Hi,
On 11/25/2014 02:02 PM, Tomi Valkeinen wrote:
On 25/11/14 14:52, Hans de Goede wrote:
+Required properties:
+- compatible: "allwinner,simple-framebuffer"
+- allwinner,pipeline, one of:
Sorry my ignorance, but what's sunxi and what's allwinner? Both names
are mixed here.
sunxi is the sun#i SoCs from Allwinner, Allwinner is the manufacturer
and the
SoC "code" names used everywhere in the kernel for their SoCs are sun4i,
sun5i,
sun6i, etc. Most people refer to these SoCs as sunxi. This is also what the
linux-sunxi mailinglist in the Cc is about.
The official devicetree vendor prefix for Allwinner is allwinner, hence the
allwinner in the compatible name, see e.g. also
Documentation/devicetree/bindings/input/sun4i-lradc-keys.txt
Which also uses sunxi / sun4i everywhere except in the compatible vendor
prefix.
Alright, thanks for explanation.
Shouldn't the compatible then be "allwinner,sunxi-simple-framebuffer",
to differentiate from some other SoC Allwinner has or might create in
the future? That is, presuming you're confident enough that a single
compatible string covers all the current and forthcoming sunxi SoCs.
This was discussed in an earlier thread, we (Ian Campbell, Grant and me)
decided to settle on allwinner,simple-framebuffer to make it clear that
these are allwinner extensions to the standard simple-framebuffer bindings,
and that the node otherwise is simple-framebuffer compatible.
We were afraid that e.g. sun4i-simple-framebuffer would signal that it
is not a normal simple-framebuffer node, so we decided to go with just
the allwinner, prefix to indicate that it uses allwinner specific
extensions.
Regards,
Hans
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