[048/107] ath9k: Fix suspend/resume when no interface is UP

From: Greg KH
Date: Fri Jul 08 2011 - 01:15:23 EST


2.6.39-stable review patch. If anyone has any objections, please let us know.

------------------

From: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>

commit c31eb8e926835582cd186b33a7a864880a4c0c79 upstream.

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

Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/net/wireless/ath/ath9k/pci.c | 6 ++++++
1 file changed, 6 insertions(+)

--- 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

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;
}



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