[PATCH v2 02/10] rtlwifi: fix scan channel 1 fail after IPS

[<pkshih@realtek.com>]

From: Ping-Ke Shih <pkshih@realtek.com>

If there is no connection, driver will enter IPS state. Meanwhile, it
fails to scan channel 1 by the command 'iw dev wlan0 scan freq 2412',
because hardware channel setting lose after IPS. Thus, restore channel
setting from hw->conf.channel set by last rtl_op_config().

Signed-off-by: Tim Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtlwifi/ps.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/ps.c b/drivers/net/wireless/realtek/rtlwifi/ps.c
index 6a4008845f49..71af24e2e051 100644
--- a/drivers/net/wireless/realtek/rtlwifi/ps.c
+++ b/drivers/net/wireless/realtek/rtlwifi/ps.c
@@ -51,6 +51,11 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
 			&rtlmac->retry_long);
 	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
 
+	rtlpriv->cfg->ops->switch_channel(hw);
+	rtlpriv->cfg->ops->set_channel_access(hw);
+	rtlpriv->cfg->ops->set_bw_mode(hw,
+			cfg80211_get_chandef_type(&hw->conf.chandef));
+
 	/*<3> Enable Interrupt */
 	rtlpriv->cfg->ops->enable_interrupt(hw);
 
-- 
2.15.1