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dt-bindings: pinctrl: convert semtech,sx150xq bindings to dt-schema
This converts the Semtech SX150Xq bindings to dt-schemas, add necessary bindings documentation to cover all differences between HW variants and current bindings usage. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20221005-mdm9615-sx1509q-yaml-v3-0-e8b349eb1900@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Neil Armstrong
committed by
Linus Walleij
Linus Walleij
parent
06de519345
commit
29c10bcec5
@@ -1,72 +0,0 @@
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SEMTECH SX150x GPIO expander bindings
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Please refer to pinctrl-bindings.txt, ../gpio/gpio.txt, and
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../interrupt-controller/interrupts.txt for generic information regarding
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pin controller, GPIO, and interrupt bindings.
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Required properties:
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- compatible: should be one of :
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"semtech,sx1501q",
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"semtech,sx1502q",
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"semtech,sx1503q",
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"semtech,sx1504q",
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"semtech,sx1505q",
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"semtech,sx1506q",
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"semtech,sx1507q",
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"semtech,sx1508q",
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"semtech,sx1509q".
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- reg: The I2C slave address for this device.
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- #gpio-cells: Should be 2. The first cell is the GPIO number and the
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second cell is used to specify optional parameters:
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bit 0: polarity (0: normal, 1: inverted)
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- gpio-controller: Marks the device as a GPIO controller.
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Optional properties :
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- interrupts: Interrupt specifier for the controllers interrupt.
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- interrupt-controller: Marks the device as a interrupt controller.
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- semtech,probe-reset: Will trigger a reset of the GPIO expander on probe,
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only for sx1507q, sx1508q and sx1509q
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The GPIO expander can optionally be used as an interrupt controller, in
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which case it uses the default two cell specifier.
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Required properties for pin configuration sub-nodes:
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- pins: List of pins to which the configuration applies.
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Optional properties for pin configuration sub-nodes:
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----------------------------------------------------
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- bias-disable: disable any pin bias, except the OSCIO pin
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- bias-pull-up: pull up the pin, except the OSCIO pin
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- bias-pull-down: pull down the pin, except the OSCIO pin
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- bias-pull-pin-default: use pin-default pull state, except the OSCIO pin
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- drive-push-pull: drive actively high and low
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- drive-open-drain: drive with open drain only for sx1507q, sx1508q and sx1509q and except the OSCIO pin
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- output-low: set the pin to output mode with low level
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- output-high: set the pin to output mode with high level
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Example:
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i2c0gpio-expander@20{
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#gpio-cells = <2>;
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#interrupt-cells = <2>;
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compatible = "semtech,sx1506q";
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reg = <0x20>;
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interrupt-parent = <&gpio_1>;
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interrupts = <16 0>;
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gpio-controller;
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interrupt-controller;
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pinctrl-names = "default";
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pinctrl-0 = <&gpio1_cfg_pins>;
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gpio1_cfg_pins: gpio1-cfg {
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pins = "gpio1";
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bias-pull-up;
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};
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};
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208
Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml
Normal file
208
Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml
Normal file
@@ -0,0 +1,208 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright 2022 Linaro Ltd.
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pinctrl/semtech,sx1501q.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Semtech SX150x GPIO expander
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maintainers:
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- Neil Armstrong <neil.armstrong@linaro.org>
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properties:
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compatible:
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enum:
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- semtech,sx1501q
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- semtech,sx1502q
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- semtech,sx1503q
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- semtech,sx1504q
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- semtech,sx1505q
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- semtech,sx1506q
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- semtech,sx1507q
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- semtech,sx1508q
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- semtech,sx1509q
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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'#interrupt-cells':
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const: 2
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interrupt-controller: true
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'#gpio-cells':
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const: 2
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gpio-controller: true
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semtech,probe-reset:
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description: Will trigger a reset of the GPIO expander on probe
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type: boolean
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patternProperties:
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'-cfg$':
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type: object
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properties:
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pins: true
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bias-disable: true
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bias-pull-up: true
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bias-pull-down: true
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bias-pull-pin-default: true
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drive-push-pull: true
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output-low: true
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output-high: true
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drive-open-drain: true
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required:
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- pins
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allOf:
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- $ref: "pincfg-node.yaml#"
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- $ref: "pinmux-node.yaml#"
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- if:
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properties:
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pins:
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contains:
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const: oscio
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then:
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properties:
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bias-disable: false
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bias-pull-up: false
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bias-pull-down: false
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bias-pull-pin-default: false
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drive-open-drain: false
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additionalProperties: false
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required:
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- compatible
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- reg
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- '#gpio-cells'
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- gpio-controller
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allOf:
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- $ref: "pinctrl.yaml#"
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- if:
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not:
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properties:
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compatible:
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contains:
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enum:
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- semtech,sx1507q
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- semtech,sx1508q
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- semtech,sx1509q
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then:
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properties:
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semtech,probe-reset: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- semtech,sx1501q
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- semtech,sx1504q
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then:
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patternProperties:
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'-cfg$':
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properties:
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pins:
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items:
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pattern: '^gpio[0-3]$'
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- if:
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properties:
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compatible:
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contains:
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enum:
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- semtech,sx1502q
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- semtech,sx1505q
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then:
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patternProperties:
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'-cfg$':
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properties:
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pins:
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items:
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pattern: '^gpio[0-7]$'
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- if:
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properties:
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compatible:
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contains:
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enum:
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- semtech,sx1503q
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- semtech,sx1506q
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then:
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patternProperties:
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'-cfg$':
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properties:
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pins:
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items:
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pattern: '^gpio[0-15]$'
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- if:
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properties:
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compatible:
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contains:
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const: semtech,sx1507q
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then:
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patternProperties:
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'-cfg$':
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properties:
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pins:
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items:
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pattern: '^(oscio|gpio[0-3])$'
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- if:
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properties:
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compatible:
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contains:
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const: semtech,sx1508q
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then:
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patternProperties:
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'-cfg$':
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properties:
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pins:
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items:
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pattern: '^(oscio|gpio[0-7])$'
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- if:
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properties:
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compatible:
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contains:
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const: semtech,sx1509q
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then:
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patternProperties:
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'-cfg$':
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properties:
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pins:
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items:
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pattern: '^(oscio|gpio[0-15])$'
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c@1000 {
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reg = <0x1000 0x80>;
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#address-cells = <1>;
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#size-cells = <0>;
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pinctrl@20 {
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compatible = "semtech,sx1501q";
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reg = <0x20>;
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#gpio-cells = <2>;
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#interrupt-cells = <2>;
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interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
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gpio-controller;
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interrupt-controller;
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gpio1-cfg {
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pins = "gpio1";
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bias-pull-up;
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};
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};
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};
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