wlcore: wakeup from ELP before starting recovery

Make sure the FW is awake when entering recovery. This is useful for
reading the FW panic log and also some FW registers giving us crash
report stats.

We must do this before interrupts are disabled since we rely on an
interrupt to complete the wakeup.

If the wakeup fails, continue recovery normally. All read/writes will be
blocked and won't do any harm.

Signed-off-by: Barak Bercovitz <barak@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 53bb353e86532aa467f637db111f7c4a6172c724..a9ee23417716c8ecd31ec8172419411b0c3b04ab 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -793,6 +793,7 @@ void wl12xx_queue_recovery_work(struct wl1271 *wl)
        if (wl->state == WLCORE_STATE_ON) {
                wl->state = WLCORE_STATE_RESTARTING;
                set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
+               wl1271_ps_elp_wakeup(wl);
                wlcore_disable_interrupts_nosync(wl);
                ieee80211_queue_work(wl->hw, &wl->recovery_work);
        }