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 IoT application processor
functional specification.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230207-iommu-support-v6-1-24453c8625b3@baylibre.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
index 413496c9206954588da59718e121a948b0b2ed8a..bcabc2b89a94f0074602848e2b08ff11c64682fb 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8365.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
@@ -603,6 +603,12 @@
                                #phy-cells = <1>;
                        };
                };
+
+               mmsys: syscon@14000000 {
+                       compatible = "mediatek,mt8365-mmsys", "syscon";
+                       reg = <0 0x14000000 0 0x1000>;
+                       #clock-cells = <1>;
+               };
        };
 
        timer {