linux-kernel - [PATCH v1 7/8] arm64: dts: st: add lvds support on stm32mp253

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Message-ID: <20231221123037.418851-8-raphael.gallais-pou@foss.st.com>
Date: Thu, 21 Dec 2023 13:30:36 +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 v1 7/8] arm64: dts: st: add lvds support on stm32mp253

This patch adds LVDS support on stm32mp253.  The LVDS is used on
STM32MP2 as a display interface.  LVDS PLL clock is binded to the LTDC
input clock.

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp253.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp253.dtsi b/arch/arm64/boot/dts/st/stm32mp253.dtsi
index af48e82efe8a..bcc605e502de 100644
--- a/arch/arm64/boot/dts/st/stm32mp253.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp253.dtsi
@@ -21,3 +21,20 @@ arm-pmu {
 		interrupt-affinity = <&cpu0>, <&cpu1>;
 	};
 };
+
+&ltdc {
+	clocks = <&rcc CK_BUS_LTDC>, <&rcc CK_KER_LTDC>, <&lvds 0>;
+	clock-names = "bus", "lcd", "lvds";
+};
+
+&rifsc {
+	lvds: lvds@...60000 {
+		#clock-cells = <0>;
+		compatible = "st,stm32-lvds";
+		reg = <0x48060000 0x2000>;
+		clocks = <&rcc CK_BUS_LVDS>, <&rcc CK_KER_LVDSPHY>;
+		clock-names = "pclk", "ref";
+		resets = <&rcc LVDS_R>;
+		status = "disabled";
+	};
+};
-- 
2.25.1