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arm64: dts: st: enable display support on stm32mp235f-dk board

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Enable the following IPs on stm32mp235f-dk 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@foss.st.com>
Link: https://lore.kernel.org/r/20260210-display-v2-7-0592bd514958@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Raphael Gallais-Pou 2026-03-25 15:36:35 +01:00 committed by Alexandre Torgue
parent 963758188e
commit 973f230c40
1 changed files with 76 additions and 0 deletions
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76
arch/arm64/boot/dts/st/stm32mp235f-dk.dts
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@ -77,6 +77,42 @@ u-boot {
};
};
panel_lvds: display {
compatible = "edt,etml0700z9ndha", "panel-lvds";
enable-gpios = <&gpioi 4 GPIO_ACTIVE_HIGH>;
backlight = <&panel_lvds_backlight>;
power-supply = <&scmi_v3v3>;
width-mm = <156>;
height-mm = <92>;
data-mapping = "vesa-24";
status = "okay";
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 4 GPIO_ACTIVE_HIGH>;
default-on;
status = "okay";
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
@ -128,6 +164,15 @@ &i2c2 {
/* spare dmas for other usage */
/delete-property/dmas;
/delete-property/dma-names;
ili2511: ili2511@41 {
compatible = "ilitek,ili251x";
reg = <0x41>;
interrupt-parent = <&gpioi>;
interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
reset-gpios = <&gpioi 0 GPIO_ACTIVE_LOW>;
status = "okay";
};
};
&i2c8 {
@ -143,6 +188,37 @@ &i2c8 {
/delete-property/dma-names;
};
&ltdc {
status = "okay";
port {
ltdc_ep0_out: endpoint {
remote-endpoint = <&lvds_in>;
};
};
};
&lvds {
status = "okay";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
lvds_in: endpoint {
remote-endpoint = <&ltdc_ep0_out>;
};
};
port@1 {
reg = <1>;
lvds_out0: endpoint {
remote-endpoint = <&lvds_panel_in>;
};
};
};
};
&scmi_regu {
scmi_vddio1: regulator@0 {
regulator-min-microvolt = <1800000>;