[Intel-gfx] [PATCH 1/2] gpio/crystalcove: Export Panel and backlight en/disable signals as GPIO

[Kumar, Shobhit]

On Mon, 2015-03-09 at 18:15 +0100, Linus Walleij wrote:
> On Fri, Mar 6, 2015 at 5:23 PM, Kumar, Shobhit <shobhit.kumar at intel.com> wrote:
> 
> > There are actually two lines for Panel Power control and Backlight
> > enable/disable. I have already moved towards adding a new Cell device
> > for PWM child device and a new pwm driver for the same. That will take
> > care of backlight thingy. But for the Panel power control, I am at loss
> > for how best to program that.
> 
> Isn't it just a very simple regulator (just on/off of fixed voltage) cell?
> 

It is just behaving as an output GPIO line and for that reason I feel
that rather than adding a new regulator driver, it is better to augment
the gpio-crystalcove driver. I am planning to export as GPIO from PMIC
MFD driver by way of lookup table and use in display side. Will send RFC
patch soon.

Backlight control as I said is a new pwm cell.

Regards
Shobhit

> Yours,
> Linus Walleij