After enabling runtime PM, if we force hardware reset multiple times with: # echo 1 > /sys/kernel/debug/ieee80211/phy0/wlcore/start_recovery
We will after few tries get the following error: wlcore: ERROR timeout waiting for the hardware to complete initialization And then wlcore is unable to reconnect until after the wlcore related modules are reloaded. Let's fix this by moving pm_runtime_put() earlier before we restart the hardware. And let's use the sync version to make sure we're done before we restart. Note that we still will get -EBUSY warning from wl12xx_sdio_set_power() but let's fix that separately once we know exactly why we get the warning. Reported-by: Eyal Reizer <[email protected]> Signed-off-by: Tony Lindgren <[email protected]> --- drivers/net/wireless/ti/wlcore/main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -977,6 +977,7 @@ static void wl1271_recovery_work(struct work_struct *work) } wlcore_op_stop_locked(wl); + pm_runtime_put_sync(wl->dev); ieee80211_restart_hw(wl->hw); @@ -986,8 +987,6 @@ static void wl1271_recovery_work(struct work_struct *work) */ wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_FW_RESTART); - pm_runtime_put(wl->dev); - out_unlock: wl->watchdog_recovery = false; clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags); -- 2.17.1
