linux-kernel - [PATCH 3/4] arm64: dts: ti: k3-am62-main: Add tidss clk-ctrl property

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Message-Id: <20250730-fix-edge-handling-v1-3-1bdfb3fe7922@bootlin.com>
Date: Wed, 30 Jul 2025 19:02:46 +0200
From: Louis Chauvet <louis.chauvet@...tlin.com>
To: Jyri Sarha <jyri.sarha@....fi>, 
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Sam Ravnborg <sam@...nborg.org>, 
 Benoit Parrot <bparrot@...com>, Lee Jones <lee@...nel.org>, 
 Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>, 
 Tero Kristo <kristo@...nel.org>
Cc: thomas.petazzoni@...tlin.com, Jyri Sarha <jsarha@...com>, 
 Tomi Valkeinen <tomi.valkeinen@...com>, dri-devel@...ts.freedesktop.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, stable@...r.kernel.org, 
 Louis Chauvet <louis.chauvet@...tlin.com>
Subject: [PATCH 3/4] arm64: dts: ti: k3-am62-main: Add tidss clk-ctrl
 property

For am62 processors, we need to use the newly created clk-ctrl property to
properly handle data edge sampling configuration. Add them in the main
device tree.

Fixes: 32a1795f57ee ("drm/tidss: New driver for TI Keystone platform Display SubSystem")
Signed-off-by: Louis Chauvet <louis.chauvet@...tlin.com>
---

Cc: stable@...r.kernel.org
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 9e0b6eee9ac77d66869915b2d7bec3e2275c03ea..d3131e6da8e70fde035d3c44716f939e8167795a 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -76,6 +76,11 @@ audio_refclk1: clock-controller@...4 {
 			assigned-clock-parents = <&k3_clks 157 18>;
 			#clock-cells = <0>;
 		};
+
+		dss_clk_ctrl: dss_clk_ctrl@...0 {
+			compatible = "ti,am625-dss-clk-ctrl", "syscon";
+			reg = <0x8300 0x4>;
+		};
 	};
 
 	dmss: bus@...00000 {
@@ -787,6 +792,7 @@ dss: dss@...00000 {
 			 <&k3_clks 186 2>;
 		clock-names = "fck", "vp1", "vp2";
 		interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+		ti,clk-ctrl = <&dss_clk_ctrl>;
 		status = "disabled";
 
 		dss_ports: ports {

-- 
2.50.1