diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt deleted file mode 100644 index a73cbeb0f309..000000000000 --- a/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.txt +++ /dev/null @@ -1,123 +0,0 @@ -Broadcom iProc GPIO/PINCONF Controller - -Required properties: - -- compatible: - "brcm,iproc-gpio" for the generic iProc based GPIO controller IP that - supports full-featured pinctrl and GPIO functions used in various iProc - based SoCs - - May contain an SoC-specific compatibility string to accommodate any - SoC-specific features - - "brcm,cygnus-ccm-gpio", "brcm,cygnus-asiu-gpio", or - "brcm,cygnus-crmu-gpio" for Cygnus SoCs - - "brcm,iproc-nsp-gpio" for the iProc NSP SoC that has drive strength support - disabled - - "brcm,iproc-stingray-gpio" for the iProc Stingray SoC that has the general - pinctrl support completely disabled in this IP block. In Stingray, a - different IP block is used to handle pinctrl related functions - -- reg: - Define the base and range of the I/O address space that contains SoC -GPIO/PINCONF controller registers - -- ngpios: - Total number of in-use slots in GPIO controller - -- #gpio-cells: - Must be two. The first cell is the GPIO pin number (within the -controller's pin space) and the second cell is used for the following: - bit[0]: polarity (0 for active high and 1 for active low) - -- gpio-controller: - Specifies that the node is a GPIO controller - -Optional properties: - -- interrupts: - Interrupt ID - -- interrupt-controller: - Specifies that the node is an interrupt controller - -- gpio-ranges: - Specifies the mapping between gpio controller and pin-controllers pins. - This requires 4 fields in cells defined as - - 1. Phandle of pin-controller. - 2. GPIO base pin offset. - 3 Pin-control base pin offset. - 4. number of gpio pins which are linearly mapped from pin base. - -Supported generic PINCONF properties in child nodes: - -- pins: - The list of pins (within the controller's own pin space) that properties -in the node apply to. Pin names are "gpio-" - -- bias-disable: - Disable pin bias - -- bias-pull-up: - Enable internal pull up resistor - -- bias-pull-down: - Enable internal pull down resistor - -- drive-strength: - Valid drive strength values include 2, 4, 6, 8, 10, 12, 14, 16 (mA) - -Example: - gpio_ccm: gpio@1800a000 { - compatible = "brcm,cygnus-ccm-gpio"; - reg = <0x1800a000 0x50>, - <0x0301d164 0x20>; - ngpios = <24>; - #gpio-cells = <2>; - gpio-controller; - interrupts = ; - interrupt-controller; - - touch_pins: touch_pins { - pwr: pwr { - pins = "gpio-0"; - drive-strength = <16>; - }; - - event: event { - pins = "gpio-1"; - bias-pull-up; - }; - }; - }; - - gpio_asiu: gpio@180a5000 { - compatible = "brcm,cygnus-asiu-gpio"; - reg = <0x180a5000 0x668>; - ngpios = <146>; - #gpio-cells = <2>; - gpio-controller; - interrupts = ; - interrupt-controller; - gpio-ranges = <&pinctrl 0 42 1>, - <&pinctrl 1 44 3>; - }; - - /* - * Touchscreen that uses the CCM GPIO 0 and 1 - */ - tsc { - ... - ... - gpio-pwr = <&gpio_ccm 0 0>; - gpio-event = <&gpio_ccm 1 0>; - }; - - /* Bluetooth that uses the ASIU GPIO 5, with polarity inverted */ - bluetooth { - ... - ... - bcm,rfkill-bank-sel = <&gpio_asiu 5 1> - } diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.yaml b/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.yaml new file mode 100644 index 000000000000..a0ed308b7fc8 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/brcm,iproc-gpio.yaml @@ -0,0 +1,111 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/brcm,iproc-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom iProc GPIO/PINCONF Controller + +maintainers: + - Ray Jui + - Scott Branden + +properties: + compatible: + oneOf: + - enum: + - brcm,cygnus-asiu-gpio + - brcm,cygnus-ccm-gpio + - brcm,cygnus-crmu-gpio + - brcm,iproc-gpio + - brcm,iproc-stingray-gpio + - items: + - enum: + - brcm,iproc-hr2-gpio + - brcm,iproc-nsp-gpio + - const: brcm,iproc-gpio + + reg: + minItems: 1 + items: + - description: GPIO Bank registers + - description: IO Ctrl registers + + "#gpio-cells": + const: 2 + + gpio-controller: true + + gpio-ranges: true + + ngpios: true + + "#interrupt-cells": + const: 2 + + interrupts: + maxItems: 1 + + interrupt-controller: true + +required: + - compatible + - reg + - "#gpio-cells" + - gpio-controller + - ngpios + +patternProperties: + '-pins$': + type: object + additionalProperties: + description: Pin configuration child nodes. + allOf: + - $ref: pincfg-node.yaml# + - $ref: pinmux-node.yaml# + additionalProperties: false + + properties: + pins: + items: + pattern: '^gpio-' + + bias-disable: true + bias-pull-up: true + bias-pull-down: true + + drive-strength: + enum: [ 2, 4, 6, 8, 10, 12, 14, 16 ] + + required: + - pins + +additionalProperties: false + +examples: + - | + #include + + gpio@1800a000 { + compatible = "brcm,cygnus-ccm-gpio"; + reg = <0x1800a000 0x50>, + <0x0301d164 0x20>; + ngpios = <24>; + #gpio-cells = <2>; + gpio-controller; + #interrupt-cells = <2>; + interrupts = ; + interrupt-controller; + + touch-pins { + pwr { + pins = "gpio-0"; + drive-strength = <16>; + }; + + event { + pins = "gpio-1"; + bias-pull-up; + }; + }; + };