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Message-Id: <20210227161228.1632521-2-adrien.grassein@gmail.com>
Date: Sat, 27 Feb 2021 17:12:27 +0100
From: Adrien Grassein <adrien.grassein@...il.com>
To: unlisted-recipients:; (no To-header on input)
Cc: robert.foss@...aro.org, airlied@...ux.ie, daniel@...ll.ch,
a.hajda@...sung.com, robh+dt@...nel.org, narmstrong@...libre.com,
Laurent.pinchart@...asonboard.com, jonas@...boo.se,
jernej.skrabec@...l.net, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Adrien Grassein <adrien.grassein@...il.com>,
Rob Herring <robh@...nel.org>
Subject: [PATCH v5 1/2] dt-bindings: display: bridge: Add documentation for LT8912B
Lontium LT8912B is a DSI to HDMI bridge.
Signed-off-by: Adrien Grassein <adrien.grassein@...il.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
.../display/bridge/lontium,lt8912b.yaml | 102 ++++++++++++++++++
MAINTAINERS | 5 +
2 files changed, 107 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
new file mode 100644
index 000000000000..735d0233a7d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912b.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lontium LT8912B MIPI to HDMI Bridge
+
+maintainers:
+ - Adrien Grassein <adrien.grassein@...il.com>
+
+description: |
+ The LT8912B is a bridge device which convert DSI to HDMI
+
+properties:
+ compatible:
+ enum:
+ - lontium,lt8912b
+
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+ description: GPIO connected to active high RESET pin.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Primary MIPI port for MIPI input
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes: true
+
+ required:
+ - data-lanes
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: |
+ HDMI port, should be connected to a node compatible with the
+ hdmi-connector binding.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi-bridge@48 {
+ compatible = "lontium,lt8912b";
+ reg = <0x48>;
+ reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ hdmi_out_in: endpoint {
+ data-lanes = <0 1 2 3>;
+ remote-endpoint = <&mipi_dsi_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&hdmi_in>;
+ };
+ };
+ };
+ };
+ };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 16ada1a4b751..6366b8eac3f6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10460,6 +10460,11 @@ S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git
F: drivers/hid/hid-lg-g15.c
+LONTIUM LT8912B MIPI TO HDMI BRIDGE
+M: Adrien Grassein <adrien.grassein@...il.com>
+S: Maintained
+F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
+
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
M: Sathya Prakash <sathya.prakash@...adcom.com>
M: Sreekanth Reddy <sreekanth.reddy@...adcom.com>
--
2.25.1
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