linux-kernel - [PATCH v3 1/7] arm64: dts: mediatek: add mmsys support for mt8365 SoC

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Message-Id: <20230207-iommu-support-v3-1-97e19ad4e85d@baylibre.com>
Date:   Fri, 07 Apr 2023 11:34:12 +0200
From:   Alexandre Mergnat <amergnat@...libre.com>
To:     Yong Wu <yong.wu@...iatek.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Alexandre Mergnat <amergnat@...libre.com>
Subject: [PATCH v3 1/7] arm64: dts: mediatek: add mmsys support for mt8365
 SoC

Multimedia subsystem (MMsys) contains multimedia controller, Multimedia
Data Path v2.0 (MDP 2.0) and Display (DISP). The multimedia controller
includes bus fabric control, Smart Memory Interface (SMI) control,
memory access second-level arbiter, and multimedia configuration. It
plays the key role in handling different handshakings between infra
subsystem, video subsystem, image subsystem and G3D subsystem.

For more detail, ask Mediatek for the MT8365 AIoT application processor
functional specification.

Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
---
 arch/arm64/boot/dts/mediatek/mt8365.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
index b5f5c77f7f84..db9ab538c34d 100644
--- a/arch/arm64/boot/dts/mediatek/mt8365.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
@@ -592,6 +592,12 @@ u2port1: usb-phy@...0 {
 				#phy-cells = <1>;
 			};
 		};
+
+		mmsys: syscon@...00000 {
+			compatible = "mediatek,mt8365-mmsys", "syscon";
+			reg = <0 0x14000000 0 0x1000>;
+			#clock-cells = <1>;
+		};
 	};
 
 	timer {

-- 
2.25.1