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thunderbolt: Keep the parent runtime resumed for a while on device disconnect 

When doing device firmware upgrade the device will disconnect for a
while and then reconnect back. Keep the parent device (and the whole
domain) powered for a while so we don't need to runtime resume
immediately when the device is connected back after the device upgrade
completes.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2020-11-10 11:04:31 +03:00
parent a359525897
commit b658eb9d90
1 changed files with 11 additions and 0 deletions
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11
drivers/thunderbolt/icm.c
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@ -870,7 +870,13 @@ icm_fr_device_disconnected(struct tb *tb, const struct icm_pkg_header *hdr)
return;
}
pm_runtime_get_sync(sw->dev.parent);
remove_switch(sw);
pm_runtime_mark_last_busy(sw->dev.parent);
pm_runtime_put_autosuspend(sw->dev.parent);
tb_switch_put(sw);
}
@ -1280,8 +1286,13 @@ icm_tr_device_disconnected(struct tb *tb, const struct icm_pkg_header *hdr)
tb_warn(tb, "no switch exists at %llx, ignoring\n", route);
return;
}
pm_runtime_get_sync(sw->dev.parent);
remove_switch(sw);
pm_runtime_mark_last_busy(sw->dev.parent);
pm_runtime_put_autosuspend(sw->dev.parent);
tb_switch_put(sw);
}