Re: [PATCHv9 1/3] Runtime Interpreted Power Sequences

Mark Brown
2012-11-27T16:46:12Z

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On Tue, Nov 27, 2012 at 04:37:32PM +0100, Laurent Pinchart wrote:

> One possibly crazy idea I had was to replace backlight devices as we know them
> with LED devices (a LED driver IC shouldn't be supported by different APIs
> depending on whether the LEDs it drives are used as a backlight or not), and
> have the panel hook up with the associated LED device to expose backlight
> operations through the CDF. Panels with a backlight controller tied to the
> panel controller (control through DSI for instance) would implement the
> backlight operations directly without instantiating a LED device. This still
> leaves the question of the userspace backlight brightness API open.

I remember looking at that before but never actually got round to it, it
seems like a sensible idea to me.

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