[PATCH v11 07/14] dt-bindings: power: rockchip: allow resets in a power domain node
From: Jiaxing Hu <hidden>
Date: 2026-08-31 08:21:19
Also in:
dri-devel, linux-devicetree, linux-iommu, linux-pm, linux-rockchip, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Some domains do not come up in a usable state on their own and need their resets cycled once power is on. The RK3576 NPU domains are one case: without it the first access after power-on takes an async SError. Signed-off-by: Jiaxing Hu <redacted> Acked-by: Conor Dooley <conor.dooley@microchip.com> --- .../bindings/power/rockchip,power-controller.yaml | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
index b41db576f..83741f048 100644
--- a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
+++ b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml@@ -136,6 +136,13 @@ $defs: A number of phandles to clocks that need to be enabled while power domain switches state. + resets: + maxItems: 1 + description: + A phandle to a reset that needs to be cycled once the power domain has + been switched on, for domains whose logic does not come up in a usable + state by itself. + domain-supply: description: domain regulator supply.
@@ -216,6 +223,7 @@ examples: reg = <RK3399_PD_IEP>; clocks = <&cru ACLK_IEP>, <&cru HCLK_IEP>; + resets = <&cru SRST_A_IEP>; pm_qos = <&qos_iep>; #power-domain-cells = <0>; };
--
2.43.0