Re: [PATCH] video: ARM CLCD: Added support for FBIOPAN_DISPLAY and virtual y resolution
From: Russell King - ARM Linux
Date: Mon Mar 02 2015 - 11:11:48 EST
On Mon, Mar 02, 2015 at 04:08:29PM +0000, Pawel Moll wrote:
> I'm not sure about this... The word "virtual" never works well with
> device tree nodes defined as "hardware description".
> I understand what you're doing, but adding this property to the display
> controller's node doesn't sound right. How does this describe hardware?
> If anywhere, it's more like a job for the panel node?
A better description (and implementation) would be to describe the size
of the RAM available for video purposes. The driver can then use the
requested virtual X resolution to limit (and/or compute) the virtual Y
resolution to allow Y panning/wrapping of the display.
This would match some hardware where the video RAM is indeed a separate
physical set of RAM (such as the IM-PD/1).
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/