linux-kernel - Re: [PATCH] gpio: 104-dio-48e: Utilize mask_buf_def in handle_mask

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Date:   Mon, 6 Mar 2023 10:50:07 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     William Breathitt Gray <william.gray@...aro.org>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linus.walleij@...aro.org
Subject: Re: [PATCH] gpio: 104-dio-48e: Utilize mask_buf_def in
 handle_mask_sync() callback

On Wed, Feb 15, 2023 at 8:39 PM William Breathitt Gray
<william.gray@...aro.org> wrote:
>
> The mask_buf_def argument provides a mask of all the maskable lines.
> Utilize mask_buf_def rather than hardcode an "all_masked" mask.
>
> Signed-off-by: William Breathitt Gray <william.gray@...aro.org>
> ---
>  drivers/gpio/gpio-104-dio-48e.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c
> index a3846faf3780..74e2721f2613 100644
> --- a/drivers/gpio/gpio-104-dio-48e.c
> +++ b/drivers/gpio/gpio-104-dio-48e.c
> @@ -106,7 +106,6 @@ static int dio48e_handle_mask_sync(struct regmap *const map, const int index,
>  {
>         unsigned int *const irq_mask = irq_drv_data;
>         const unsigned int prev_mask = *irq_mask;
> -       const unsigned int all_masked = GENMASK(1, 0);
>         int err;
>         unsigned int val;
>
> @@ -118,7 +117,7 @@ static int dio48e_handle_mask_sync(struct regmap *const map, const int index,
>         *irq_mask = mask_buf;
>
>         /* if all previously masked, enable interrupts when unmasking */
> -       if (prev_mask == all_masked) {
> +       if (prev_mask == mask_buf_def) {
>                 err = regmap_write(map, DIO48E_CLEAR_INTERRUPT, 0x00);
>                 if (err)
>                         return err;
> @@ -126,7 +125,7 @@ static int dio48e_handle_mask_sync(struct regmap *const map, const int index,
>         }
>
>         /* if all are currently masked, disable interrupts */
> -       if (mask_buf == all_masked)
> +       if (mask_buf == mask_buf_def)
>                 return regmap_read(map, DIO48E_DISABLE_INTERRUPT, &val);
>
>         return 0;
>
> base-commit: 4827aae061337251bb91801b316157a78b845ec7
> --
> 2.39.1
>

Applied, thanks!

Bart