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Commit 063848c3 authored by Karun Eagalapati's avatar Karun Eagalapati Committed by Kalle Valo
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rsi: sdio: Add WOWLAN support for S5 shutdown state 



Unlike other power states, WoWLAN configuration does not come from
mac80211 for shutdown. Hence configuring the WoWLAN from shut down
callback it self. Remaining steps of disabling SDIO interrupts,
setting 'MMC_PM_KEEP_POWER' flag are same as other power states.

Signed-off-by: default avatarKarun Eagalapati <karun256@gmail.com>
Signed-off-by: default avatarAmitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent b6c8d06c

drivers/net/wireless/rsi/rsi_91x_mac80211.c

+1 −0
Original line number Diff line number Diff line
@@ -1822,6 +1822,7 @@ int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan) 


	return 0;

}

EXPORT_SYMBOL(rsi_config_wowlan);



#ifdef CONFIG_PM

static int rsi_mac80211_suspend(struct ieee80211_hw *hw,

drivers/net/wireless/rsi/rsi_91x_sdio.c

+27 −4
Original line number Diff line number Diff line
@@ -1218,12 +1218,11 @@ static int rsi_freeze(struct device *dev) 
	common = adapter->priv;

	sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;



#ifdef CONFIG_RSI_WOW

	if ((common->wow_flags & RSI_WOW_ENABLED) &&

	    (common->wow_flags & RSI_WOW_NO_CONNECTION))

		rsi_dbg(ERR_ZONE,

			"##### Device can not wake up through WLAN\n");

#endif



	ret = rsi_sdio_disable_interrupts(pfunction);



	if (sdev->write_fail)
@@ -1257,6 +1256,31 @@ static int rsi_thaw(struct device *dev) 
	return 0;

}



static void rsi_shutdown(struct device *dev)

{

	struct sdio_func *pfunction = dev_to_sdio_func(dev);

	struct rsi_hw *adapter = sdio_get_drvdata(pfunction);

	struct rsi_91x_sdiodev *sdev =

		(struct rsi_91x_sdiodev *)adapter->rsi_dev;

	struct ieee80211_hw *hw = adapter->hw;

	struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;



	rsi_dbg(ERR_ZONE, "SDIO Bus shutdown =====>\n");



	if (rsi_config_wowlan(adapter, wowlan))

		rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n");



	rsi_sdio_disable_interrupts(sdev->pfunction);



	if (sdev->write_fail)

		rsi_dbg(INFO_ZONE, "###### Device is not ready #######\n");



	if (rsi_set_sdio_pm_caps(adapter))

		rsi_dbg(INFO_ZONE, "Setting power management caps failed\n");



	rsi_dbg(INFO_ZONE, "***** RSI module shut down *****\n");

}



int rsi_sdio_reinit_device(struct rsi_hw *adapter)

{

	struct rsi_91x_sdiodev *sdev = adapter->rsi_dev;
@@ -1297,9 +1321,7 @@ static int rsi_restore(struct device *dev) 
	adapter->sc_nvifs = 0;

	ieee80211_restart_hw(adapter->hw);



#ifdef CONFIG_RSI_WOW

	common->wow_flags = 0;

#endif

	common->iface_down = false;



	rsi_dbg(INFO_ZONE, "RSI module restored\n");
@@ -1331,6 +1353,7 @@ static struct sdio_driver rsi_driver = { 
#ifdef CONFIG_PM

	.drv = {

		.pm = &rsi_pm_ops,

		.shutdown   = rsi_shutdown,

	}

#endif

};