[PATCH 11/12] arm64: dts: st: enable display support on stm32mp257f-ev1 board
Raphael Gallais-Pou
raphael.gallais-pou at foss.st.com
Fri Jul 25 03:04:03 PDT 2025
Enable the following IPs on stm32mp257f-ev1 in order to get display:
* LTDC
* LVDS
* WSVGA LVDS panel (1024x600)
* Panel LVDS backlight as GPIO backlight
* ILI2511 i2c touchscreen
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou at foss.st.com>
---
arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 79 ++++++++++++++++++++++++++++++
1 file changed, 79 insertions(+)
diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 2f561ad4066544445e93db78557bc4be1c27095a..b324b0c226ddf043e62f01245240f3e8d2b0a53c 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -86,6 +86,43 @@ mm_ospi1: mm-ospi at 60000000 {
no-map;
};
};
+
+ panel_lvds: display {
+ compatible = "edt,etml0700z9ndha", "panel-lvds";
+ enable-gpios = <&gpiog 15 GPIO_ACTIVE_HIGH>;
+ backlight = <&panel_lvds_backlight>;
+ power-supply = <&scmi_v3v3>;
+ status = "okay";
+
+ width-mm = <156>;
+ height-mm = <92>;
+ data-mapping = "vesa-24";
+
+ panel-timing {
+ clock-frequency = <54000000>;
+ hactive = <1024>;
+ vactive = <600>;
+ hfront-porch = <150>;
+ hback-porch = <150>;
+ hsync-len = <21>;
+ vfront-porch = <24>;
+ vback-porch = <24>;
+ vsync-len = <21>;
+ };
+
+ port {
+ lvds_panel_in: endpoint {
+ remote-endpoint = <&lvds_out0>;
+ };
+ };
+ };
+
+ panel_lvds_backlight: backlight {
+ compatible = "gpio-backlight";
+ gpios = <&gpioi 5 GPIO_ACTIVE_HIGH>;
+ default-on;
+ status = "okay";
+ };
};
&arm_wdt {
@@ -183,6 +220,15 @@ imx335_ep: endpoint {
};
};
};
+
+ ili2511: ili2511 at 41 {
+ compatible = "ilitek,ili251x";
+ reg = <0x41>;
+ interrupt-parent = <&gpioi>;
+ interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&gpiog 14 GPIO_ACTIVE_LOW>;
+ status = "okay";
+ };
};
&i2c8 {
@@ -230,6 +276,39 @@ timer {
};
};
+<dc {
+ status = "okay";
+
+ port {
+ ltdc_ep0_out: endpoint {
+ remote-endpoint = <&lvds_in>;
+ };
+ };
+};
+
+&lvds {
+ status = "okay";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 0 {
+ reg = <0>;
+ lvds_in: endpoint {
+ remote-endpoint = <<dc_ep0_out>;
+ };
+ };
+
+ port at 1 {
+ reg = <1>;
+ lvds_out0: endpoint {
+ remote-endpoint = <&lvds_panel_in>;
+ };
+ };
+ };
+};
+
&rtc {
status = "okay";
};
--
2.25.1
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