于 2017年6月10日 GMT+08:00 上午12:49:15, Maxime Ripard [off-list ref] 写到:

On Wed, Jun 07, 2017 at 04:48:50PM +0800, Icenowy Zheng wrote:

quoted

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@@ -189,6 +211,8 @@ supported.
 Required properties:
   - compatible: value must be one of:
     * allwinner,sun8i-v3s-de2-mixer
+    * allwinner,sun8i-h3-de2-mixer0
+    * allwinner,sun8i-h3-de2-mixer1

Again, please explain why we need to have different compatibles
here. If it's only about the number of planes, this should be dealt
with a property, not a compatible.

Only mixer0 has "VEP" and write-back support, at least on H3.

What is that VEP? writeback support can also be expressed by a
property.

I don't know what VEP is...

But we are really facing different cores, like sun50i-a64-mmc
and sun50i-a64-emmc.

Maxime

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