[PATCH v3 1/6] iio: adc: xilinx-xadc: Modernize driver code

[Joshua Crofts]

On Wed, 29 Jul 2026 18:24:50 +0530
Dileep Kumar Nagavarapu <DileepKumar.Nagavarapu at amd.com> wrote:

> Modernize the XADC driver by updating the code to follow current
> kernel development practices.
> 
> The changes include:
> - Switching to kernel integer types (u16, u32)
> - Replacing open-coded bit manipulation with GENMASK(),
>   and FIELD_GET() helpers
> - Using cleanup and guard helpers where appropriate
> - Addressing coding style issues reported by checkpatch.pl
> - Removing legacy coding patterns and simplifying the code
> - Added MAINTAINERS entry for the Xilinx XADC driver
> 
> These updates improve readability, maintainability, and consistency
> with modern kernel APIs without changing functionality.
> 
> No functional change intended.
> 
> Co-developed-by: Sai Krishna Potthuri <sai.krishna.potthuri at amd.com>
> Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri at amd.com>
> Signed-off-by: Dileep Kumar Nagavarapu <DileepKumar.Nagavarapu at amd.com>
> ---

I thought I was reading a cover letter and then I realized that these
are all changes in one patch only. Please separate this into multiple
patches, I count 6 separate patches.

>  MAINTAINERS                          |   7 +
>  drivers/iio/adc/xilinx-xadc-core.c   | 351 ++++++++++++---------------
>  drivers/iio/adc/xilinx-xadc-events.c |  53 ++--
>  drivers/iio/adc/xilinx-xadc.h        |  78 +++---
>  4 files changed, 222 insertions(+), 267 deletions(-)
> 

...

> diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
> index cab66bb8cc1c..b468179736f7 100644
> --- a/drivers/iio/adc/xilinx-xadc-core.c
> +++ b/drivers/iio/adc/xilinx-xadc-core.c
> @@ -11,6 +11,9 @@
>   *  - AXI XADC interface: Xilinx PG019
>   */
>  
> +#include <linux/bitfield.h>
> +#include <linux/bits.h>
> +#include <linux/cleanup.h>

Since you're moving the driver to kernel types, include <linux/types.h>
as well.

Maybe you could do an additional patch that removes the catch-all kernel.h
header and adds used/removes unused headers in accordance with the IWYU
principle?

-- 
Kind regards,
Joshua Crofts