[RFC v3 07/18] dt-bindings: reset: Add T-HEAD TH1520 SoC Reset Controller

Michal Wilczynski
2025-01-20T17:23:30Z

Add a YAML schema for the T-HEAD TH1520 SoC reset controller. This
controller manages resets for subsystems such as the GPU within the
TH1520 SoC.

Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
---
.../bindings/reset/thead,th1520-reset.yaml | 44 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml

diff --git a/Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml b/Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml
new file mode 100644
index 000000000000..c15a80e00935
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/thead,th1520-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: T-HEAD TH1520 SoC Reset Controller
+
+description:
+ The T-HEAD TH1520 reset controller is a hardware block that asserts/deasserts
+ resets for SoC subsystems.
+
+maintainers:
+ - Michal Wilczynski <m.wilczynski@samsung.com>
+
+properties:
+ compatible:
+ enum:
+ - thead,th1520-reset
+
+ reg:
+ maxItems: 1
+
+ "#reset-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ rst: reset-controller@ffef528000 {
+ compatible = "thead,th1520-reset";
+ reg = <0xff 0xef528000 0x0 0x1000>;
+ #reset-cells = <0>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 363bb3471a33..1b6e894500ef 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20189,6 +20189,7 @@ F: Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml
F: Documentation/devicetree/bindings/mailbox/thead,th1520-mbox.yaml
F: Documentation/devicetree/bindings/net/thead,th1520-gmac.yaml
F: Documentation/devicetree/bindings/pinctrl/thead,th1520-pinctrl.yaml
+F: Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml
F: arch/riscv/boot/dts/thead/
F: drivers/clk/thead/clk-th1520-ap.c
F: drivers/firmware/thead,th1520-aon.c
--
2.34.1