From fb9da17bd26552f48cda4f2f658379e7f5860691 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Wed, 24 Mar 2021 09:19:04 +0100 Subject: [PATCH 03/22] dt-bindings: improve BCM6345 GPIO binding documentation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Convert existing BCM6345 GPIO binding documentation to YAML and add binding documentation for the GPIO controller found in BCM6318, BCM6328, BCM6358, BCM6362, BCM6368 and BCM63268 SoCs. Co-developed-by: Jonas Gorski Signed-off-by: Jonas Gorski Signed-off-by: Álvaro Fernández Rojas Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20210324081923.20379-4-noltari@gmail.com Signed-off-by: Linus Walleij --- .../bindings/gpio/brcm,bcm6345-gpio.txt | 46 ---------- .../bindings/gpio/brcm,bcm6345-gpio.yaml | 86 +++++++++++++++++++ 2 files changed, 86 insertions(+), 46 deletions(-) delete mode 100644 Documentation/devicetree/bindings/gpio/brcm,bcm6345-gpio.txt create mode 100644 Documentation/devicetree/bindings/gpio/brcm,bcm6345-gpio.yaml --- a/Documentation/devicetree/bindings/gpio/brcm,bcm6345-gpio.txt +++ /dev/null @@ -1,46 +0,0 @@ -Bindings for the Broadcom's brcm,bcm6345-gpio memory-mapped GPIO controllers. - -These bindings can be used on any BCM63xx SoC. However, BCM6338 and BCM6345 -are the only ones which don't need a pinctrl driver. -BCM6338 have 8-bit data and dirout registers, where GPIO state can be read -and/or written, and the direction changed from input to output. -BCM6345 have 16-bit data and dirout registers, where GPIO state can be read -and/or written, and the direction changed from input to output. - -Required properties: - - compatible: should be "brcm,bcm6345-gpio" - - reg-names: must contain - "dat" - data register - "dirout" - direction (output) register - - reg: address + size pairs describing the GPIO register sets; - order must correspond with the order of entries in reg-names - - #gpio-cells: must be set to 2. The first cell is the pin number and - the second cell is used to specify the gpio polarity: - 0 = active high - 1 = active low - - gpio-controller: Marks the device node as a gpio controller. - -Optional properties: - - native-endian: use native endian memory. - -Examples: - - BCM6338: - gpio: gpio-controller@fffe0407 { - compatible = "brcm,bcm6345-gpio"; - reg-names = "dirout", "dat"; - reg = <0xfffe0407 1>, <0xfffe040f 1>; - - #gpio-cells = <2>; - gpio-controller; - }; - - - BCM6345: - gpio: gpio-controller@fffe0406 { - compatible = "brcm,bcm6345-gpio"; - reg-names = "dirout", "dat"; - reg = <0xfffe0406 2>, <0xfffe040a 2>; - native-endian; - - #gpio-cells = <2>; - gpio-controller; - }; --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/brcm,bcm6345-gpio.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/brcm,bcm6345-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM6345 GPIO controller + +maintainers: + - Álvaro Fernández Rojas + - Jonas Gorski + +description: |+ + Bindings for Broadcom's BCM63xx memory-mapped GPIO controllers. + + These bindings can be used on any BCM63xx SoC. However, BCM6338 and BCM6345 + are the only ones which don't need a pinctrl driver. + + BCM6338 have 8-bit data and dirout registers, where GPIO state can be read + and/or written, and the direction changed from input to output. + BCM6345 have 16-bit data and dirout registers, where GPIO state can be read + and/or written, and the direction changed from input to output. + BCM6318, BCM6328, BCM6358, BCM6362, BCM6368 and BCM63268 have 32-bit data + and dirout registers, where GPIO state can be read and/or written, and the + direction changed from input to output. + +properties: + compatible: + enum: + - brcm,bcm6318-gpio + - brcm,bcm6328-gpio + - brcm,bcm6345-gpio + - brcm,bcm6358-gpio + - brcm,bcm6362-gpio + - brcm,bcm6368-gpio + - brcm,bcm63268-gpio + + gpio-controller: true + + "#gpio-cells": + const: 2 + + gpio-ranges: + maxItems: 1 + + native-endian: true + + reg: + maxItems: 2 + + reg-names: + items: + - const: dirout + - const: dat + +required: + - compatible + - reg + - reg-names + - gpio-controller + - '#gpio-cells' + +additionalProperties: false + +examples: + - | + gpio@fffe0406 { + compatible = "brcm,bcm6345-gpio"; + reg-names = "dirout", "dat"; + reg = <0xfffe0406 2>, <0xfffe040a 2>; + native-endian; + + gpio-controller; + #gpio-cells = <2>; + }; + + - | + gpio@0 { + compatible = "brcm,bcm63268-gpio"; + reg-names = "dirout", "dat"; + reg = <0x0 0x8>, <0x8 0x8>; + + gpio-controller; + gpio-ranges = <&pinctrl 0 0 52>; + #gpio-cells = <2>; + };