From: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Christophe Roullier <christophe.roullier@foss.st.com>
Cc: "Philippe Cornu" <philippe.cornu@foss.st.com>,
"Yannick Fertre" <yannick.fertre@foss.st.com>,
"Raphaël Gallais-Pou" <rgallaispou@gmail.com>,
devicetree@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 9/9] arm64: dts: st: enable display support on stm32mp257f-dk board
Date: Tue, 10 Feb 2026 11:04:02 +0100 [thread overview]
Message-ID: <20260210-display-v2-9-0592bd514958@foss.st.com> (raw)
In-Reply-To: <20260210-display-v2-0-0592bd514958@foss.st.com>
Enable the following IPs on stm32mp257f-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>
---
arch/arm64/boot/dts/st/stm32mp257f-dk.dts | 90 +++++++++++++++++++++++++++++++
1 file changed, 90 insertions(+)
diff --git a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
index 4e45562ceb3dabb19eca3340337b364f63508215..b60c13614cfb9207b8b541ee8bde4ae9aab937a8 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
@@ -55,6 +55,43 @@ led-blue {
};
};
+ 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";
+ };
+
+
memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x1 0x0>;
@@ -100,6 +137,59 @@ phy1_eth1: ethernet-phy@1 {
};
};
+&i2c2 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&i2c2_pins_b>;
+ pinctrl-1 = <&i2c2_sleep_pins_b>;
+ i2c-scl-rising-time-ns = <108>;
+ i2c-scl-falling-time-ns = <12>;
+ clock-frequency = <400000>;
+ status = "okay";
+ /* 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";
+ };
+};
+
+<dc {
+ 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 = <<dc_ep0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ lvds_out0: endpoint {
+ remote-endpoint = <&lvds_panel_in>;
+ };
+ };
+ };
+};
+
&scmi_regu {
scmi_vddio1: regulator@0 {
regulator-min-microvolt = <1800000>;
--
2.43.0
next prev parent reply other threads:[~2026-02-10 10:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-10 10:03 [PATCH v2 0/9] Enable display support for STM32MP257F-DK and STM32MP235F-DK Raphael Gallais-Pou
2026-02-10 10:03 ` [PATCH v2 1/9] arm64: dts: st: add i2c2 pins for stm32mp25 Raphael Gallais-Pou
2026-02-10 10:03 ` [PATCH v2 2/9] arm64: dts: st: add ltdc support on stm32mp231 Raphael Gallais-Pou
2026-02-10 10:03 ` [PATCH v2 3/9] arm64: dts: st: add ltdc support on stm32mp235 Raphael Gallais-Pou
2026-02-10 10:03 ` [PATCH v2 4/9] arm64: dts: st: add lvds " Raphael Gallais-Pou
2026-02-10 10:03 ` [PATCH v2 5/9] arm64: dts: st: add clock-cells to syscfg node on stm32mp231 Raphael Gallais-Pou
2026-02-10 10:03 ` [PATCH v2 6/9] arm64: dts: st: describe power supplies for stm32mp235f-dk board Raphael Gallais-Pou
2026-02-10 10:04 ` [PATCH v2 7/9] arm64: dts: st: enable display support on " Raphael Gallais-Pou
2026-02-10 10:04 ` [PATCH v2 8/9] arm64: dts: st: describe power supplies for stm32mp257f-dk board Raphael Gallais-Pou
2026-02-10 10:04 ` Raphael Gallais-Pou [this message]
2026-03-05 13:06 ` [Linux-stm32] [PATCH v2 0/9] Enable display support for STM32MP257F-DK and STM32MP235F-DK Raphael Gallais-Pou
2026-03-25 14:45 ` Alexandre TORGUE
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