Commit 5261e48f authored Sep 15, 2020 by Roger Quadros Committed by Felipe Balbi Oct 02, 2020

dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property



Controller version 0x0002450D has USB2 PHY RX sensitivity issues
that needs to be worked around by enabling phyrst-a-enable bit
in PHYRST_CFG register.

There is no way to know controller version before device controller
is started and the workaround needs to be applied for both host and
device modes, so we add this DT property.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

parent 68989fe1

Documentation/devicetree/bindings/usb/cdns,usb3.yaml

+4 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,10 @@ properties:
		buffers expressed in KB
		$ref: /schemas/types.yaml#/definitions/uint32

		cdns,phyrst-a-enable:
		description: Enable resetting of PHY if Rx fail is detected
		type: boolean

		required:
		- compatible
		- reg