rtl8xxxu: Do not use hard-wired RF enable settings for 8723bu

These settings simply block the 8723bu, for now leave an empty
function.

With this change we can finally communicate with aliens using the
8723bu!
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c

@@ -1596,6 +1596,10 @@ static void rtl8723a_enable_rf(struct rtl8xxxu_priv *priv)
 	rtl8xxxu_write8(priv, REG_TXPAUSE, 0x00);
 }
 
+static void rtl8723b_enable_rf(struct rtl8xxxu_priv *priv)
+{
+}
+
 static void rtl8723a_disable_rf(struct rtl8xxxu_priv *priv)
 {
 	u8 sps0;
@@ -7665,7 +7669,7 @@ static int rtl8xxxu_start(struct ieee80211_hw *hw)
 	init_usb_anchor(&priv->tx_anchor);
 	init_usb_anchor(&priv->int_anchor);
 
-	rtl8723a_enable_rf(priv);
+	priv->fops->enable_rf(priv);
 	if (priv->usb_interrupts) {
 		ret = rtl8xxxu_submit_int_urb(hw);
 		if (ret)
@@ -8031,6 +8035,7 @@ static struct rtl8xxxu_fileops rtl8723au_fops = {
 	.phy_iq_calibrate = rtl8723au_phy_iq_calibrate,
 	.config_channel = rtl8723au_config_channel,
 	.parse_rx_desc = rtl8723au_parse_rx_desc,
+	.enable_rf = rtl8723a_enable_rf,
 	.writeN_block_size = 1024,
 	.mbox_ext_reg = REG_HMBOX_EXT_0,
 	.mbox_ext_width = 2,
@@ -8052,6 +8057,7 @@ static struct rtl8xxxu_fileops rtl8723bu_fops = {
 	.parse_rx_desc = rtl8723bu_parse_rx_desc,
 	.init_aggregation = rtl8723bu_init_aggregation,
 	.init_statistics = rtl8723bu_init_statistics,
+	.enable_rf = rtl8723b_enable_rf,
 	.writeN_block_size = 1024,
 	.mbox_ext_reg = REG_HMBOX_EXT0_8723B,
 	.mbox_ext_width = 4,
@@ -8072,6 +8078,7 @@ static struct rtl8xxxu_fileops rtl8192cu_fops = {
 	.phy_iq_calibrate = rtl8723au_phy_iq_calibrate,
 	.config_channel = rtl8723au_config_channel,
 	.parse_rx_desc = rtl8723au_parse_rx_desc,
+	.enable_rf = rtl8723a_enable_rf,
 	.writeN_block_size = 128,
 	.mbox_ext_reg = REG_HMBOX_EXT_0,
 	.mbox_ext_width = 2,
@@ -8091,6 +8098,7 @@ static struct rtl8xxxu_fileops rtl8192eu_fops = {
 	.phy_iq_calibrate = rtl8723bu_phy_iq_calibrate,
 	.config_channel = rtl8723bu_config_channel,
 	.parse_rx_desc = rtl8723bu_parse_rx_desc,
+	.enable_rf = rtl8723b_enable_rf,
 	.writeN_block_size = 128,
 	.mbox_ext_reg = REG_HMBOX_EXT0_8723B,
 	.mbox_ext_width = 4,

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h

@@ -1135,6 +1135,7 @@ struct rtl8xxxu_fileops {
 			      struct ieee80211_rx_status *rx_status);
 	void (*init_aggregation) (struct rtl8xxxu_priv *priv);
 	void (*init_statistics) (struct rtl8xxxu_priv *priv);
+	void (*enable_rf) (struct rtl8xxxu_priv *priv);
 	int writeN_block_size;
 	u16 mbox_ext_reg;
 	char mbox_ext_width;