linux-kernel - [PATCH RESEND v1 6/8] arm64: dts: st: add ltdc support on stm32mp251

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Date: Thu, 21 Dec 2023 13:43:37 +0100
From: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Neil Armstrong
	<neil.armstrong@...aro.org>,
        Jessica Zhang <quic_jesszhan@...cinc.com>,
        Sam
 Ravnborg <sam@...nborg.org>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre
 Torgue <alexandre.torgue@...s.st.com>,
        Yannick Fertre
	<yannick.fertre@...s.st.com>,
        Raphael Gallais-Pou
	<raphael.gallais-pou@...s.st.com>,
        Philippe Cornu
	<philippe.cornu@...s.st.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Lad
 Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Thierry Reding
	<thierry.reding@...il.com>
CC: <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH RESEND v1 6/8] arm64: dts: st: add ltdc support on stm32mp251

The LCD-TFT Display Controller (LTDC) handles display composition,
scaling and rotation. It provides a parallel digital RGB flow to be used
by display interfaces.

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 93bc8a8908ce..064077e98dfd 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -212,6 +212,18 @@ i2c8: i2c@...40000 {
 				status = "disabled";
 			};
 
+			ltdc: display-controller@...10000 {
+				compatible = "st,stm32-ltdc";
+				reg = <0x48010000 0x400>;
+				st,syscon = <&syscfg>;
+				interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
+					<GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&rcc CK_BUS_LTDC>, <&rcc CK_KER_LTDC>;
+				clock-names = "bus", "lcd";
+				resets = <&rcc LTDC_R>;
+				status = "disabled";
+			};
+
 			sdmmc1: mmc@...20000 {
 				compatible = "st,stm32mp25-sdmmc2", "arm,pl18x", "arm,primecell";
 				arm,primecell-periphid = <0x00353180>;
-- 
2.25.1