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The LT9611 has two DSI input ports (Port A and Port B). Update the binding to clearly document the port mapping and allow using Port B alone when DSI is physically connected to Port B only. Changes: - Clarify port@0 corresponds to DSI Port A input - Clarify port@1 corresponds to DSI Port B input - Change port requirement from mandatory port@0 to anyOf port@0/port@1, allowing either port to be used independently Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Hongyang Zhao <hongyang.zhao@thundersoft.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Roger Shimizu <rosh@debian.org> Tested-by: Roger Shimizu <rosh@debian.org> Link: https://patch.msgid.link/20260207-rubikpi-next-20260116-v3-1-23b9aa189a3a@thundersoft.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
132 lines
2.7 KiB
YAML
132 lines
2.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/bridge/lontium,lt9611.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Lontium LT9611(UXC) 2 Port MIPI to HDMI Bridge
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maintainers:
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- Vinod Koul <vkoul@kernel.org>
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description: |
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The LT9611 and LT9611UXC are bridge devices which convert DSI to HDMI
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properties:
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compatible:
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enum:
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- lontium,lt9611
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- lontium,lt9611uxc
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reg:
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maxItems: 1
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"#sound-dai-cells":
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const: 1
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interrupts:
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maxItems: 1
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reset-gpios:
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maxItems: 1
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description: GPIO connected to active high RESET pin.
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vdd-supply:
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description: Regulator for 1.8V MIPI phy power.
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vcc-supply:
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description: Regulator for 3.3V IO power.
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port@0:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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DSI Port A input. directly drives the display, or works in
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combination with Port B for higher resolution displays.
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port@1:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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DSI Port B input. Can be used alone if DSI is physically
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connected to Port B, or in combination with Port A for higher
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resolution displays.
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port@2:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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HDMI port for HDMI output
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anyOf:
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- required:
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- port@0
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- required:
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- port@1
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required:
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- port@2
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required:
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- compatible
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- reg
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- interrupts
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- vdd-supply
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- vcc-supply
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- ports
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allOf:
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- $ref: /schemas/sound/dai-common.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c10 {
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#address-cells = <1>;
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#size-cells = <0>;
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hdmi-bridge@3b {
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compatible = "lontium,lt9611";
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reg = <0x3b>;
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reset-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>;
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interrupts-extended = <&tlmm 84 IRQ_TYPE_EDGE_FALLING>;
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vdd-supply = <<9611_1v8>;
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vcc-supply = <<9611_3v3>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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lt9611_a: endpoint {
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remote-endpoint = <&dsi0_out>;
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};
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};
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port@1 {
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reg = <1>;
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lt9611_b: endpoint {
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remote-endpoint = <&dsi1_out>;
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};
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};
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port@2 {
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reg = <2>;
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lt9611_out: endpoint {
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remote-endpoint = <&hdmi_con>;
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};
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};
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};
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};
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};
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...
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