From: Utkarsh Patel Date: Wed, 9 Dec 2020 04:24:08 +0000 (-0800) Subject: usb: typec: intel_pmc_mux: Configure cable generation value for USB4 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=beff5de94fd45dc68f65b45634013184b6d66519;p=linux.git usb: typec: intel_pmc_mux: Configure cable generation value for USB4 USB4 specification chapter 3 indicates that cable data rates have to be rounded for USB4 device to operate as USB4. With that configure cable generation value to use rounded data rates for USB4. Reviewed-by: Heikki Krogerus  Signed-off-by: Utkarsh Patel Link: https://lore.kernel.org/r/20201209042408.23079-2-utkarsh.h.patel@intel.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index e58ae8a7fefb4..cf37a59ce1304 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -327,6 +327,11 @@ pmc_usb_mux_usb4(struct pmc_usb_port *port, struct typec_mux_state *state) fallthrough; default: req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE; + + /* Configure data rate to rounded in the case of Active TBT3 + * and USB4 cables. + */ + req.mode_data |= PMC_USB_ALTMODE_TBT_GEN(1); break; }