Thread (17 messages) read the whole thread 17 messages, 4 authors, 2021-07-29
STALE1830d

Revision v1 of 3 in this series.

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[PATCH 1/5] dt-bindings: msm/dp: Change reg definition

From: Bjorn Andersson <hidden>
Date: 2021-07-22 02:44:18
Also in: dri-devel, linux-arm-msm, lkml
Subsystem: drm driver for qualcomm display hardware, drm drivers, drm drivers and misc gpu patches, open firmware and flattened device tree bindings, the rest · Maintainers: Rob Clark, Dmitry Baryshkov, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

reg was defined as one region covering the entire DP block, but the
memory map is actually split in 4 regions and obviously the size of
these regions differs between platforms.

Switch the reg to require that all four regions are specified instead.
It is expected that the implementation will handle existing DTBs, even
though the schema defines the new layout.

Signed-off-by: Bjorn Andersson <redacted>
---
 .../bindings/display/msm/dp-controller.yaml           | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index 64d8d9e5e47a..a6e41be038fc 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -19,7 +19,11 @@ properties:
       - qcom,sc7180-dp
 
   reg:
-    maxItems: 1
+    items:
+      - description: ahb register block
+      - description: aux register block
+      - description: link register block
+      - description: p0 register block
 
   interrupts:
     maxItems: 1
@@ -100,7 +104,10 @@ examples:
 
     displayport-controller@ae90000 {
         compatible = "qcom,sc7180-dp";
-        reg = <0xae90000 0x1400>;
+        reg = <0xae90000 0x200>,
+              <0xae90200 0x200>,
+              <0xae90400 0xc00>,
+              <0xae91000 0x400>;
         interrupt-parent = <&mdss>;
         interrupts = <12>;
         clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
-- 
2.29.2
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