On Mon, Aug 21, 2017 at 04:44:30PM +0800, icenowy@xxxxxxx wrote: > 在 2017-08-21 16:40，Maxime Ripard 写道： > > On Thu, Aug 17, 2017 at 03:49:26PM +0800, Icenowy Zheng wrote: > > > Q8 tablets with Allwinner A33 SoC now come with two kind of LCD, > > > either > > > 800x480 or 1024x600. > > > > > > In order for sun4i-drm to be able to choose correct LCD configuration, > > > two different device trees should be present, one for a resolution. > > > > > > Add stub device trees for two resolutions. > > > > > > As the sun4i-drm driver still has some problems to support the LCDs, > > > the > > > real LCD device nodes are not added to the device tree files. > > > > > > Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx> > > > > This should be an overlay, ideally applied by the bootloader. > > I think this is not suitable for overlay. > > The two kind of Q8 tablets are not compatible at all, and they > should both have a suitable device tree. How are they not compatible? Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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