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Date: Fri, 10 Jun 2022 14:38:18 -0600
From: Rob Herring <robh@...nel.org>
To: David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Thierry Reding <thierry.reding@...il.com>,
Sam Ravnborg <sam@...nborg.org>,
Liviu Dudau <Liviu.Dudau@....com>,
Andre Przywara <andre.przywara@....com>
Cc: Linus Walleij <linus.walleij@...aro.org>,
Robin Murphy <robin.murphy@....com>,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: display: panel-simple: Add Arm virtual platforms display
'arm,rtsm-display' is a panel for Arm, Ltd. virtual platforms (e.g. FVP).
The binding has been in use for a long time, but was never documented.
Some users and an example have a 'panel-dpi' compatible, but that's not
needed without a 'panel-timing' node which none of the users have since
commit 928faf5e3e8d ("arm64: dts: fvp: Remove panel timings"). The
example does have a 'panel-timing' node, but it should not for the
same reasons the node was removed in the dts files. So update the
example in arm,pl11x.yaml to match the schema.
Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: Robin Murphy <robin.murphy@....com>
Cc: Andre Przywara <andre.przywara@....com>
Signed-off-by: Rob Herring <robh@...nel.org>
---
.../bindings/display/arm,pl11x.yaml | 15 +-------------
.../bindings/display/panel/panel-simple.yaml | 20 +++++++++++++------
2 files changed, 15 insertions(+), 20 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/arm,pl11x.yaml b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
index b545c6d20325..6cc9045e5c68 100644
--- a/Documentation/devicetree/bindings/display/arm,pl11x.yaml
+++ b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
@@ -159,25 +159,12 @@ examples:
};
panel {
- compatible = "arm,rtsm-display", "panel-dpi";
- power-supply = <&vcc_supply>;
+ compatible = "arm,rtsm-display";
port {
clcd_panel: endpoint {
remote-endpoint = <&clcd_pads>;
};
};
-
- panel-timing {
- clock-frequency = <25175000>;
- hactive = <640>;
- hback-porch = <40>;
- hfront-porch = <24>;
- hsync-len = <96>;
- vactive = <480>;
- vback-porch = <32>;
- vfront-porch = <11>;
- vsync-len = <2>;
- };
};
...
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
index 21ba90c9fe33..97afd276c54a 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -19,9 +19,6 @@ description: |
If the panel is more advanced a dedicated binding file is required.
-allOf:
- - $ref: panel-common.yaml#
-
properties:
compatible:
@@ -35,6 +32,8 @@ properties:
- ampire,am-480272h3tmqw-t01h
# Ampire AM-800480R3TMQW-A1H 7.0" WVGA TFT LCD panel
- ampire,am800480r3tmqwa1h
+ # Arm, Ltd. Virtual Platforms Display
+ - arm,rtsm-display
# AU Optronics Corporation 10.1" WSVGA TFT LCD panel
- auo,b101aw03
# AU Optronics Corporation 10.1" WSVGA TFT LCD panel
@@ -340,9 +339,18 @@ properties:
additionalProperties: false
-required:
- - compatible
- - power-supply
+allOf:
+ - $ref: panel-common.yaml#
+ - if:
+ # Most 'simple' panels must have a single supply, but a virtual display does not
+ not:
+ properties:
+ compatible:
+ contains:
+ const: arm,rtsm-display
+ then:
+ required:
+ - power-supply
examples:
- |
--
2.34.1
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