net: phy: dp83867: Fix various styling and space issues

Fix spacing issues reported for misaligned switch..case and extra new
lines.

Also updated the file header to comply with networking commet style.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDan Murphy <dmurphy@ti.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/phy/dp83867.c

 // SPDX-License-Identifier: GPL-2.0
-/*
- * Driver for the Texas Instruments DP83867 PHY
+/* Driver for the Texas Instruments DP83867 PHY
  *
  * Copyright (C) 2015 Texas Instruments Inc.
  */
@@ -113,7 +112,6 @@
 #define DP83867_RGMII_RX_CLK_DELAY_SHIFT	0
 #define DP83867_RGMII_RX_CLK_DELAY_INV	(DP83867_RGMII_RX_CLK_DELAY_MAX + 1)
 
-
 /* IO_MUX_CFG bits */
 #define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MASK	0x1f
 #define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MAX	0x0
@@ -384,22 +382,22 @@ static int dp83867_set_downshift(struct phy_device *phydev, u8 cnt)
 				      DP83867_DOWNSHIFT_EN);
 
 	switch (cnt) {
-		case DP83867_DOWNSHIFT_1_COUNT:
-			count = DP83867_DOWNSHIFT_1_COUNT_VAL;
-			break;
-		case DP83867_DOWNSHIFT_2_COUNT:
-			count = DP83867_DOWNSHIFT_2_COUNT_VAL;
-			break;
-		case DP83867_DOWNSHIFT_4_COUNT:
-			count = DP83867_DOWNSHIFT_4_COUNT_VAL;
-			break;
-		case DP83867_DOWNSHIFT_8_COUNT:
-			count = DP83867_DOWNSHIFT_8_COUNT_VAL;
-			break;
-		default:
-			phydev_err(phydev,
-				   "Downshift count must be 1, 2, 4 or 8\n");
-			return -EINVAL;
+	case DP83867_DOWNSHIFT_1_COUNT:
+		count = DP83867_DOWNSHIFT_1_COUNT_VAL;
+		break;
+	case DP83867_DOWNSHIFT_2_COUNT:
+		count = DP83867_DOWNSHIFT_2_COUNT_VAL;
+		break;
+	case DP83867_DOWNSHIFT_4_COUNT:
+		count = DP83867_DOWNSHIFT_4_COUNT_VAL;
+		break;
+	case DP83867_DOWNSHIFT_8_COUNT:
+		count = DP83867_DOWNSHIFT_8_COUNT_VAL;
+		break;
+	default:
+		phydev_err(phydev,
+			   "Downshift count must be 1, 2, 4 or 8\n");
+		return -EINVAL;
 	}
 
 	val = DP83867_DOWNSHIFT_EN;
@@ -411,7 +409,7 @@ static int dp83867_set_downshift(struct phy_device *phydev, u8 cnt)
 }
 
 static int dp83867_get_tunable(struct phy_device *phydev,
-				struct ethtool_tunable *tuna, void *data)
+			       struct ethtool_tunable *tuna, void *data)
 {
 	switch (tuna->id) {
 	case ETHTOOL_PHY_DOWNSHIFT:
@@ -422,7 +420,7 @@ static int dp83867_get_tunable(struct phy_device *phydev,
 }
 
 static int dp83867_set_tunable(struct phy_device *phydev,
-				struct ethtool_tunable *tuna, const void *data)
+			       struct ethtool_tunable *tuna, const void *data)
 {
 	switch (tuna->id) {
 	case ETHTOOL_PHY_DOWNSHIFT:
@@ -524,11 +522,10 @@ static int dp83867_of_init(struct phy_device *phydev)
 		dp83867->io_impedance = -1; /* leave at default */
 
 	dp83867->rxctrl_strap_quirk = of_property_read_bool(of_node,
-					"ti,dp83867-rxctrl-strap-quirk");
+							    "ti,dp83867-rxctrl-strap-quirk");
 
 	dp83867->sgmii_ref_clk_en = of_property_read_bool(of_node,
-					"ti,sgmii-ref-clock-output-enable");
-
+							  "ti,sgmii-ref-clock-output-enable");
 
 	dp83867->rx_id_delay = DP83867_RGMII_RX_CLK_DELAY_INV;
 	ret = of_property_read_u32(of_node, "ti,rx-internal-delay",