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Commit 039bdb14 authored by Eliad Peller's avatar Eliad Peller Committed by Luciano Coelho
Browse files

wl12xx_sdio: set MMC_PM_KEEP_POWER flag on suspend 



if a wow trigger was configured, set the MMC_PM_KEEP_POWER flag
on suspend, so our power will be kept while the system is suspended.

We needed to set this flag on each suspend attempt (when we want
to keep power)

Signed-off-by: default avatarEliad Peller <eliad@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
parent 402e4861

drivers/net/wireless/wl12xx/sdio.c

+28 −1
Original line number Diff line number Diff line
@@ -314,7 +314,34 @@ static int wl1271_suspend(struct device *dev) 
{

	/* Tell MMC/SDIO core it's OK to power down the card

	 * (if it isn't already), but not to remove it completely */

	return 0;

	struct sdio_func *func = dev_to_sdio_func(dev);

	struct wl1271 *wl = sdio_get_drvdata(func);

	mmc_pm_flag_t sdio_flags;

	int ret = 0;



	wl1271_debug(DEBUG_MAC80211, "wl1271 suspend. wow_enabled: %d",

		     wl->wow_enabled);



	/* check whether sdio should keep power */

	if (wl->wow_enabled) {

		sdio_flags = sdio_get_host_pm_caps(func);



		if (!(sdio_flags & MMC_PM_KEEP_POWER)) {

			wl1271_error("can't keep power while host "

				     "is suspended");

			ret = -EINVAL;

			goto out;

		}



		/* keep power while host suspended */

		ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);

		if (ret) {

			wl1271_error("error while trying to keep power");

			goto out;

		}

	}

out:

	return ret;

}



static int wl1271_resume(struct device *dev)