Hi Javier,
On Monday 23 May 2011 09:25:01 javier Martin wrote:
> On 22 May 2011 15:49, Igor Grinberg <grinberg@xxxxxxxxxxxxxx> wrote:
[snip]
> >> @@ -309,6 +357,15 @@ static int beagle_twl_gpio_setup(struct device
> >> *dev, pr_err("%s: unable to configure EHCI_nOC\n", __func__); }
> >>
> >> + if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
> >> + /*
> >> + * Power on camera interface - only on pre-production, not
> >> + * needed on production boards
> >> + */
> >> + gpio_request(gpio + 2, "CAM_EN");
> >> + gpio_direction_output(gpio + 2, 1);
> >
> > Why not gpio_request_one()?
>
> Just to follow the same approach as in the rest of the code.
> Maybe a further patch could change all "gpio_request()" uses to
> "gpio_request_one()".
Please do it the other way around. Replace calls to gpio_request() +
gpio_direction_output() with a call to gpio_request_one(), and then modify
this patch to use gpio_request_one().
If you want to learn how to use coccinelle (http://coccinelle.lip6.fr/), now
would be a good time. You could use it to replace gpio_request() +
gpio_direction_output() through the whole kernel.
--
Regards,
Laurent Pinchart
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