diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-11-10 11:04:31 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-11-30 14:39:23 +0300 |
| commit | b658eb9d9075aa2b44834962a1efc4bc78e9bed8 (patch) | |
| tree | d0dd3fcf24b180e8f4d45cb6013dd9e7827f2b6c /drivers/thunderbolt | |
| parent | a3595258970bf2dfd21ba8fa3fb3d07000ae989c (diff) | |
| download | linux-b658eb9d9075aa2b44834962a1efc4bc78e9bed8.tar.bz2 | |
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>
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/icm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index beee6e6b8b6e..635b949fb1d6 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -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); } |