linux-kernel - Re: [PATCH 3/5] staging: drivers: regulator: Add MAX77541 Regulator Support

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Date:   Wed, 7 Dec 2022 13:16:46 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Okan Sahin <okan.sahin@...log.com>
Cc:     outreachy@...ts.linux.dev, 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>,
        Marcelo Schmitt <marcelo.schmitt1@...il.com>,
        ChiYuan Huang <cy_huang@...htek.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Marcus Folkesson <marcus.folkesson@...il.com>,
        Caleb Connolly <caleb.connolly@...aro.org>,
        Anand Ashok Dumbre <anand.ashok.dumbre@...inx.com>,
        Ramona Bolboaca <ramona.bolboaca@...log.com>,
        William Breathitt Gray <william.gray@...aro.org>,
        Manish Narani <manish.narani@...inx.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-iio@...r.kernel.org
Subject: Re: [PATCH 3/5] staging: drivers: regulator: Add MAX77541 Regulator
 Support

On Wed, Dec 07, 2022 at 12:08:42PM +0300, Okan Sahin wrote:
> This patch adds regulator driver for both MAX77541 and MAX77540.

Read Submitting Patches documentation on how to create better commit message.

> The MAX77541 is a high-efficiency step-down converter
> with two 3A switching phases for single-cell Li+ battery and 5VDC systems.
> 
> The MAX77540 is a high-efficiency step-down converter
> with two 3A switching phases.

...

> +/*
> + * Copyright (c) 2022 Analog Devices, Inc.
> + * ADI Regulator driver for the MAX77540 and MAX77541

> + *

Redundant blank line.

> + */

...

> +static const unsigned int max77541_buck_volt_range_sel[] = {
> +	0x00, 0x00, 0x40, 0x40, 0x80, 0x80

You can leave trailing comma.

> +};

...

> +static const struct regulator_desc max77540_regulators_desc[] = {
> +	MAX77540_BUCK(1, max77541_buck_ops),
> +	MAX77540_BUCK(2, max77541_buck_ops)

Ditto.

> +};
> +
> +static const struct regulator_desc max77541_regulators_desc[] = {
> +	MAX77541_BUCK(1, max77541_buck_ops),
> +	MAX77541_BUCK(2, max77541_buck_ops)

Ditto.

> +};

...

> +struct max77541_regulator_dev {
> +	struct device *dev;

Isn't it the same as...

> +	struct max77541_dev *max77541;

...max77541->dev ?

> +};

...

> +static int max77541_regulator_probe(struct platform_device *pdev)
> +{

	truct device *dev = &pdev->dev;

will save you a bit of code below.

> +	struct max77541_dev *max77541 = dev_get_drvdata(pdev->dev.parent);


...


> +				return dev_err_probe(&pdev->dev, PTR_ERR(rdev),
> +							"Failed to register regulator\n");

Wrong indentation.

...

> +				return dev_err_probe(&pdev->dev, PTR_ERR(rdev),
> +						"Failed to register regulator\n");

Ditto.

...

> +

Redundant blank line.

> +module_platform_driver(max77541_regulator_driver);

-- 
With Best Regards,
Andy Shevchenko