Re: [PATCH] arm64: dts: mediatek: Add smi_common node for MT8183

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On 01/10/2020 18:28, Enric Balletbo i Serra wrote:
The SMI (Smart Multimedia Interface) Common is a bridge between the m4u
(Multimedia Memory Management Unit) and the Multimedia HW. This block is
needed to support different multimedia features, like display, video
decode, and camera. Also is needed to control the power domains of such
HW blocks.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
---

  arch/arm64/boot/dts/mediatek/mt8183.dtsi | 10 ++++++++++
  1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index c2fd141afcf6..9082bc65e15e 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -916,6 +916,16 @@ mmsys: syscon@14000000 {
  			#clock-cells = <1>;
  		};
+ smi_common: smi@14019000 {
+			compatible = "mediatek,mt8183-smi-common", "syscon";
+			reg = <0 0x14019000 0 0x1000>;
+			clocks = <&mmsys CLK_MM_SMI_COMMON>,
+				 <&mmsys CLK_MM_SMI_COMMON>,
+				 <&mmsys CLK_MM_GALS_COMM0>,
+				 <&mmsys CLK_MM_GALS_COMM1>;
+			clock-names = "apb", "smi", "gals0", "gals1";
+		};
+

Having a look at the bindings description, it states that the power-domains phandle is a required property.
So I suppose you have to base this on the power domains series.

Regards,
Matthias

  		imgsys: syscon@15020000 {
  			compatible = "mediatek,mt8183-imgsys", "syscon";
  			reg = <0 0x15020000 0 0x1000>;




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