Commit f7176724 authored by Animesh Agarwal's avatar Animesh Agarwal Committed by Bartosz Golaszewski

dt-bindings: gpio: nxp,lpc3220-gpio: Convert to dtschema

Convert the NXP LPC3220 SoC GPIO controller bindings to DT schema format.
Signed-off-by: default avatarAnimesh Agarwal <animeshagarwal28@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240731054442.109732-1-animeshagarwal28@gmail.comSigned-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent c206d6be
NXP LPC32xx SoC GPIO controller
Required properties:
- compatible: must be "nxp,lpc3220-gpio"
- reg: Physical base address and length of the controller's registers.
- gpio-controller: Marks the device node as a GPIO controller.
- #gpio-cells: Should be 3:
1) bank:
0: GPIO P0
1: GPIO P1
2: GPIO P2
3: GPIO P3
4: GPI P3
5: GPO P3
2) pin number
3) optional parameters:
- bit 0 specifies polarity (0 for normal, 1 for inverted)
- reg: Index of the GPIO group
Example:
gpio: gpio@40028000 {
compatible = "nxp,lpc3220-gpio";
reg = <0x40028000 0x1000>;
gpio-controller;
#gpio-cells = <3>; /* bank, pin, flags */
};
leds {
compatible = "gpio-leds";
led0 {
gpios = <&gpio 5 1 1>; /* GPO_P3 1, active low */
linux,default-trigger = "heartbeat";
default-state = "off";
};
led1 {
gpios = <&gpio 5 14 1>; /* GPO_P3 14, active low */
linux,default-trigger = "timer";
default-state = "off";
};
};
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/nxp,lpc3220-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP LPC3220 SoC GPIO controller
maintainers:
- Animesh Agarwal <animeshagarwal28@gmail.com>
properties:
compatible:
const: nxp,lpc3220-gpio
reg:
maxItems: 1
gpio-controller: true
'#gpio-cells':
const: 3
description: |
1) bank:
0: GPIO P0
1: GPIO P1
2: GPIO P2
3: GPIO P3
4: GPI P3
5: GPO P3
2) pin number
3) flags:
- bit 0 specifies polarity (0 for normal, 1 for inverted)
required:
- compatible
- reg
- gpio-controller
- '#gpio-cells'
additionalProperties: false
examples:
- |
gpio@40028000 {
compatible = "nxp,lpc3220-gpio";
reg = <0x40028000 0x1000>;
gpio-controller;
#gpio-cells = <3>; /* bank, pin, flags */
};
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