linux-kernel - [PATCH 3/4] arm64: dts: rockchip: Add HDMI1 PHY PLL clock source to VOP2 on RK3588

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Message-Id: <20250215-vop2-hdmi1-disp-modes-v1-3-81962a7151d6@collabora.com>
Date: Sat, 15 Feb 2025 02:55:39 +0200
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Sandy Huang <hjc@...k-chips.com>, 
 Heiko Stübner <heiko@...ech.de>, 
 Andy Yan <andy.yan@...k-chips.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>
Cc: kernel@...labora.com, dri-devel@...ts.freedesktop.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH 3/4] arm64: dts: rockchip: Add HDMI1 PHY PLL clock source
 to VOP2 on RK3588

VOP2 on RK3588 is able to use the HDMI PHY PLL as an alternative and
more accurate pixel clock source to improve handling of display modes up
to 4K@...z on video ports 0, 1 and 2.

The HDMI1 PHY PLL clock source cannot be added directly to vop node in
rk3588-base.dtsi, along with the HDMI0 related one, because HDMI1 is an
optional feature and its PHY node belongs to a separate (extra) DT file.

Therefore, add the HDMI1 PHY PLL clock source to VOP2 by overwriting its
clocks & clock-names properties in the extra DT file.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi
index 97e55990e0524ed447d182cef416190822bf67be..1df8845bdc264b07601add3747b273f92091e7fa 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi
@@ -542,3 +542,24 @@ pcie30phy: phy@...80000 {
 		status = "disabled";
 	};
 };
+
+&vop {
+	clocks = <&cru ACLK_VOP>,
+		 <&cru HCLK_VOP>,
+		 <&cru DCLK_VOP0>,
+		 <&cru DCLK_VOP1>,
+		 <&cru DCLK_VOP2>,
+		 <&cru DCLK_VOP3>,
+		 <&cru PCLK_VOP_ROOT>,
+		 <&hdptxphy0>,
+		 <&hdptxphy1>;
+	clock-names = "aclk",
+		      "hclk",
+		      "dclk_vp0",
+		      "dclk_vp1",
+		      "dclk_vp2",
+		      "dclk_vp3",
+		      "pclk_vop",
+		      "pll_hdmiphy0",
+		      "pll_hdmiphy1";
+};

-- 
2.48.1