ath9k: Fix suspend/resume when no interface is UP

When no interface has been brought up, the chip's power
state continued as AWAKE. So during resume, the chip never
been powered up.

Cc: stable@kernel.org
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index b8cbfc7..3bad0b2 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -278,6 +278,12 @@ static int ath_pci_suspend(struct device *device)
 
        ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
 
+       /* The device has to be moved to FULLSLEEP forcibly.
+        * Otherwise the chip never moved to full sleep,
+        * when no interface is up.
+        */
+       ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
+
        return 0;
 }