From c90553b3c4ac2389a71a5c012b6e5bb1160d48a7 Mon Sep 17 00:00:00 2001 From: Andreas Noever Date: Tue, 3 Jun 2014 22:04:11 +0200 Subject: thunderbolt: Read switch uid from EEPROM Add eeprom access code and read the uid during switch initialization. The UID will be used to check device identity after suspend. Signed-off-by: Andreas Noever Signed-off-by: Greg Kroah-Hartman --- drivers/thunderbolt/switch.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/thunderbolt/switch.c') diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 667413f3ad7a..aeb5c30f8d76 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -376,6 +376,11 @@ struct tb_switch *tb_switch_alloc(struct tb *tb, u64 route) } sw->cap_plug_events = cap; + if (tb_eeprom_read_uid(sw, &sw->uid)) + tb_sw_warn(sw, "could not read uid from eeprom\n"); + else + tb_sw_info(sw, "uid: %#llx\n", sw->uid); + if (tb_plug_events_active(sw, true)) goto err; -- cgit v1.2.3