[PATCH v5 2/4] dt-bindings: display: bridge: Add documentation for LT9611

Vinod Koul
2020-07-08T10:36:32Z

Lontium LT9611 is a DSI to HDMI bridge which supports 2 DSI ports
and I2S port as input and one HDMI port as output

Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
.../display/bridge/lontium,lt9611.yaml | 176 ++++++++++++++++++
1 file changed, 176 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
new file mode 100644
index 000000000000..d60208359234
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
@@ -0,0 +1,176 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lontium,lt9611.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lontium LT9611 2 Port MIPI to HDMI Bridge
+
+maintainers:
+ - Vinod Koul <vkoul@kernel.org>
+
+description: |
+ The LT9611 is a bridge device which converts DSI to HDMI
+
+properties:
+ compatible:
+ enum:
+ - lontium,lt9611
+
+ reg:
+ maxItems: 1
+
+ "#sound-dai-cells":
+ const: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+ description: GPIO connected to active high RESET pin.
+
+ vdd-supply:
+ description: Regulator for 1.8V MIPI phy power.
+
+ vcc-supply:
+ description: Regulator for 3.3V IO power.
+
+ ports:
+ type: object
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Primary MIPI port-1 for MIPI input
+
+ properties:
+ reg:
+ const: 0
+
+ patternProperties:
+ "^endpoint(@[0-9])$":
+ type: object
+ additionalProperties: false
+
+ properties:
+ remote-endpoint:
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ required:
+ - reg
+
+ port@1:
+ type: object
+ description: |
+ Additional MIPI port-2 for MIPI input, used in combination
+ with primary MIPI port-1 to drive higher resolution displays
+
+ properties:
+ reg:
+ const: 1
+
+ patternProperties:
+ "^endpoint(@[0-9])$":
+ type: object
+ additionalProperties: false
+
+ properties:
+ remote-endpoint:
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ required:
+ - reg
+
+ port@2:
+ type: object
+ description: |
+ HDMI port for HDMI output
+
+ properties:
+ reg:
+ const: 2
+
+ patternProperties:
+ "^endpoint(@[0-9])$":
+ type: object
+ additionalProperties: false
+
+ properties:
+ remote-endpoint:
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ required:
+ - reg
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@2
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - vdd-supply
+ - vcc-supply
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c10 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi-bridge@3b {
+ compatible = "lontium,lt9611";
+ reg = <0x3b>;
+
+ reset-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>;
+ interrupts-extended = <&tlmm 84 IRQ_TYPE_EDGE_FALLING>;
+
+ vdd-supply = <&lt9611_1v8>;
+ vcc-supply = <&lt9611_3v3>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ lt9611_a: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ lt9611_b: endpoint {
+ remote-endpoint = <&dsi1_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ lt9611_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+ };
+ };
+ };
+
+...
--
2.26.2