linux-kernel - Re: [PATCH] dt-bindings: mfd: Add bindings for the Mediatek MT6360 PMIC

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Message-ID: <20200616131607.GQ2608702@dell>
Date:   Tue, 16 Jun 2020 14:16:07 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Gene Chen <gene.chen.richtek@...il.com>
Cc:     robh+dt@...nel.org, matthias.bgg@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        gene_chen@...htek.com, Wilma.Wu@...iatek.com,
        shufan_lee@...htek.com, cy_huang@...htek.com
Subject: Re: [PATCH] dt-bindings: mfd: Add bindings for the Mediatek MT6360
 PMIC

On Tue, 16 Jun 2020, Gene Chen wrote:

> From: Gene Chen <gene_chen@...htek.com>
> 
> Add devicetree binding document support Mediatek MT6360 PMIC

This should have been submitted with the driver.

> Signed-off-by: Gene Chen <gene_chen@...htek.com>
> ---
>  Documentation/devicetree/bindings/mfd/mt6360.txt | 53 ++++++++++++++++++++++++
>  1 file changed, 53 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/mt6360.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/mt6360.txt b/Documentation/devicetree/bindings/mfd/mt6360.txt
> new file mode 100644
> index 0000000..e25b5c6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/mt6360.txt
> @@ -0,0 +1,53 @@
> +MediaTek MT6360 Multifunction Device Driver

No such thing as an MFD (we made it up!).

Please describe the device.

> +MT6360 is a multifunction device with the following sub modules:

As above.  MFD is a Linuxisum which is not allowed in DT.

> +- ADC
> +- Battery Charger/OTG boost
> +- Flash LED/RGB LED/moonlight LED
> +- 2-channel Buck
> +- 6-channel LDO
> +- USB_PD
> +
> +It is interfaced to host controller using I2C interface.
> +This document describes the binding for MFD device and its sub module.

As above.  This sentence should be at the top in any case.

> +Required properties:
> +- compatible:	Must be "mediatek,mt6360_pmu"

No '_'s in DT.

> +- reg:			Specifies the I2C slave address of PMIC block, Must be <0x34>
> +- interrupts:	I2C device IRQ line connected to the main SoC.
> +
> +Optional subnodes:
> +- ADC
> +	Required properties:
> +		- compatible: "mediatek,mt6360_adc"
> +- battery charger/OTG boost
> +	Required properties:
> +		- compatible: "mediatek,mt6360_chg"
> +- Flash LED/RGB LED/moonlight LED
> +	Required properties:
> +		- compatible: "mediatek,mt6360_led"
> +- 2-channel Buck
> +	Required properties:
> +		- compatible: "mediatek,mt6360_pmic"
> +- 6-channel LDO
> +	Required properties:
> +		- compatible: "mediatek,mt6360_ldo"
> +- USB_PD
> +	Required properties:
> +		- compatible: "mediatek,mt6360_tcpc"

No '_'s.  Must be '-'.

> +Example:
> +
> +	#include <dt-bindings/usb/pd.h>
> +
> +	pmu: mt6360_pmu@34 {
> +		status = "ok";

"okay" is more common I think.

Should be at the bottom if not omitted altogether.

> +		compatible = "mediatek,mt6360_pmu";
> +		reg = <0x34>;
> +		wakeup-source;
> +		interrupts-extended = <&gpio26 0 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-names = "IRQB";
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> +

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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