scsi: ufs: Move ufshcd_get_max_pwr_mode() to ufshcd_device_params_init()

ufshcd_get_max_pwr_mode() only need to be called once while booting, take
it out from ufshcd_probe_hba() and inline into ufshcd_device_params_init().

Link: https://lore.kernel.org/r/20200120130820.1737-5-huobean@gmail.comReviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufshcd.c

@@ -6962,6 +6962,11 @@ static int ufshcd_device_params_init(struct ufs_hba *hba)
 			QUERY_FLAG_IDN_PWR_ON_WPE, &flag))
 		hba->dev_info.f_power_on_wp_en = flag;
 
+	/* Probe maximum power mode co-supported by both UFS host and device */
+	if (ufshcd_get_max_pwr_mode(hba))
+		dev_err(hba->dev,
+			"%s: Failed getting max supported power mode\n",
+			__func__);
 out:
 	return ret;
 }
@@ -7060,11 +7065,8 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
 	ufshcd_force_reset_auto_bkops(hba);
 	hba->wlun_dev_clr_ua = true;
 
-	if (ufshcd_get_max_pwr_mode(hba)) {
-		dev_err(hba->dev,
-			"%s: Failed getting max supported power mode\n",
-			__func__);
-	} else {
+	/* Gear up to HS gear if supported */
+	if (hba->max_pwr_info.is_valid) {
 		/*
 		 * Set the right value to bRefClkFreq before attempting to
 		 * switch to HS gears.