rtlwifi: rtl8192cu: Fix performance issue.

After physical reconnect, the rtl8192cu chipset shows low
transmission rates.It cause is that variable "iqk_initialized"
do not de-initialized. So I add this code.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
index 1898596..6a4ef05 100644 (file)
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
@@ -987,7 +987,6 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw)
        struct rtl_phy *rtlphy = &(rtlpriv->phy);
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
        int err = 0;
-       static bool iqk_initialized;
        unsigned long flags;
 
        /* As this function can take a very long time (up to 350 ms)
@@ -1038,11 +1037,11 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw)
        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
        if (ppsc->rfpwr_state == ERFON) {
                rtl92c_phy_set_rfpath_switch(hw, 1);
-               if (iqk_initialized) {
+               if (rtlphy->iqk_initialized) {
                        rtl92c_phy_iq_calibrate(hw, true);
                } else {
                        rtl92c_phy_iq_calibrate(hw, false);
-                       iqk_initialized = true;
+                       rtlphy->iqk_initialized = true;
                }
                rtl92c_dm_check_txpower_tracking(hw);
                rtl92c_phy_lc_calibrate(hw);
@@ -1391,6 +1390,9 @@ void rtl92cu_card_disable(struct ieee80211_hw *hw)
                _CardDisableHWSM(hw);
        else
                _CardDisableWithoutHWSM(hw);
+
+       /* after power off we should do iqk again */
+       rtlpriv->phy.iqk_initialized = false;
 }
 
 void rtl92cu_set_check_bssid(struct ieee80211_hw *hw, bool check_bssid)