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mwifiex: report wakeup for wowlan 

Register the WLAN device as a wakeup source since it can
wake the system via wake-on-wireless-lan. In an actual wowlan
event, notify the PM core that we are the current wakeup source.
This allows the PM core to update the wakeup attributes in /sys.

This was causing wakeup issues on chromeos as the system was
apparently confused about the wakeup source.

Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Signed-off-by: Rajat Jain <rajatja@google.com>
Tested-by: Wei-Ning Huang <wnhuang@chromium.org>
Reviewed-by: Eric Caruso <ejcaruso@chromium.org>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Rajat Jain 2016-10-04 13:37:42 -07:00 committed by Kalle Valo
parent e7ee74b56f
commit df566a481e
2 changed files with 9 additions and 0 deletions
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8
drivers/net/wireless/marvell/mwifiex/sdio.c
View File

@ -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,
@ -132,6 +136,10 @@ 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;
}

1
drivers/net/wireless/marvell/mwifiex/sdio.h
View File

@ -155,6 +155,7 @@
} while (0)
struct mwifiex_plt_wake_cfg {
struct device *dev;
int irq_wifi;
bool wake_by_wifi;
};