Convert the DT binding documentation for the TI TFP410 DPI-to-DVI
encoder to json-schema.
The 'ti,deskew' is now an unsigned value from 0 to 7 instead of a signed
value from -4 to 3. The rest of the binding is a direct translation from
the old one.
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@xxxxxxxxxxxxx>
---
.../bindings/display/bridge/ti,tfp410.txt | 66 ----------
.../bindings/display/bridge/ti,tfp410.yaml | 124 ++++++++++++++++++
2 files changed, 124 insertions(+), 66 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/bridge/ti,tfp410.txt
create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,tfp410.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,tfp410.txt b/Documentation/devicetree/bindings/display/bridge/ti,tfp410.txt
deleted file mode 100644
index 5ff4f64ef8e8..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/ti,tfp410.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-TFP410 DPI to DVI encoder
-=========================
-
-Required properties:
-- compatible: "ti,tfp410"
-
-Optional properties:
-- powerdown-gpios: power-down gpio
-- reg: I2C address. If and only if present the device node should be placed
- into the I2C controller node where the TFP410 I2C is connected to.
-- ti,deskew: data de-skew in 350ps increments, from -4 to +3, as configured
- through th DK[3:1] pins. This property shall be present only if the TFP410
- is not connected through I2C.
-
-Required nodes:
-
-This device has two video ports. Their connections are modeled using the OF
-graph bindings specified in [1]. Each port node shall have a single endpoint.
-
-- Port 0 is the DPI input port. Its endpoint subnode shall contain a
- pclk-sample and bus-width property and a remote-endpoint property as specified
- in [1].
- - If pclk-sample is not defined, pclk-sample = 0 should be assumed for
- backward compatibility.
- - If bus-width is not defined then bus-width = 24 should be assumed for
- backward compatibility.
- bus-width = 24: 24 data lines are connected and single-edge mode
- bus-width = 12: 12 data lines are connected and dual-edge mode
-
-- Port 1 is the DVI output port. Its endpoint subnode shall contain a
- remote-endpoint property is specified in [1].
-
-[1] Documentation/devicetree/bindings/media/video-interfaces.txt
-
-
-Example
--------
-
-tfp410: encoder@0 {
- compatible = "ti,tfp410";
- powerdown-gpios = <&twl_gpio 2 GPIO_ACTIVE_LOW>;
- ti,deskew = <4>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
-
- tfp410_in: endpoint@0 {
- pclk-sample = <1>;
- bus-width = <24>;
- remote-endpoint = <&dpi_out>;
- };
- };
-
- port@1 {
- reg = <1>;
-
- tfp410_out: endpoint@0 {
- remote-endpoint = <&dvi_connector_in>;
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,tfp410.yaml b/Documentation/devicetree/bindings/display/bridge/ti,tfp410.yaml
new file mode 100644
index 000000000000..a9f4fd8ea621
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ti,tfp410.yaml
@@ -0,0 +1,124 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/ti,tfp410.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TFP410 DPI to DVI encoder
+
+maintainers:
+ - Tomi Valkeinen <tomi.valkeinen@xxxxxx>
+ - Jyri Sarha <jsarha@xxxxxx>
+
+properties:
+ compatible:
+ const: ti,tfp410
+
+ reg:
+ description: I2C address of the device.
+ maxItems: 1
+
+ powerdown-gpios:
+ maxItems: 1
+
+ ti,deskew:
+ description:
+ Data de-skew value in 350ps increments, from 0 to 7, as configured
+ through the DK[3:1] pins. The de-skew multiplier is computed as
+ (DK[3:1] - 4), so it ranges from -4 to 3. This property shall be
+ present only if the TFP410 is not connected through I2C.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 7
+
+ ports:
+ description:
+ A node containing input and output port nodes with endpoint
+ definitions as documented in
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+ type: object
+
+ properties:
+ port@0:
+ description: DPI input port.
+ type: object
+
+ properties:
+ reg:
+ const: 0
+
+ endpoint:
+ type: object
+
+ properties:
+ pclk-sample:
+ description:
+ Endpoint sampling edge. If not defined, pclk-sample =
+ 0 should be assumed for backwards compatibility.
+ enum:
+ - 0 # Falling edge
+ - 1 # Rising edge
+ default: 0
+
+ bus-width:
+ description:
+ Endpoint bus width. If not defined, bus-width = 24
+ should be assumed for backwards compatibility.
+ enum:
+ - 12 # 12 data lines connected and dual-edge mode
+ - 24 # 24 data lines connected and single-edge mode
+ default: 24
+
+ port@1:
+ description: DVI output port.
+ type: object
+
+ properties:
+ reg:
+ const: 1
+
+ endpoint:
+ type: object
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ tfp410: encoder {
+ compatible = "ti,tfp410";
+ powerdown-gpios = <&twl_gpio 2 GPIO_ACTIVE_LOW>;
+ ti,deskew = <3>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ tfp410_in: endpoint {
+ pclk-sample = <1>;
+ bus-width = <24>;
+ remote-endpoint = <&dpi_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ tfp410_out: endpoint {
+ remote-endpoint = <&dvi_connector_in>;
+ };
+ };
+ };
+ };
+
+...
--
2.18.0
