Thread (9 messages) 9 messages, 1 author, 2025-08-18
STALE342d REVIEWED: 3 (2M)

[PATCH v13 5/7] dt-bindings: pwm: thead: Add T-HEAD TH1520 PWM controller

From: Michal Wilczynski <m.wilczynski@samsung.com>
Date: 2025-08-06 07:43:01
Also in: linux-pwm, linux-riscv, lkml, rust-for-linux
Subsystem: open firmware and flattened device tree bindings, pwm subsystem, risc-v thead soc support, the rest · Maintainers: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Uwe Kleine-König, Drew Fustini, Guo Ren, Fu Wei, Linus Torvalds

Add the Device Tree binding documentation for the T-HEAD
TH1520 SoC PWM controller.

Reviewed-by: Krzysztof Kozlowski <redacted>
Tested-by: Drew Fustini <fustini@kernel.org>
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
---
 .../devicetree/bindings/pwm/thead,th1520-pwm.yaml  | 48 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 49 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml b/Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..855aec59ac53c430adc849271235686e87b10e6c
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/thead,th1520-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: T-HEAD TH1520 PWM controller
+
+maintainers:
+  - Michal Wilczynski <m.wilczynski@samsung.com>
+
+allOf:
+  - $ref: pwm.yaml#
+
+properties:
+  compatible:
+    const: thead,th1520-pwm
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: SoC PWM clock
+
+  "#pwm-cells":
+    const: 3
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/thead,th1520-clk-ap.h>
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      pwm@ffec01c000 {
+          compatible = "thead,th1520-pwm";
+          reg = <0xff 0xec01c000 0x0 0x4000>;
+          clocks = <&clk CLK_PWM>;
+          #pwm-cells = <3>;
+      };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index e6fe51161ea9b2646d252315dacfe9f17420192d..17d44567fe479c5db697c8f7604b423a95a341d0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21708,6 +21708,7 @@ F:	Documentation/devicetree/bindings/firmware/thead,th1520-aon.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/pwm/thead,th1520-pwm.yaml
 F:	Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml
 F:	arch/riscv/boot/dts/thead/
 F:	drivers/clk/thead/clk-th1520-ap.c
-- 
2.34.1
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