[PATCH] gpio: stmpe: Add DT support for stmpe gpio
Lee Jones
lee.jones at linaro.org
Fri Nov 23 23:14:13 EST 2012
> >> - stmpe_gpio->chip.base = pdata ? pdata->gpio_base : -1;
> >
> > Why have you deleted this?
> >
> >> +
> >> + if (pdata) {
> >> + stmpe_gpio->norequest_mask = pdata->norequest_mask;
> >> + stmpe_gpio->chip.base = pdata->gpio_base;
> >
> > Then added this?
> >
> >> + } else {
> >> + stmpe_gpio->chip.base = -1;
> >
> > And this?
>
> To group all non-DT assignments in a single if block, instead of two.
That assignment has nothing to do with DT.
> > Just leave the top line in and it saves you lots of complecations.
>
> Sorry, Couldn't get this one.
I'm saying, just leave it where it is.
> >> + if (np)
> >> + of_property_read_u32(np, "st,norequest-mask",
> >> + &pdata->norequest_mask);
> >
> > Can you explain to me what this does?
>
> You mean pdata->norequest_mask? It marks few gpios as unusable.
> Because these pads might be used by other blocks of stmpe.
I'm not sure if that should be set with DT or not.
Second opinion anyone?
--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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