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SubjectRe: [PATCH v3 3/5] drivers: regulator: Add ADI MAX77541/MAX77540 Regulator Support
On Wed, Jan 18, 2023 at 09:38:10AM +0300, Okan Sahin wrote:
> Regulator driver for both MAX77541 and MAX77540.
> 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.

Happy New Year!

...

> +static int max77541_regulator_probe(struct platform_device *pdev)
> +{
> + struct max77541 *max77541 = dev_get_drvdata(pdev->dev.parent);
> + struct regulator_config config = {};
> + const struct regulator_desc *desc;
> + struct device *dev = &pdev->dev;

You may rearrange this a bit

struct max77541 *max77541 = dev_get_drvdata(dev->parent);

> + struct regulator_dev *rdev;
> + int i;

> + config.dev = pdev->dev.parent;

dev->parent

> +
> + if (max77541->id == MAX77540)
> + desc = max77540_regulators_desc;
> + else if (max77541->id == MAX77541)
> + desc = max77541_regulators_desc;
> + else
> + return -EINVAL;
> +
> + for (i = 0; i < MAX77541_MAX_REGULATORS; i++) {

> + rdev = devm_regulator_register(dev,
> + &desc[i], &config);

This is perfectly one line.

> + if (IS_ERR(rdev))
> + return dev_err_probe(dev, PTR_ERR(rdev),
> + "Failed to register regulator\n");
> + }
> +
> + return 0;
> +}

...

> +static const struct of_device_id max77541_regulator_of_id[] = {
> + {
> + .compatible = "adi,max77540-regulator",
> + .data = (void *)MAX77540,
> + },
> + {
> + .compatible = "adi,max77541-regulator",
> + .data = (void *)MAX77541,
> + },
> + { /* sentinel */ }

As pointed out, better to use pointers directly.

> +};

--
With Best Regards,
Andy Shevchenko


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