1 files changed, 20 insertions, 5 deletions

diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index bbf06cfe5898..3bea17b9405a 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -653,19 +653,25 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 
 	data->id_det_gpio = devm_gpiod_get_optional(dev, "usb0_id_det",
 						    GPIOD_IN);
-	if (IS_ERR(data->id_det_gpio))
+	if (IS_ERR(data->id_det_gpio)) {
+		dev_err(dev, "Couldn't request ID GPIO\n");
 		return PTR_ERR(data->id_det_gpio);
+	}
 
 	data->vbus_det_gpio = devm_gpiod_get_optional(dev, "usb0_vbus_det",
 						      GPIOD_IN);
-	if (IS_ERR(data->vbus_det_gpio))
+	if (IS_ERR(data->vbus_det_gpio)) {
+		dev_err(dev, "Couldn't request VBUS detect GPIO\n");
 		return PTR_ERR(data->vbus_det_gpio);
+	}
 
 	if (of_find_property(np, "usb0_vbus_power-supply", NULL)) {
 		data->vbus_power_supply = devm_power_supply_get_by_phandle(dev,
 						     "usb0_vbus_power-supply");
-		if (IS_ERR(data->vbus_power_supply))
+		if (IS_ERR(data->vbus_power_supply)) {
+			dev_err(dev, "Couldn't get the VBUS power supply\n");
 			return PTR_ERR(data->vbus_power_supply);
+		}
 
 		if (!data->vbus_power_supply)
 			return -EPROBE_DEFER;
@@ -674,8 +680,10 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 	data->dr_mode = of_usb_get_dr_mode_by_phy(np, 0);
 
 	data->extcon = devm_extcon_dev_allocate(dev, sun4i_usb_phy0_cable);
-	if (IS_ERR(data->extcon))
+	if (IS_ERR(data->extcon)) {
+		dev_err(dev, "Couldn't allocate our extcon device\n");
 		return PTR_ERR(data->extcon);
+	}
 
 	ret = devm_extcon_dev_register(dev, data->extcon);
 	if (ret) {
@@ -690,8 +698,13 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 		snprintf(name, sizeof(name), "usb%d_vbus", i);
 		phy->vbus = devm_regulator_get_optional(dev, name);
 		if (IS_ERR(phy->vbus)) {
-			if (PTR_ERR(phy->vbus) == -EPROBE_DEFER)
+			if (PTR_ERR(phy->vbus) == -EPROBE_DEFER) {
+				dev_err(dev,
+					"Couldn't get regulator %s... Deferring probe\n",
+					name);
 				return -EPROBE_DEFER;
+			}
+
 			phy->vbus = NULL;
 		}
 
@@ -775,6 +788,8 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 		return PTR_ERR(phy_provider);
 	}
 
+	dev_dbg(dev, "successfully loaded\n");
+
 	return 0;
 }