On Fri, Sep 02, 2016 at 02:02:30PM +0800, Chen-Yu Tsai wrote: > Hi, > > On Thu, Sep 1, 2016 at 11:31 PM, Maxime Ripard > <maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote: > > The A33 has a significantly different pipeline, with components that differ > > too. > > > > Make sure we had compatible for them. > > > > Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> > > --- > > Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 7 ++++++- > > drivers/gpu/drm/sun4i/sun4i_backend.c | 1 + > > drivers/gpu/drm/sun4i/sun4i_drv.c | 8 +++++--- > > drivers/gpu/drm/sun4i/sun4i_tcon.c | 8 +++++++- > > 4 files changed, 19 insertions(+), 5 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt > > index df8f4aeefe4c..d467ea93ac08 100644 > > --- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt > > +++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt > > @@ -26,7 +26,9 @@ TCON > > The TCON acts as a timing controller for RGB, LVDS and TV interfaces. > > > > Required properties: > > - - compatible: value should be "allwinner,sun5i-a13-tcon". > > + - compatible: value must be either: > > + * allwinner,sun5i-a13-tcon > > + * allwinner,sun8i-a23-tcon > > From what I can tell from the manuals, the A23 TCON and A33 TCON are > slightly different. The A23 TCON has channel 1, and it also has DMA > input. A33 has neither. (Though the DMA chart still lists the TCON DRQ.) > > I think we should have separate compatibles for them. If you think > otherwise you should mention it in the commit message. Ack, i will change it in the v2. Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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