[PATCH v5 3/4] dt-bindings: Add binding for IT6505.

[allen]

Add a DT binding documentation for IT6505.

Signed-off-by: Allen Chen <allen.chen at ite.com.tw>
Signed-off-by: Pi-Hsun Shih <pihsun at chromium.org>
---
 .../bindings/display/bridge/ite,it6505.yaml        | 99 ++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
new file mode 100644
index 00000000..23a106a
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/ite,it6505.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ITE it6505 Device Tree Bindings
+
+maintainers:
+  - Allen Chen <allen.chen at ite.com.tw>
+
+description: |
+  The IT6505 is a high-performance DisplayPort 1.1a transmitter,
+fully compliant with DisplayPort 1.1a, HDCP 1.3 specifications.
+The IT6505 supports color depth of up to 36 bits (12 bits/color)
+and ensures robust transmission of high-quality uncompressed video
+content, along with uncompressed and compressed digital audio content.
+
+  Aside from the various video output formats supported, the IT6505
+also encodes and transmits up to 8 channels of I2S digital audio,
+with sampling rate up to 192kHz and sample size up to 24 bits.
+In addition, an S/PDIF input port takes in compressed audio of up to
+192kHz frame rate.
+
+  Each IT6505 chip comes preprogrammed with an unique HDCP key,
+in compliance with the HDCP 1.3 standard so as to provide secure
+transmission of high-definition content. Users of the IT6505 need not
+purchase any HDCP keys or ROMs.
+
+properties:
+  compatible:
+    const: ite,it6505
+
+  reg:
+    - maxItems: 1
+    - description: i2c address of the bridge
+
+  ovdd-supply:
+    - maxItems: 1
+    - description: I/O voltage
+
+  pwr18-supply:
+    - maxItems: 1
+    - description: core voltage
+
+  interrupts:
+    - maxItems: 1
+    - description: interrupt specifier of INT pin
+
+  reset-gpios:
+    - maxItems: 1
+    - description: gpio specifier of RESET pin
+
+  hpd-gpios:
+    - maxItems: 1
+    - description:
+        - Hotplug detect GPIO
+        - Indicates which GPIO should be used for hotplug detection
+
+  extcon:
+    - maxItems: 1
+    - description: extcon specifier for the Power Delivery
+
+  port:
+    - type: object
+    - description: A port node pointing to DPI host port node
+
+required:
+  - compatible
+  - reg
+  - ovdd-supply
+  - pwr18-supply
+  - interrupts
+  - reset-gpios
+  - hpd-gpios
+  - extcon
+
+examples:
+  - |
+    dp-bridge at 5c {
+        compatible = "ite,it6505";
+        interrupts = <152 IRQ_TYPE_EDGE_RISING 152 0>;
+        reg = <0x5c>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&it6505_pins>;
+        ovdd-supply = <&mt6358_vsim1_reg>;
+        pwr18-supply = <&it6505_pp18_reg>;
+        reset-gpios = <&pio 179 1>;
+        hpd-gpios = <&pio 9 0>;
+        extcon = <&usbc_extcon>;
+
+        port {
+            it6505_in: endpoint {
+                remote-endpoint = <&dpi_out>;
+            };
+        };
+    };
+
+---
-- 
1.9.1