[Rajat Jain]

From: Wei-Ning Huang <wnhu...@google.com>

Date: Thu, 17 Mar 2016 11:43:16 +0800
Subject: [PATCH] mwifiex: report wakeup for wowlan

Enable notifying wakeup source to the PM core. This allow darkresume to
correctly track wakeup source and mark mwifiex_plt as 'automatic' wakeup
source.

Signed-off-by: Wei-Ning Huang <wnhu...@google.com>
Signed-off-by: Rajat Jain <raja...@google.com>
Tested-by: Wei-Ning Huang <wnhu...@chromium.org>
Reviewed-by: Eric Caruso <ejcar...@chromium.org>
---
 drivers/net/wireless/marvell/mwifiex/sdio.c | 8 ++++++++
 drivers/net/wireless/marvell/mwifiex/sdio.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c 
b/drivers/net/wireless/marvell/mwifiex/sdio.c
index d3e1561..a5f63e4 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -89,6 +89,9 @@ static irqreturn_t mwifiex_wake_irq_wifi(int irq, void *priv)
                disable_irq_nosync(irq);
        }
 
+       /* Notify PM core we are wakeup source */
+       pm_wakeup_event(cfg->dev, 0);
+
        return IRQ_HANDLED;
 }
 
@@ -112,6 +115,7 @@ static int mwifiex_sdio_probe_of(struct device *dev, struct 
sdio_mmc_card *card)
                                          GFP_KERNEL);
        cfg = card->plt_wake_cfg;
        if (cfg && card->plt_of_node) {
+               cfg->dev = dev;
                cfg->irq_wifi = irq_of_parse_and_map(card->plt_of_node, 0);
                if (!cfg->irq_wifi) {
                        dev_dbg(dev,
@@ -130,6 +134,10 @@ static int mwifiex_sdio_probe_of(struct device *dev, 
struct sdio_mmc_card *card)
                }
        }
 
+       ret = device_init_wakeup(dev, true);
+       if (ret)
+               dev_err(dev, "fail to init wakeup for mwifiex");
+
        return 0;
 }
 
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.h 
b/drivers/net/wireless/marvell/mwifiex/sdio.h
index db837f1..07cdd23 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.h
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.h
@@ -155,6 +155,7 @@
 } while (0)
 
 struct mwifiex_plt_wake_cfg {
+       struct device *dev;
        int irq_wifi;
        bool wake_by_wifi;
 };
-- 
2.8.0.rc3.226.g39d4020