Re: [PATCH] iio: adc: sun4i-gpadc-iio: Use devm_platform_ioremap_resource

From: Jonathan Cameron
Date: Mon Apr 13 2020 - 11:34:02 EST


On Sun, 12 Apr 2020 20:02:18 +0530
Aishwarya R <aishwaryarj100@xxxxxxxxx> wrote:

> From: Aishwarya Ramakrishnan <aishwaryarj100@xxxxxxxxx>
>
> Use the helper function that wraps the calls to platform_get_resource()
> and devm_ioremap_resource() together.Reduces boilerplate and suggested
> by coccinelle.
>
> Signed-off-by: Aishwarya Ramakrishnan <aishwaryarj100@xxxxxxxxx>

So couple of general things for future reference.
1. New versions of a patch need a title such as [PATCH V2]
2. You have several similar patches, they would have been best sent
as a series as that lets a maintainer pick them all up in one go.
3. Don't send new versions in reply to older versions. It doesn't scale
as we regularly end up 10 or more versions in to a series. Not to mention
many reviewers read backwards in time (as often earlier patches are resolved
before you get to them) so by sending it as a reply you ensured it was much
less likely to be applied. Here you were luck as I am on holiday so have
time to catch up.

Applied to the togreg branch of iio.git with the message above tidied up
a little. Will be pushed out as testing for the autobuilders to poke at it.

Thanks,

Jonathan

> ---
> drivers/iio/adc/sun4i-gpadc-iio.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
> index 176e1cb4abb1..0f2c1738a90d 100644
> --- a/drivers/iio/adc/sun4i-gpadc-iio.c
> +++ b/drivers/iio/adc/sun4i-gpadc-iio.c
> @@ -496,7 +496,6 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
> struct iio_dev *indio_dev)
> {
> struct sun4i_gpadc_iio *info = iio_priv(indio_dev);
> - struct resource *mem;
> void __iomem *base;
> int ret;
>
> @@ -508,8 +507,7 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
> indio_dev->num_channels = ARRAY_SIZE(sun8i_a33_gpadc_channels);
> indio_dev->channels = sun8i_a33_gpadc_channels;
>
> - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - base = devm_ioremap_resource(&pdev->dev, mem);
> + base = devm_platform_ioremap_resource(pdev, 0);
> if (IS_ERR(base))
> return PTR_ERR(base);
>