Re: [PATCH] gpio: dwapb: fix bgpio usage

[Hoan Tran <hotran@xxxxxxx>]

Hi Linus,

On Fri, Oct 20, 2017 at 3:29 AM, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
> The DW APB GPIO driver uses the generic GPIO library gpio-mmio,
> and initialize the flags as "false", which should be 0.
>
> When no flags are given, the native endianness is used to access
> the MMIO registers, and the pin2mask() call can simply be
> converted to a BIT() call, as per the default pin2mask()
> implementation in gpio-mmio.c.
>
> Cc: Hoan Tran <hotran@xxxxxxx>
> Cc: Alan Tull <atull@xxxxxxxxxx>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
>  drivers/gpio/gpio-dwapb.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
> index d782ad195c89..6730c6642ce3 100644
> --- a/drivers/gpio/gpio-dwapb.c
> +++ b/drivers/gpio/gpio-dwapb.c
> @@ -320,7 +320,7 @@ static int dwapb_gpio_set_debounce(struct gpio_chip *gc,
>         struct dwapb_gpio_port *port = gpiochip_get_data(gc);
>         struct dwapb_gpio *gpio = port->gpio;
>         unsigned long flags, val_deb;
> -       unsigned long mask = gc->pin2mask(gc, offset);
> +       unsigned long mask = BIT(offset);
>
>         spin_lock_irqsave(&gc->bgpio_lock, flags);
>
> @@ -482,7 +482,7 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
>                 (pp->idx * GPIO_SWPORT_DDR_SIZE);
>
>         err = bgpio_init(&port->gc, gpio->dev, 4, dat, set, NULL, dirout,
> -                        NULL, false);
> +                        NULL, 0);
>         if (err) {
>                 dev_err(gpio->dev, "failed to init gpio chip for port%d\n",
>                         port->idx);
> --
> 2.13.6
>

Acked-by: Hoan Tran <hotran@xxxxxxx>

Regards
Hoan
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