On Fri, Apr 24, 2015 at 02:49:37PM +0200, Hannes Petermaier wrote: > Since the used AM3352 SoC doesn't have GPU it isn't allways necessary to build > in complete drm-stuff into linux kernel. In very small applications only we > use > the simple-framebuffer. > > So we have 2 use-cases: > - device operating on drm-driver (let simplefb node disabled) > - device operating on simplefb-driver (activate simplefb node and reserve mem) > > The decision is made by means of "simplefb" environment variable. > > simplefb = 0 > we don't enable the (maybe) existing simplefb node and all the rest around > display is up to the linux-kernel. We just disable the backlight, beceause we > do not want see the flicker during take over of drm-driver. > > simplefb = 1 > we enable the (maybe) existing simplefb node and reserve framebuffers size > in memory. > > Signed-off-by: Hannes Petermaier <oe5...@oevsv.at>
Applied to u-boot/master, thanks! -- Tom
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