From 337049890b8cbbb4fb527c58976ea19f4dc747a0 Mon Sep 17 00:00:00 2001 From: Manikandan Muralidharan Date: Tue, 9 Jul 2024 14:53:53 +0530 Subject: [PATCH] dt-bindings: gpio: convert Atmel GPIO to json-schema Convert the Atmel GPIO controller binding document to DT schema format using json-schema. The at91 pinctrl driver uses "atmel,at91rm9200-gpio" compatible string to find the number of active GPIO banks and identify the pinmux nodes. "atmel,at91sam9x5-gpio" and "microchip,sam9x60-gpio" have additional registers to handle drive-strength, slew-rate, pull-down to drive the pinmux configs. The new compatible string "microchip,sam9x7-gpio" is added. Signed-off-by: Manikandan Muralidharan Acked-by: Linus Walleij Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20240709092354.191643-5-manikandan.m@microchip.com Signed-off-by: Bartosz Golaszewski --- .../bindings/gpio/atmel,at91rm9200-gpio.yaml | 81 +++++++++++++++++++ .../devicetree/bindings/gpio/gpio_atmel.txt | 31 ------- 2 files changed, 81 insertions(+), 31 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml delete mode 100644 Documentation/devicetree/bindings/gpio/gpio_atmel.txt diff --git a/Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml b/Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml new file mode 100644 index 000000000000..3dd70933ed8e --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/atmel,at91rm9200-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip GPIO controller (PIO) + +maintainers: + - Manikandan Muralidharan + +properties: + compatible: + oneOf: + - items: + - enum: + - atmel,at91sam9x5-gpio + - microchip,sam9x60-gpio + - const: atmel,at91rm9200-gpio + - items: + - enum: + - microchip,sam9x7-gpio + - const: microchip,sam9x60-gpio + - const: atmel,at91rm9200-gpio + - items: + - const: atmel,at91rm9200-gpio + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + gpio-controller: true + gpio-line-names: true + + "#gpio-cells": + const: 2 + + clocks: + maxItems: 1 + + "#gpio-lines": + description: + Number of gpio, 32 by default if absent + maxItems: 1 + default: 32 + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - "#interrupt-cells" + - gpio-controller + - "#gpio-cells" + - clocks + +additionalProperties: false + +examples: + - | + #include + #include + + gpio@fffff400 { + compatible = "atmel,at91rm9200-gpio"; + reg = <0xfffff400 0x200>; + interrupts = <2 IRQ_TYPE_LEVEL_HIGH 1>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&pmc PMC_TYPE_PERIPHERAL 2>; + }; +... diff --git a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt deleted file mode 100644 index 29416f9c3220..000000000000 --- a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt +++ /dev/null @@ -1,31 +0,0 @@ -* Atmel GPIO controller (PIO) - -Required properties: -- compatible: "atmel,-gpio", where is at91rm9200 or at91sam9x5. -- reg: Should contain GPIO controller registers location and length -- interrupts: Should be the port interrupt shared by all the pins. -- #gpio-cells: Should be two. The first cell is the pin number and - the second cell is used to specify optional parameters to declare if the GPIO - is active high or low. See gpio.txt. -- gpio-controller: Marks the device node as a GPIO controller. -- interrupt-controller: Marks the device node as an interrupt controller. -- #interrupt-cells: Should be two. The first cell is the pin number and the - second cell is used to specify irq type flags, see the two cell description - in interrupt-controller/interrupts.txt for details. - -optional properties: -- #gpio-lines: Number of gpio if absent 32. - - -Example: - pioA: gpio@fffff200 { - compatible = "atmel,at91rm9200-gpio"; - reg = <0xfffff200 0x100>; - interrupts = <2 4>; - #gpio-cells = <2>; - gpio-controller; - #gpio-lines = <19>; - interrupt-controller; - #interrupt-cells = <2>; - }; - -- 2.25.1