linux-kernel - [PATCH 3/3] mwifiex: wake system up when receives a wake irq

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Message-Id: <1487917471-5501-3-git-send-email-jeffy.chen@rock-chips.com>
Date:   Fri, 24 Feb 2017 14:24:31 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     Amitkumar Karwar <akarwar@...vell.com>
Cc:     Brian Norris <briannorris@...omium.org>,
        Rajat Jain <rajatja@...gle.com>,
        Jeffy Chen <jeffy.chen@...k-chips.com>,
        Kalle Valo <kvalo@...eaurora.org>, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
        Nishant Sarmukadam <nishants@...vell.com>
Subject: [PATCH 3/3] mwifiex: wake system up when receives a wake irq

Currrently we are disabling this wake irq after receiving it. If this
happens before we finish suspend and the pm event check is disabled,
the system will continue suspending, and this irq would not work again.

We may need to abort system suspend to avoid that.

Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
---

 drivers/net/wireless/marvell/mwifiex/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
index 5ebca1d..30f4994 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -17,6 +17,8 @@
  * this warranty disclaimer.
  */
 
+#include <linux/suspend.h>
+
 #include "main.h"
 #include "wmm.h"
 #include "cfg80211.h"
@@ -1509,6 +1511,7 @@ static irqreturn_t mwifiex_irq_wakeup_handler(int irq, void *priv)
 
 	/* Notify PM core we are wakeup source */
 	pm_wakeup_event(adapter->dev, 0);
+	pm_system_wakeup();
 
 	return IRQ_HANDLED;
 }
-- 
2.1.4