Re: [PATCH 1/3] dt-bindings: reset: Add Apple SoC CIO reset

From: Sven Peter

Date: Tue Aug 11 2026 - 13:09:28 EST




On 8/10/26 18:02, Conor Dooley wrote:
On Sun, Aug 09, 2026 at 02:16:02PM +0200, Sven Peter wrote:
The CIO (USB4/Thunderbolt) blocks on Apple Silicon SoCs have a reset
inside the power manager that has to be deasserted before their
co-processor can be booted. On t8103 each port comes with a dedicated
register page, represented as a standalone node. On t600x a single
register shared by all ports of a die is located in the middle of the
PMGR MMIO region instead, represented as a sub-node of the PMGR syscon.

Signed-off-by: Sven Peter <sven@xxxxxxxxxx>
Fix the sashiko complaint and then
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
pw-bot: not-applicable

+ - |
+ power-management@28e080000 {
+ compatible = "apple,t6000-pmgr", "apple,pmgr", "syscon", "simple-mfd";
+ reg = <0x8e080000 0x1c000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ reset-controller@1a034 {
+ compatible = "apple,t6000-cio-reset";
+ reg = <0x1a034 0x4>;
+ #reset-cells = <1>;
+ };
+ };
Probably the fix is actually moving this to the parent device bnding.

Thanks for the review, I've moved the example to the parent binding where I just had to add the reset-controller node itself and could drop all the stuff around it.


Thanks,


Sven