Re: [PATCH v2 6/6] arm64: dts: renesas: r8a78000: Add MDLC nodes
From: Marek Vasut
Date: Thu Jul 09 2026 - 07:53:27 EST
On 7/9/26 12:24 PM, Geert Uytterhoeven wrote:
Hello Geert,
Do you think those MDLC instances might be on different sub-busses and we might need to model those busses using simple-bus in DT ?+ mdlc_ddr7: system-controller@e8380000 {
+ compatible = "renesas,r8a78000-mdlc";
+ reg = <0 0xe8380000 0 0x1000>;
+ #power-domain-cells = <2>;
+ #reset-cells = <1>;
+ bootph-all;
+ };
+
+ mdlc_hscn: system-controller@c9c90000 {
+ compatible = "renesas,r8a78000-mdlc";
+ reg = <0 0xc9c90000 0 0x1000>;
+ #power-domain-cells = <2>;
+ #reset-cells = <1>;
+ bootph-all;
+ };
+
+ mdlc_rt: system-controller@19440000 {
Please keep the list sorted (0x19440000 should be before 0xc9c90000).
These are sorted by instance (Module Number), as per Table 18.1
("Target Module hierarchy of Module Power Gating and Module Standby")
in the documentation. This order is indeed a bit odd, as it differs
from both alphabetical label order (unlike e.g. hscifN), and numerical
unit address order...
Any guidance?