Commit 2ad3e131 authored by Mika Westerberg's avatar Mika Westerberg
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thunderbolt: Do not touch lane 1 adapter path config space 



It is not required to be implemented at all because USB4 does not use
lane 1 for tunneling except when aggregated with lane 0. For this reason
do not try to read the path config space of USB4 lane 1 adapters.

Signed-off-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
parent 4796efdd

drivers/thunderbolt/switch.c

+1 −1
Original line number Diff line number Diff line
@@ -723,7 +723,7 @@ static int tb_init_port(struct tb_port *port) 
		 * can be read from the path config space. Legacy

		 * devices we use hard-coded value.

		 */

		if (tb_switch_is_usb4(port->sw)) {

		if (port->cap_usb4) {

			struct tb_regs_hop hop;



			if (!tb_port_read(port, &hop, TB_CFG_HOPS, 0, 2))