From 7effc8ba3e831b740b792093be8765290e49c0c8 Mon Sep 17 00:00:00 2001 From: Scott Telford Date: Thu, 9 Aug 2018 11:30:29 +0100 Subject: dt-bindings: phy: Document Cadence MHDP DisplayPort PHY bindings Signed-off-by: Scott Telford Signed-off-by: Kishon Vijay Abraham I --- .../devicetree/bindings/phy/phy-cadence-dp.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-cadence-dp.txt diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-dp.txt b/Documentation/devicetree/bindings/phy/phy-cadence-dp.txt new file mode 100644 index 000000000000..7f49fd54ebc1 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-cadence-dp.txt @@ -0,0 +1,30 @@ +Cadence MHDP DisplayPort SD0801 PHY binding +=========================================== + +This binding describes the Cadence SD0801 PHY hardware included with +the Cadence MHDP DisplayPort controller. + +------------------------------------------------------------------------------- +Required properties (controller (parent) node): +- compatible : Should be "cdns,dp-phy" +- reg : Defines the following sets of registers in the parent + mhdp device: + - Offset of the DPTX PHY configuration registers + - Offset of the SD0801 PHY configuration registers +- #phy-cells : from the generic PHY bindings, must be 0. + +Optional properties: +- num_lanes : Number of DisplayPort lanes to use (1, 2 or 4) +- max_bit_rate : Maximum DisplayPort link bit rate to use, in Mbps (2160, + 2430, 2700, 3240, 4320, 5400 or 8100) +------------------------------------------------------------------------------- + +Example: + dp_phy: phy@f0fb030a00 { + compatible = "cdns,dp-phy"; + reg = <0xf0 0xfb030a00 0x0 0x00000040>, + <0xf0 0xfb500000 0x0 0x00100000>; + num_lanes = <4>; + max_bit_rate = <8100>; + #phy-cells = <0>; + }; -- cgit v1.2.3