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Date: Thu, 17 Oct 2019 13:31:06 -0500
From: Rob Herring <robh@...nel.org>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Mark Rutland <mark.rutland@....com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Jacek Anaszewski <jacek.anaszewski@...il.com>,
Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>,
Lee Jones <lee.jones@...aro.org>,
Sebastian Reichel <sre@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, linux-input@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-leds@...r.kernel.org, linux-pm@...r.kernel.org,
Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v3 1/6] dt-bindings: mfd: max77650: convert the binding
document to yaml
On Thu, Oct 17, 2019 at 09:12:29AM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
>
> Convert the binding document for MAX77650 core MFD module to YAML.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
> ---
> .../devicetree/bindings/mfd/max77650.txt | 46 ------
> .../devicetree/bindings/mfd/max77650.yaml | 151 ++++++++++++++++++
> 2 files changed, 151 insertions(+), 46 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/mfd/max77650.txt
> create mode 100644 Documentation/devicetree/bindings/mfd/max77650.yaml
>
> diff --git a/Documentation/devicetree/bindings/mfd/max77650.txt b/Documentation/devicetree/bindings/mfd/max77650.txt
> deleted file mode 100644
> index b529d8d19335..000000000000
> --- a/Documentation/devicetree/bindings/mfd/max77650.txt
> +++ /dev/null
> @@ -1,46 +0,0 @@
> -MAX77650 ultra low-power PMIC from Maxim Integrated.
> -
> -Required properties:
> --------------------
> -- compatible: Must be "maxim,max77650"
> -- reg: I2C device address.
> -- interrupts: The interrupt on the parent the controller is
> - connected to.
> -- interrupt-controller: Marks the device node as an interrupt controller.
> -- #interrupt-cells: Must be <2>.
> -
> -- gpio-controller: Marks the device node as a gpio controller.
> -- #gpio-cells: Must be <2>. The first cell is the pin number and
> - the second cell is used to specify the gpio active
> - state.
> -
> -Optional properties:
> ---------------------
> -gpio-line-names: Single string containing the name of the GPIO line.
> -
> -The GPIO-controller module is represented as part of the top-level PMIC
> -node. The device exposes a single GPIO line.
> -
> -For device-tree bindings of other sub-modules (regulator, power supply,
> -LEDs and onkey) refer to the binding documents under the respective
> -sub-system directories.
> -
> -For more details on GPIO bindings, please refer to the generic GPIO DT
> -binding document <devicetree/bindings/gpio/gpio.txt>.
> -
> -Example:
> ---------
> -
> - pmic@48 {
> - compatible = "maxim,max77650";
> - reg = <0x48>;
> -
> - interrupt-controller;
> - interrupt-parent = <&gpio2>;
> - #interrupt-cells = <2>;
> - interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> -
> - gpio-controller;
> - #gpio-cells = <2>;
> - gpio-line-names = "max77650-charger";
> - };
> diff --git a/Documentation/devicetree/bindings/mfd/max77650.yaml b/Documentation/devicetree/bindings/mfd/max77650.yaml
> new file mode 100644
> index 000000000000..66a447e1cf56
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/max77650.yaml
> @@ -0,0 +1,151 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/max77650.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MAX77650 ultra low-power PMIC from Maxim Integrated.
> +
> +maintainers:
> + - Bartosz Golaszewski <bgolaszewski@...libre.com>
> +
> +description: |
> + This document describes the DT properties of the core MFD controller.
So does every file in this directory.
Describe what this chip is.
> +
> + The GPIO-controller module is represented as part of the top-level PMIC
> + node. The device exposes a single GPIO line.
> +
> + For device-tree bindings of other sub-modules (regulator, power supply,
> + LEDs and onkey) refer to the binding documents under the respective
> + sub-system directories.
> +
> + For more details on GPIO bindings, please refer to the generic GPIO DT
> + binding document <devicetree/bindings/gpio/gpio.txt>.
Also fairly useless and another reference to maintain...
> +
> +properties:
> + compatible:
> + const: maxim,max77650
> +
> + reg:
> + description:
> + I2C device address.
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + interrupt-controller: true
> +
> + "#interrupt-cells":
> + const: 2
> + description:
> + The first cell is the IRQ number, the second cell is the trigger type.
> +
> + gpio-controller: true
> +
> + "#gpio-cells":
> + const: 2
> + description:
> + The first cell is the pin number and the second cell is used to specify
> + the gpio active state.
> +
> + gpio-line-names:
> + maxItems: 1
> + description:
> + Single string containing the name of the GPIO line.
> +
> + regulators:
> + $ref: ../regulator/max77650-regulator.yaml
Not bisectable... This patch needs to come last.
> +
> + charger:
> + $ref: ../power/supply/max77650-charger.yaml
> +
> + leds:
> + $ref: ../leds/leds-max77650.yaml
> +
> + onkey:
> + $ref: ../input/max77650-onkey.yaml
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - interrupt-controller
> + - "#interrupt-cells"
> + - gpio-controller
> + - "#gpio-cells"
None of the child nodes are required?
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/input/linux-event-codes.h>
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pmic@48 {
> + compatible = "maxim,max77650";
> + reg = <0x48>;
> +
> + interrupt-controller;
> + interrupt-parent = <&gpio2>;
> + #interrupt-cells = <2>;
> + interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> +
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-line-names = "max77650-charger";
> +
> + regulators {
> + compatible = "maxim,max77650-regulator";
> +
> + max77650_ldo: regulator@0 {
> + regulator-compatible = "ldo";
> + regulator-name = "max77650-ldo";
> + regulator-min-microvolt = <1350000>;
> + regulator-max-microvolt = <2937500>;
> + };
> +
> + max77650_sbb0: regulator@1 {
> + regulator-compatible = "sbb0";
> + regulator-name = "max77650-sbb0";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <1587500>;
> + };
> + };
> +
> + charger {
> + compatible = "maxim,max77650-charger";
> + input-voltage-min-microvolt = <4200000>;
> + input-current-limit-microamp = <285000>;
> + };
> +
> + leds {
> + compatible = "maxim,max77650-led";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + led@0 {
> + reg = <0>;
> + label = "blue:usr0";
> + };
> +
> + led@1 {
> + reg = <1>;
> + label = "red:usr1";
> + linux,default-trigger = "heartbeat";
> + };
> +
> + led@2 {
> + reg = <2>;
> + label = "green:usr2";
> + };
> + };
> +
> + onkey {
> + compatible = "maxim,max77650-onkey";
> + linux,code = <KEY_END>;
> + maxim,onkey-slide;
> + };
> + };
> + };
> --
> 2.23.0
>
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