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 <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 667413f..aeb5c30 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -376,6 +376,11 @@
}
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;