Re: [PATCH 1/9] ARM: boards: protonic-imx6: prtvt7 hardkey inputs are active low

[Marco Felsch <m.felsch@pengutronix.de>]

On 22-06-17, Sascha Hauer wrote:
> On Thu, Jun 16, 2022 at 06:38:45PM +0200, Oleksij Rempel wrote:
> > Am 16.06.22 um 18:28 schrieb Oleksij Rempel:
> > > Hi Robin,
> > > 
> > > On Thu, Jun 16, 2022 at 03:11:06PM +0200, Robin van der Gracht wrote:
> > > > The usb check needs to be skipped unless both keys are pressed
> > > > simultaneously.
> > > > 
> > > > Signed-off-by: Robin van der Gracht <robin@protonic.nl>
> > > > ---
> > > >   arch/arm/boards/protonic-imx6/board.c | 2 +-
> > > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > > > 
> > > > diff --git a/arch/arm/boards/protonic-imx6/board.c b/arch/arm/boards/protonic-imx6/board.c
> > > > index cdbb8debe6..8f8a0c745e 100644
> > > > --- a/arch/arm/boards/protonic-imx6/board.c
> > > > +++ b/arch/arm/boards/protonic-imx6/board.c
> > > > @@ -645,7 +645,7 @@ static int prt_imx6_init_prtvt7(struct prt_imx6_priv *priv)
> > > >   	gpio_direction_input(GPIO_KEY_F6);
> > > >   	gpio_direction_input(GPIO_KEY_CYCLE);
> > > > 
> > > > -	if (gpio_get_value(GPIO_KEY_CYCLE) && gpio_get_value(GPIO_KEY_F6))
> > > > +	if (gpio_get_value(GPIO_KEY_CYCLE) || gpio_get_value(GPIO_KEY_F6))
> > > >   		priv->no_usb_check = 1;
> > > 
> > > Hm, you probably wont:
> > > 	if (!(gpio_get_value(GPIO_KEY_CYCLE) && gpio_get_value(GPIO_KEY_F6)))
> > > 
> > > otherwise usb check will be always skipped.
> > 
> > Or, it is active low and your patch is correct :D
> 
> If they are, can we add a comment or _N suffix to the names?

Does barebox not have gpiod? The board code just should check if it is
active or not. Whatever active means in this case.

Regards,
  Marco

> 
> Sascha
> 
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