linux-kernel - [PATCH] MIPS: ingenic: JZ4725B: Add IPU node

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Message-Id: <20200725174307.99327-1-paul@crapouillou.net>
Date:   Sat, 25 Jul 2020 19:43:07 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        od@...c.me, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH] MIPS: ingenic: JZ4725B: Add IPU node

Add a devicetree node for the Image Processing Unit (IPU) found in the
JZ4725B. Connect it with graph nodes to the LCD node. The LCD driver
will expect the IPU node to be accessed through graph port #8, as stated
in the bindings documentation.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---

Notes:
    Binding documentation was merged in the DRM tree (drm-misc-next branch).
    See https://cgit.freedesktop.org/drm/drm-misc/plain/Documentation/devicetree/bindings/display/ingenic,ipu.yaml

 arch/mips/boot/dts/ingenic/jz4725b.dtsi | 30 +++++++++++++++++++++++++
 arch/mips/boot/dts/ingenic/rs90.dts     |  6 ++++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/arch/mips/boot/dts/ingenic/jz4725b.dtsi b/arch/mips/boot/dts/ingenic/jz4725b.dtsi
index 89402a15f049..a8fca560878d 100644
--- a/arch/mips/boot/dts/ingenic/jz4725b.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4725b.dtsi
@@ -314,6 +314,36 @@ lcd: lcd-controller@...50000 {
 
 		clocks = <&cgu JZ4725B_CLK_LCD>;
 		clock-names = "lcd_pclk";
+
+		lcd_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@8 {
+				reg = <8>;
+
+				ipu_output: endpoint {
+					remote-endpoint = <&ipu_input>;
+				};
+			};
+		};
+	};
+
+	ipu: ipu@...80000 {
+		compatible = "ingenic,jz4725b-ipu";
+		reg = <0x13080000 0x64>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <30>;
+
+		clocks = <&cgu JZ4725B_CLK_IPU>;
+		clock-names = "ipu";
+
+		port {
+			ipu_input: endpoint {
+				remote-endpoint = <&ipu_output>;
+			};
+		};
 	};
 
 	bch: ecc-controller@...d0000 {
diff --git a/arch/mips/boot/dts/ingenic/rs90.dts b/arch/mips/boot/dts/ingenic/rs90.dts
index 246f97efe5ef..4eb1edbfc155 100644
--- a/arch/mips/boot/dts/ingenic/rs90.dts
+++ b/arch/mips/boot/dts/ingenic/rs90.dts
@@ -302,8 +302,12 @@ &tcu {
 &lcd {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pins_lcd>;
+};
+
+&lcd_ports {
+	port@0 {
+		reg = <0>;
 
-	port {
 		panel_output: endpoint {
 			remote-endpoint = <&panel_input>;
 		};
-- 
2.27.0