rtl8xxxu: Do BT_WLAN_CALIBRATION before doing IQK calibration
Newer generation chips require the firmware be notified before we
start the IQK calibration.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
index b42d71b..e0653b2 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
@@ -1497,7 +1497,7 @@
} while (retry--);
if (!retry) {
- dev_dbg(dev, "%s: Mailbox busy\n", __func__);
+ dev_info(dev, "%s: Mailbox busy\n", __func__);
retval = -EBUSY;
goto error;
}
@@ -3877,6 +3877,20 @@
}
}
+static void rtl8xxxu_prepare_calibrate(struct rtl8xxxu_priv *priv, u8 start)
+{
+ struct h2c_cmd h2c;
+
+ if (priv->fops->mbox_ext_width < 4)
+ return;
+
+ memset(&h2c, 0, sizeof(struct h2c_cmd));
+ h2c.bt_wlan_calibration.cmd = H2C_8723B_BT_WLAN_CALIBRATION;
+ h2c.bt_wlan_calibration.data = start;
+
+ rtl8723a_h2c_cmd(priv, &h2c, sizeof(h2c.bt_wlan_calibration));
+}
+
static void rtl8723a_phy_iq_calibrate(struct rtl8xxxu_priv *priv)
{
struct device *dev = &priv->udev->dev;
@@ -3888,6 +3902,8 @@
s32 reg_tmp = 0;
bool simu;
+ rtl8xxxu_prepare_calibrate(priv, 1);
+
memset(result, 0, sizeof(result));
candidate = -1;
@@ -3975,6 +3991,8 @@
rtl8xxxu_save_regs(priv, rtl8723au_iqk_phy_iq_bb_reg,
priv->bb_recovery_backup, RTL8XXXU_BB_REGS);
+
+ rtl8xxxu_prepare_calibrate(priv, 0);
}
static void rtl8723a_phy_lc_calibrate(struct rtl8xxxu_priv *priv)