diff options
| author | Serge Semin <fancer.lancer@gmail.com> | 2019-04-25 00:12:07 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-02 20:28:56 +0300 |
| commit | 6e7adf3ea6133255deae219b8d6a57eee4ac9cf5 (patch) | |
| tree | c85239edab14d3164b7078eac1e1c1a51c3cccc3 /drivers/usb | |
| parent | 73d31def1aabd2a57b85bd2e48d244a5d5a2f58d (diff) | |
| download | linux-6e7adf3ea6133255deae219b8d6a57eee4ac9cf5.tar.xz | |
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 <fancer.lancer@gmail.com>
Acked-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/misc/usb251xb.c | 2 |
1 files changed, 2 insertions, 0 deletions
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. |