linux-kernel - [PATCH 3/3] ARM: dts: meson8b: add the canvas module

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Message-Id: <20190413171532.25967-4-martin.blumenstingl@googlemail.com>
Date:   Sat, 13 Apr 2019 19:15:32 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     linux-amlogic@...ts.infradead.org, khilman@...libre.com
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        mjourdan@...libre.com,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH 3/3] ARM: dts: meson8b: add the canvas module

Add the canvas module to Meson8b because it's required for the VPU
(video output) and video decoders.

The canvas module is located inside the "DMC bus" (where also some of
the memory controller registers are located). The "DMC bus" itself is
part of the so-called "MMC bus".

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
 arch/arm/boot/dts/meson8b.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index 800cd65fc50a..f4e832638e9c 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -205,6 +205,27 @@
 		};
 	};
 
+	mmcbus: bus@...00000 {
+		compatible = "simple-bus";
+		reg = <0xc8000000 0x8000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0xc8000000 0x8000>;
+
+		dmcbus: bus@...0 {
+			compatible = "simple-bus";
+			reg = <0x6000 0x400>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x6000 0x400>;
+
+			canvas: video-lut@48 {
+				compatible = "amlogic,canvas";
+				reg = <0x48 0x14>;
+			};
+		};
+	};
+
 	apb: bus@...00000 {
 		compatible = "simple-bus";
 		reg = <0xd0000000 0x200000>;
-- 
2.21.0