Add a DT binding documentation for IT6505. Signed-off-by: Allen Chen <allen.chen@xxxxxxxxxx> Signed-off-by: Pi-Hsun Shih <pihsun@xxxxxxxxxxxx> --- .../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@xxxxxxxxxx> + +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@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
