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Commit 4c48140a authored by Thierry Reding's avatar Thierry Reding
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gpu: host1x: Add MIPI pad calibration DT bindings 



Introduce device tree bindings for the MIPI pad calibration controller
found on Tegra SoCs. The controller can be used to perform calibration
of pads used for DSI and CSI peripherals.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 5d30be28

Documentation/devicetree/bindings/mipi/nvidia,tegra114-mipi.txt

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NVIDIA Tegra MIPI pad calibration controller



Required properties:

- compatible: "nvidia,tegra<chip>-mipi"

- reg: Physical base address and length of the controller's registers.

- clocks: Must contain an entry for each entry in clock-names.

  See ../clocks/clock-bindings.txt for details.

- clock-names: Must include the following entries:

  - mipi-cal

- #nvidia,mipi-calibrate-cells: Should be 1. The cell is a bitmask of the pads

  that need to be calibrated for a given device.



User nodes need to contain an nvidia,mipi-calibrate property that has a

phandle to refer to the calibration controller node and a bitmask of the pads

that need to be calibrated.



Example:



	mipi: mipi@700e3000 {

		compatible = "nvidia,tegra114-mipi";

		reg = <0x700e3000 0x100>;

		clocks = <&tegra_car TEGRA114_CLK_MIPI_CAL>;

		clock-names = "mipi-cal";

		#nvidia,mipi-calibrate-cells = <1>;

	};



	...



	host1x@50000000 {

		...



		dsi@54300000 {

			...



			nvidia,mipi-calibrate = <&mipi 0x060>;



			...

		};



		...

	};