b
descriptor 2:   35 36 80 a0 70 38 20 40 30 20 88 00 26 a5 10 00 00 1b
descriptor 3:   00 00 00 0f 00 d1 09 3c d1 09 3c 28 80 00 00 00 00 00
descriptor 4:   00 00 00 fe 00 41 54 4e 41 33 33 58 43 32 30 2d 30 20
extensions:     01
checksum:       6f

BUG=b:276097739
TEST=test firmware display pass.

Signed-off-by: Jianeng Ceng <cengjianeng@huaqin.corp-partner.google.com>
Change-Id: Ibd2d05c7eef1360ca954316f2e76b21ed1f85be8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74115
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: cong yang <yangcong5@huaqin.corp-partner.google.com>
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: jason-ch chen <Jason-ch.Chen@mediatek.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/geralt/panel_geralt.c b/src/mainboard/google/geralt/panel_geralt.c
index 1cb8e47..159bc76 100644
--- a/src/mainboard/google/geralt/panel_geralt.c
+++ b/src/mainboard/google/geralt/panel_geralt.c
@@ -22,9 +22,9 @@
 	gpio_output(GPIO_MIPI_BL_PWM_1V8, 0);
 }
 
-static void configure_edp_aux_backlight(void)
+static void configure_edp_backlight(void)
 {
-	/* TODO: Add edp aux backlight for MUTTO_B152731E1 when we get MUTTO_B152731E1 */
+	gpio_output(GPIO_AP_DISP_BKLTEN, 0);
 }
 
 static void power_on_mipi_boe_tv110c9m_ll0(void)
@@ -48,9 +48,11 @@
 	mdelay(6);
 }
 
-static void power_on_edp_mutto_b152731e1(void)
+static void power_on_edp_samsung_atana33xc20(void)
 {
-	/* TODO: Add the poweron for MUTTO_B152731E1 when we get MUTTO_B152731E1 */
+	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);
 }
 
 static struct panel_description panels[] = {
@@ -62,9 +64,9 @@
 		.pwm_ctrl_gpio = true,
 	},
 	[11] = {
-		.name = "MUTTO_B152731E1",
-		.power_on = power_on_edp_mutto_b152731e1,
-		.configure_panel_backlight = configure_edp_aux_backlight,
+		.name = "SAMSUNG_ATANA33XC20",
+		.power_on = power_on_edp_samsung_atana33xc20,
+		.configure_panel_backlight = configure_edp_backlight,
 		.disp_path = DISP_PATH_EDP,
 		.pwm_ctrl_gpio = false,
 	},