[PATCH 2/4] dt-bindings: display: sun6i-dsi: Add the A100 variant

[Samuel Holland]

The "40nm" MIPI DSI controller found in the A100 and D1 SoCs has the
same register layout as previous SoC integrations. However, its module
clock now comes from the TCON, which means it no longer runs at a fixed
rate, so this needs to be distinguished in the driver.

The controller also now uses pins on Port D instead of dedicated pins,
so it drops the separate power domain.

Signed-off-by: Samuel Holland <samuel at sholland.org>
---
Removal of the vcc-dsi-supply is maybe a bit questionable. Since there
is no "VCC-DSI" pin anymore, it's not obvious which pin actually does
power the DSI controller/PHY. Possibly power comes from VCC-PD or VCC-IO
or VCC-LVDS. So far, all boards have all of these as always-on supplies,
so it is hard to test.

 .../display/allwinner,sun6i-a31-mipi-dsi.yaml | 28 +++++++++++++++----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
index ae55ef3fb1fe..c53c25b87bd4 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
@@ -12,9 +12,14 @@ maintainers:
 
 properties:
   compatible:
-    enum:
-      - allwinner,sun6i-a31-mipi-dsi
-      - allwinner,sun50i-a64-mipi-dsi
+    oneOf:
+      - enum:
+          - allwinner,sun6i-a31-mipi-dsi
+          - allwinner,sun50i-a64-mipi-dsi
+          - allwinner,sun50i-a100-mipi-dsi
+      - items:
+          - const: allwinner,sun20i-d1-mipi-dsi
+          - const: allwinner,sun50i-a100-mipi-dsi
 
   reg:
     maxItems: 1
@@ -59,7 +64,6 @@ required:
   - phys
   - phy-names
   - resets
-  - vcc-dsi-supply
   - port
 
 allOf:
@@ -68,7 +72,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: allwinner,sun6i-a31-mipi-dsi
+            enum:
+              - allwinner,sun6i-a31-mipi-dsi
+              - allwinner,sun50i-a100-mipi-dsi
 
     then:
       properties:
@@ -83,6 +89,18 @@ allOf:
         clocks:
           maxItems: 1
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - allwinner,sun6i-a31-mipi-dsi
+              - allwinner,sun50i-a64-mipi-dsi
+
+    then:
+      required:
+        - vcc-dsi-supply
+
 unevaluatedProperties: false
 
 examples:
-- 
2.35.1