openwrt/target/linux/d1/patches-6.1/0095-dt-bindings-display-sun6i-dsi-Add-the-A100-variant.patch

From 30abd0e5f27bc57fba7084ba51aca671316b6d24 Mon Sep 17 00:00:00 2001
From: Samuel Holland <samuel@sholland.org>
Date: Sun, 7 Aug 2022 10:50:21 -0500
Subject: [PATCH 095/117] dt-bindings: display: sun6i-dsi: Add the A100 variant

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.

Commit-notes:
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.
END

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
---
 .../display/allwinner,sun6i-a31-mipi-dsi.yaml | 28 +++++++++++++++----
 1 file changed, 23 insertions(+), 5 deletions(-)

--- 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: