net: phy: at803x: better describe debug regs

Give a name to known debug regs from Documentation instead of using
unknown hex values.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/at803x.c

@@ -86,12 +86,12 @@
 #define AT803X_PSSR				0x11	/*PHY-Specific Status Register*/
 #define AT803X_PSSR_MR_AN_COMPLETE		0x0200
 
-#define AT803X_DEBUG_REG_0			0x00
+#define AT803X_DEBUG_ANALOG_TEST_CTRL		0x00
 #define QCA8327_DEBUG_MANU_CTRL_EN		BIT(2)
 #define QCA8337_DEBUG_MANU_CTRL_EN		GENMASK(3, 2)
 #define AT803X_DEBUG_RX_CLK_DLY_EN		BIT(15)
 
-#define AT803X_DEBUG_REG_5			0x05
+#define AT803X_DEBUG_SYSTEM_CTRL_MODE		0x05
 #define AT803X_DEBUG_TX_CLK_DLY_EN		BIT(8)
 
 #define AT803X_DEBUG_REG_HIB_CTRL		0x0b
@@ -100,7 +100,7 @@
 
 #define AT803X_DEBUG_REG_3C			0x3C
 
-#define AT803X_DEBUG_REG_3D			0x3D
+#define AT803X_DEBUG_REG_GREEN			0x3D
 #define   AT803X_DEBUG_GATE_CLK_IN1000		BIT(6)
 
 #define AT803X_DEBUG_REG_1F			0x1F
@@ -285,25 +285,25 @@ static int at803x_read_page(struct phy_device *phydev)
 
 static int at803x_enable_rx_delay(struct phy_device *phydev)
 {
-	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_0, 0,
+	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_ANALOG_TEST_CTRL, 0,
 				     AT803X_DEBUG_RX_CLK_DLY_EN);
 }
 
 static int at803x_enable_tx_delay(struct phy_device *phydev)
 {
-	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_5, 0,
+	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_SYSTEM_CTRL_MODE, 0,
 				     AT803X_DEBUG_TX_CLK_DLY_EN);
 }
 
 static int at803x_disable_rx_delay(struct phy_device *phydev)
 {
-	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_0,
+	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_ANALOG_TEST_CTRL,
 				     AT803X_DEBUG_RX_CLK_DLY_EN, 0);
 }
 
 static int at803x_disable_tx_delay(struct phy_device *phydev)
 {
-	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_5,
+	return at803x_debug_reg_mask(phydev, AT803X_DEBUG_SYSTEM_CTRL_MODE,
 				     AT803X_DEBUG_TX_CLK_DLY_EN, 0);
 }
 
@@ -1303,9 +1303,9 @@ static int qca83xx_config_init(struct phy_device *phydev)
 	switch (switch_revision) {
 	case 1:
 		/* For 100M waveform */
-		at803x_debug_reg_write(phydev, AT803X_DEBUG_REG_0, 0x02ea);
+		at803x_debug_reg_write(phydev, AT803X_DEBUG_ANALOG_TEST_CTRL, 0x02ea);
 		/* Turn on Gigabit clock */
-		at803x_debug_reg_write(phydev, AT803X_DEBUG_REG_3D, 0x68a0);
+		at803x_debug_reg_write(phydev, AT803X_DEBUG_REG_GREEN, 0x68a0);
 		break;
 
 	case 2:
@@ -1313,8 +1313,8 @@ static int qca83xx_config_init(struct phy_device *phydev)
 		fallthrough;
 	case 4:
 		phy_write_mmd(phydev, MDIO_MMD_PCS, MDIO_AZ_DEBUG, 0x803f);
-		at803x_debug_reg_write(phydev, AT803X_DEBUG_REG_3D, 0x6860);
-		at803x_debug_reg_write(phydev, AT803X_DEBUG_REG_5, 0x2c46);
+		at803x_debug_reg_write(phydev, AT803X_DEBUG_REG_GREEN, 0x6860);
+		at803x_debug_reg_write(phydev, AT803X_DEBUG_SYSTEM_CTRL_MODE, 0x2c46);
 		at803x_debug_reg_write(phydev, AT803X_DEBUG_REG_3C, 0x6000);
 		break;
 	}
@@ -1325,7 +1325,7 @@ static int qca83xx_config_init(struct phy_device *phydev)
 	 */
 	if (phydev->drv->phy_id == QCA8327_A_PHY_ID ||
 	    phydev->drv->phy_id == QCA8327_B_PHY_ID)
-		at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_0,
+		at803x_debug_reg_mask(phydev, AT803X_DEBUG_ANALOG_TEST_CTRL,
 				      QCA8327_DEBUG_MANU_CTRL_EN, 0);
 
 	/* Following original QCA sourcecode set port to prefer master */
@@ -1343,12 +1343,12 @@ static void qca83xx_link_change_notify(struct phy_device *phydev)
 	/* Set DAC Amplitude adjustment to +6% for 100m on link running */
 	if (phydev->state == PHY_RUNNING) {
 		if (phydev->speed == SPEED_100)
-			at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_0,
+			at803x_debug_reg_mask(phydev, AT803X_DEBUG_ANALOG_TEST_CTRL,
 					      QCA8327_DEBUG_MANU_CTRL_EN,
 					      QCA8327_DEBUG_MANU_CTRL_EN);
 	} else {
 		/* Reset DAC Amplitude adjustment */
-		at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_0,
+		at803x_debug_reg_mask(phydev, AT803X_DEBUG_ANALOG_TEST_CTRL,
 				      QCA8327_DEBUG_MANU_CTRL_EN, 0);
 	}
 }
@@ -1395,7 +1395,7 @@ static int qca83xx_suspend(struct phy_device *phydev)
 		phy_modify(phydev, MII_BMCR, mask, 0);
 	}
 
-	at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_3D,
+	at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_GREEN,
 			      AT803X_DEBUG_GATE_CLK_IN1000, 0);
 
 	at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_HIB_CTRL,