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Date: Wed, 7 Dec 2022 11:05:31 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Okan Sahin <okan.sahin@...log.com>, outreachy@...ts.linux.dev
Cc: Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Manish Narani <manish.narani@...inx.com>,
Marcelo Schmitt <marcelo.schmitt1@...il.com>,
Caleb Connolly <caleb.connolly@...aro.org>,
Marcus Folkesson <marcus.folkesson@...il.com>,
ChiYuan Huang <cy_huang@...htek.com>,
Anand Ashok Dumbre <anand.ashok.dumbre@...inx.com>,
Ramona Bolboaca <ramona.bolboaca@...log.com>,
William Breathitt Gray <william.gray@...aro.org>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-iio@...r.kernel.org
Subject: Re: [PATCH 2/5] staging: dt-bindings: mfd: adi,max77541.yaml Add
MAX77541 bindings
On 07/12/2022 10:08, Okan Sahin wrote:
> This patch adds document the bindings for MAX77541 MFD driver. It also
Do not use "This commit/patch".
https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95
> includes MAX77540 driver whose regmap is covered by MAX77541.
>
> Signed-off-by: Okan Sahin <okan.sahin@...log.com>
> ---
> .../devicetree/bindings/mfd/adi,max77541.yaml | 134 ++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 135 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/adi,max77541.yaml
>
> diff --git a/Documentation/devicetree/bindings/mfd/adi,max77541.yaml b/Documentation/devicetree/bindings/mfd/adi,max77541.yaml
> new file mode 100644
> index 000000000000..205953e6dd15
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/adi,max77541.yaml
> @@ -0,0 +1,134 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/adi,max77541.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MAX77540/MAX77541 PMIC from ADI.
Drop trailing space.
> +
> +maintainers:
> + - Okan Sahin <okan.sahin@...log.com>
> +
> +description: |
> + MAX77540 is a Power Management IC with 2 buck regulators.
> +
> + MAX77541 is a Power Management IC with 2 buck regulators and 1 ADC.
> +
> +properties:
> + compatible:
> + enum:
> + - adi,max77540
> + - adi,max77541
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + regulators:
> + $ref: /schemas/regulator/adi,max77541.yaml#
I don't think you tested this patch. There is no such file.
> +
> + adc:
> + type: object
> + additionalProperties: false
> + properties:
> + compatible:
> + const: adi,max77541-adc
Why having a child without any resources? It does not look like needed
and instead your parent driver should instantiate the child device.
> + required:
> + -compatible
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: adi,max77540
> + then:
> + properties:
> + regulator:
> + properties:
> + compatible:
> + const: adi,max77540-regulator
> + else:
> + properties:
> + regulator:
> + properties:
> + compatible:
> + const: adi,max77541-regulator
> + adc:
> + properties:
> + compatible:
> + const: adi,max77541-adc
The adc part is not needed anyway - duplicating what's in top-level
properties.
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pmic@69 {
> + compatible = "adi,max77540";
> + reg = <0x69>;
> + interrupt-parent = <&gpio>;
> + interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
> +
> + regulators {
> + buck1 {
> + regulator-min-microvolt = <500000>;
> + regulator-max-microvolt = <5200000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> + buck2 {
> + regulator-min-microvolt = <500000>;
> + regulator-max-microvolt = <5200000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> + };
> + };
> + };
> +
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pmic@69 {
> + compatible = "adi,max77541";
Keep only one example (more complex one) - they are almost the same.
> + reg = <0x63>;
> + interrupt-parent = <&gpio>;
> + interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
> +
> + regulators {
> + buck1 {
> + regulator-min-microvolt = <500000>;
> + regulator-max-microvolt = <5200000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> + buck2 {
> + regulator-min-microvolt = <500000>;
> + regulator-max-microvolt = <5200000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> + };
> +
> + adc {
> + compatible = "adi,max77541-adc";
> + }
> + };
> + };
> \ No newline at end of file
Error here.
> diff --git a/MAINTAINERS b/MAINTAINERS
> index af94d06bb9f0..22f5a9c490e3 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -12501,6 +12501,7 @@ MAXIM MAX77541 PMIC MFD DRIVER
> M: Okan Sahin <okan.sahin@...log.com>
> L: linux-kernel@...r.kernel.org
> S: Maintained
> +F: Documentation/devicetree/bindings/mfd/adi,max77541.yaml
> F: drivers/mfd/max77541.c
> F: include/linux/mfd/max77541.h
>
Best regards,
Krzysztof
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