Add the device tree bindings for the Realtek DHC(Digital Home Center)
RTD SoCs GPIO controllers.
Signed-off-by: Tzuyi Chang <tychang@xxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
v4 to v5 change:
No change.
v3 to v4 change:
1. Arrange the compatible list in alphanumerical order.
v2 to v3 change:
1. Remove generic compatible and use SoC-specific compatible instead.
v1 to v2 change:
1. Add description for DHC RTD SoCs.
2. Revise the compatible names.
3. Add descriptions for reg and interrupts properties.
---
.../bindings/gpio/realtek,rtd-gpio.yaml | 69 +++++++++++++++++++
1 file changed, 69 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml
diff --git a/Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml b/Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml
new file mode 100644
index 000000000000..dd768db37a98
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2023 Realtek Semiconductor Corporation
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/realtek,rtd-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Realtek DHC GPIO controller
+
+maintainers:
+ - Tzuyi Chang <tychang@xxxxxxxxxxx>
+
+description:
+ The GPIO controller is designed for the Realtek DHC (Digital Home Center)
+ RTD series SoC family, which are high-definition media processor SoCs.
+
+properties:
+ compatible:
+ enum:
+ - realtek,rtd1295-misc-gpio
+ - realtek,rtd1295-iso-gpio
+ - realtek,rtd1315e-iso-gpio
+ - realtek,rtd1319-iso-gpio
+ - realtek,rtd1319d-iso-gpio
+ - realtek,rtd1395-iso-gpio
+ - realtek,rtd1619-iso-gpio
+ - realtek,rtd1619b-iso-gpio
+
+ reg:
+ items:
+ - description: GPIO controller registers
+ - description: GPIO interrupt registers
+
+ interrupts:
+ items:
+ - description: Interrupt number of the assert GPIO interrupt, which is
+ triggered when there is a rising edge.
+ - description: Interrupt number of the deassert GPIO interrupt, which is
+ triggered when there is a falling edge.
+
+ gpio-ranges: true
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - gpio-ranges
+ - gpio-controller
+ - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ gpio@100 {
+ compatible = "realtek,rtd1319d-iso-gpio";
+ reg = <0x100 0x100>,
+ <0x0 0xb0>;
+ interrupt-parent = <&iso_irq_mux>;
+ interrupts = <19>, <20>;
+ gpio-ranges = <&pinctrl 0 0 82>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
--
2.43.0
