From: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Date: Wed, 30 Nov 2011 05:11:20 +0000 (+0530)
Subject: ath9k_hw: check for asynchronous MCI interrupt pending
X-Git-Tag: v3.3-rc1~182^2~44^2~255
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e35848134ccbd74fa8162d3b00461e189f913dfc;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git

ath9k_hw: check for asynchronous MCI interrupt pending

MCI interrupt is an asynchronous one, so take care of it by having a
check in ath9k_hw_intrpend, which actually decides whether the interrupt
is really for the driver from ath_isr

Cc: Wilson Tsao <wtsao@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 9d69320..0e4fbb3 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -760,7 +760,10 @@ bool ath9k_hw_intrpend(struct ath_hw *ah)
 		return true;
 
 	host_isr = REG_READ(ah, AR_INTR_ASYNC_CAUSE);
-	if ((host_isr & AR_INTR_MAC_IRQ) && (host_isr != AR_INTR_SPURIOUS))
+
+	if (((host_isr & AR_INTR_MAC_IRQ) ||
+	     (host_isr & AR_INTR_ASYNC_MASK_MCI)) &&
+	    (host_isr != AR_INTR_SPURIOUS))
 		return true;
 
 	host_isr = REG_READ(ah, AR_INTR_SYNC_CAUSE);