[PATCH v1 2/2] iio: adc: npcm: Add NPCM8XX support

[Andy Shevchenko]

On Mon, Jul 11, 2022 at 3:59 PM Tomer Maimon <tmaimon77 at gmail.com> wrote:
>
> Adding ADC NPCM8XX support to NPCM ADC driver.
> ADC NPCM8XX uses a different resolution and voltage reference.
>
> As part of adding NPCM8XX support:
> - Add NPCM8XX specific compatible string.
> - Add data to handle architecture-specific ADC parameters.

Good patch, but one change can make it even better!

...

>         struct device *dev = &pdev->dev;
> +       const struct of_device_id *match;
>
>         indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
>         if (!indio_dev)
>                 return -ENOMEM;
>         info = iio_priv(indio_dev);
>
> -       mutex_init(&info->lock);
> +       match = of_match_node(npcm_adc_match, pdev->dev.of_node);
> +       if (!match || !match->data) {
> +               dev_err(dev, "Failed getting npcm_adc_data\n");
> +               return -ENODEV;
> +       }
>
> +       info->data = (struct npcm_adc_info *)match->data;

Instead of above

  info->data = device_get_match_data(dev);
  if (!info->data)
    return -ENODEV;

-- 
With Best Regards,
Andy Shevchenko