linux-kernel - [PATCH v2 5/6] ARM: dts: rockchip: Add ref clk for hdmi

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Message-ID: <20250325132944.171111-6-andyshrk@163.com>
Date: Tue, 25 Mar 2025 21:29:39 +0800
From: Andy Yan <andyshrk@....com>
To: heiko@...ech.de
Cc: conor+dt@...nel.org,
	krzk+dt@...nel.org,
	robh@...nel.org,
	hjc@...k-chips.com,
	devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v2 5/6] ARM: dts: rockchip: Add ref clk for hdmi

From: Andy Yan <andy.yan@...k-chips.com>

The RK3036 HDMI DDC bus requires it's PHY's reference clock to be
enabled first before normal DDC communication can be carried out.

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
---

(no changes since v1)

 arch/arm/boot/dts/rockchip/rk3036.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/rockchip/rk3036.dtsi b/arch/arm/boot/dts/rockchip/rk3036.dtsi
index 6039a0908af1c..22685cd23a708 100644
--- a/arch/arm/boot/dts/rockchip/rk3036.dtsi
+++ b/arch/arm/boot/dts/rockchip/rk3036.dtsi
@@ -403,8 +403,8 @@ hdmi: hdmi@...34000 {
 		compatible = "rockchip,rk3036-inno-hdmi";
 		reg = <0x20034000 0x4000>;
 		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&cru  PCLK_HDMI>;
-		clock-names = "pclk";
+		clocks = <&cru PCLK_HDMI>, <&cru SCLK_LCDC>;
+		clock-names = "pclk", "ref";
 		pinctrl-names = "default";
 		pinctrl-0 = <&hdmi_ctl>;
 		#sound-dai-cells = <0>;
-- 
2.43.0