From 6e7adf3ea6133255deae219b8d6a57eee4ac9cf5 Mon Sep 17 00:00:00 2001 From: Serge Semin Date: Thu, 25 Apr 2019 00:12:07 +0300 Subject: usb: usb251xb: Add US port lanes inversion property The driver bindings already declare the "swap-dx-lanes" property to invert the downstream ports lanes polarity. The similar config can be defined for a single upstream port - "swap-us-lanes". It's going to be boolean since there is only one upstream port on the hub. Signed-off-by: Serge Semin Acked-by: Richard Leitner Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/usb251xb.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/usb/misc/usb251xb.c') diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 119aeb658c81..4d6ae3795a88 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -574,6 +574,8 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, hub->port_swap = USB251XB_DEF_PORT_SWAP; usb251xb_get_ports_field(hub, "swap-dx-lanes", data->port_cnt, &hub->port_swap); + if (of_get_property(np, "swap-us-lanes", NULL)) + hub->port_swap |= BIT(0); /* The following parameters are currently not exposed to devicetree, but * may be as soon as needed. -- cgit v1.2.3