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SubjectRe: [PATCH 1/2] fb: backlight: HX8357: Make IM pins optionnal
On Tue, Jun 25, 2013 at 03:50:15PM +0200, Maxime Ripard wrote:
> > > };
> > >
> > > static u8 hx8357_seq_power[] = {
> > > @@ -250,9 +251,11 @@ static int hx8357_lcd_init(struct lcd_device *lcdev)
> > > * Set the interface selection pins to SPI mode, with three
> > > * wires
> > > */
> > > - gpio_set_value_cansleep(lcd->im_pins[0], 1);
> > > - gpio_set_value_cansleep(lcd->im_pins[1], 0);
> > > - gpio_set_value_cansleep(lcd->im_pins[2], 1);
> > > + if (lcd->use_im_pins) {
> > > + gpio_set_value_cansleep(lcd->im_pins[0], 1);
> > > + gpio_set_value_cansleep(lcd->im_pins[1], 0);
> > > + gpio_set_value_cansleep(lcd->im_pins[2], 1);
> > > + }
> >
> > base on the dt probe you may have gpios betwee 0 to HX8357_NUM_IM_PINS
> >
> > so this look wrong
>
> How so?
>
> HX8357_NUM_IM_PINS is defined to 3, the probe checks to see if we
> actually have HX8357_NUM_IM_PINS, otherwise returns an error, what is
> wrong in setting these pins here?

Ping?

I'd really like to get this merged, could you clarify what you want?

Thanks,
Maxime

--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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