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Date: Tue, 3 Jan 2023 12:16:14 +0530
From: Aradhya Bhatia <a-bhatia1@...com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Tomi Valkeinen <tomba@...nel.org>,
Jyri Sarha <jyri.sarha@....fi>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Thierry Reding <thierry.reding@...il.com>,
Sam Ravnborg <sam@...nborg.org>,
Maxime Ripard <maxime@...no.tech>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Matthias Brugger <matthias.bgg@...il.com>,
Guo Ren <guoren@...nel.org>
CC: DRI Development List <dri-devel@...ts.freedesktop.org>,
Devicetree List <devicetree@...r.kernel.org>,
Linux Kernel List <linux-kernel@...r.kernel.org>,
Linux RISC-V List <linux-riscv@...ts.infradead.org>,
Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
Linux Mediatek List <linux-mediatek@...ts.infradead.org>,
Linux C-SKY Arch List <linux-csky@...r.kernel.org>,
Nishanth Menon <nm@...com>,
Vignesh Raghavendra <vigneshr@...com>,
Rahul T R <r-ravikumar@...com>,
Devarsh Thakkar <devarsht@...com>,
Jai Luthra <j-luthra@...com>,
Jayesh Choudhary <j-choudhary@...com>,
Aradhya Bhatia <a-bhatia1@...com>
Subject: [RFC PATCH 3/4] dt-bindings: panel: Introduce dual-link LVDS panel
Dual-link LVDS interfaces have 2 links, with even pixels traveling on
one link, and odd pixels on the other. These panels are also generic in
nature, with no documented constraints, much like their single-link
counterparts, "panel-lvds".
Add a new compatible, "panel-dual-lvds", and a dt-binding document for
these panels.
Signed-off-by: Aradhya Bhatia <a-bhatia1@...com>
---
.../display/panel/panel-dual-lvds.yaml | 157 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 158 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/panel-dual-lvds.yaml
diff --git a/Documentation/devicetree/bindings/display/panel/panel-dual-lvds.yaml b/Documentation/devicetree/bindings/display/panel/panel-dual-lvds.yaml
new file mode 100644
index 000000000000..88a7aa2410be
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/panel-dual-lvds.yaml
@@ -0,0 +1,157 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/panel-dual-lvds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic Dual-Link LVDS Display Panel
+
+maintainers:
+ - Aradhya Bhatia <a-bhatia1@...com>
+ - Thierry Reding <thierry.reding@...il.com>
+
+description: |
+ A dual-LVDS interface is a dual-link connection with the even pixels
+ traveling on one link, and the odd pixels traveling on the other.
+
+allOf:
+ - $ref: panel-common.yaml#
+ - $ref: /schemas/display/lvds.yaml/#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - lincolntech,lcd185-101ct
+ - microtips,13-101hieb0hf0-s
+ - const: panel-dual-lvds
+ - const: panel-dual-lvds
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: The sink for first set of LVDS pixels.
+
+ properties:
+ dual-lvds-odd-pixels:
+ type: boolean
+
+ dual-lvds-even-pixels:
+ type: boolean
+
+ oneOf:
+ - required: [dual-lvds-odd-pixels]
+ - required: [dual-lvds-even-pixels]
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: The sink for second set of LVDS pixels.
+
+ properties:
+ dual-lvds-even-pixels:
+ type: boolean
+
+ dual-lvds-odd-pixels:
+ type: boolean
+
+ oneOf:
+ - required: [dual-lvds-even-pixels]
+ - required: [dual-lvds-odd-pixels]
+
+ allOf:
+ - if:
+ properties:
+ port@0:
+ properties:
+ dual-lvds-odd-pixels: true
+ required:
+ - dual-lvds-odd-pixels
+ then:
+ properties:
+ port@1:
+ properties:
+ dual-lvds-even-pixels: true
+ dual-lvds-odd-pixels: false
+
+ - if:
+ properties:
+ port@0:
+ properties:
+ dual-lvds-even-pixels: true
+ required:
+ - dual-lvds-even-pixels
+ then:
+ properties:
+ port@1:
+ properties:
+ dual-lvds-odd-pixels: true
+ dual-lvds-even-pixels: false
+
+ required:
+ - port@0
+ - port@1
+
+ port: false
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - width-mm
+ - height-mm
+ - data-mapping
+ - panel-timing
+ - ports
+
+examples:
+ - |+
+ panel-dual-lvds {
+ compatible = "microtips,13-101hieb0hf0-s", "panel-dual-lvds";
+
+ width-mm = <217>;
+ height-mm = <136>;
+
+ data-mapping = "vesa-24";
+
+ panel-timing {
+ clock-frequency = <150275000>;
+ hactive = <1920>;
+ vactive = <1200>;
+ hfront-porch = <32>;
+ hsync-len = <52>;
+ hback-porch = <24>;
+ vfront-porch = <24>;
+ vsync-len = <8>;
+ vback-porch = <3>;
+ de-active = <1>;
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dual-lvds-odd-pixels;
+ lcd_in0: endpoint {
+ remote-endpoint = <&oldi_out0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dual-lvds-even-pixels;
+ lcd_in1: endpoint {
+ remote-endpoint = <&oldi_out1>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 7f86d02cb427..c13f24293ab1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6595,6 +6595,7 @@ T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/panel/panel-lvds.c
F: Documentation/devicetree/bindings/display/lvds.yaml
+F: Documentation/devicetree/bindings/display/panel/panel-dual-lvds.yaml
F: Documentation/devicetree/bindings/display/panel/panel-lvds.yaml
DRM DRIVER FOR MANTIX MLAF057WE51 PANELS
--
2.39.0
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