[PATCH net-next 1/3] net: phy: motorcomm: Split yt8521_config_init() page management

[Maxime Chevallier]

In preparation for separate .config_init() implementations for YT8521
and YT8531S, let's split the yt8521_config_init() into a high-level
helper that deals with page handling, and another one that implements
the logic. This will ease splitting the YT8531S-specific logic out.

Signed-off-by: Maxime Chevallier <maxime.chevallier at bootlin.com>
---
 drivers/net/phy/motorcomm.c | 38 ++++++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 15 deletions(-)

diff --git a/drivers/net/phy/motorcomm.c b/drivers/net/phy/motorcomm.c
index c5a2cda8d31b..58e4d67b945f 100644
--- a/drivers/net/phy/motorcomm.c
+++ b/drivers/net/phy/motorcomm.c
@@ -1680,27 +1680,16 @@ static int yt8521_resume(struct phy_device *phydev)
 	return yt8521_modify_utp_fiber_bmcr(phydev, BMCR_PDOWN, 0);
 }
 
-/**
- * yt8521_config_init() - called to initialize the PHY
- * @phydev: a pointer to a &struct phy_device
- *
- * returns 0 or negative errno code
- */
-static int yt8521_config_init(struct phy_device *phydev)
+static int __yt8521_config_init(struct phy_device *phydev)
 {
 	struct device *dev = &phydev->mdio.dev;
-	int old_page;
 	int ret = 0;
 
-	old_page = phy_select_page(phydev, YT8521_RSSR_UTP_SPACE);
-	if (old_page < 0)
-		goto err_restore_page;
-
 	/* set rgmii delay mode */
 	if (phydev->interface != PHY_INTERFACE_MODE_SGMII) {
 		ret = ytphy_rgmii_clk_delay_config(phydev);
 		if (ret < 0)
-			goto err_restore_page;
+			return ret;
 	}
 
 	if (device_property_read_bool(dev, "motorcomm,auto-sleep-disabled")) {
@@ -1708,7 +1697,7 @@ static int yt8521_config_init(struct phy_device *phydev)
 		ret = ytphy_modify_ext(phydev, YT8521_EXTREG_SLEEP_CONTROL1_REG,
 				       YT8521_ESC1R_SLEEP_SW, 0);
 		if (ret < 0)
-			goto err_restore_page;
+			return ret;
 	}
 
 	if (device_property_read_bool(dev, "motorcomm,keep-pll-enabled")) {
@@ -1716,13 +1705,32 @@ static int yt8521_config_init(struct phy_device *phydev)
 		ret = ytphy_modify_ext(phydev, YT8521_CLOCK_GATING_REG,
 				       YT8521_CGR_RX_CLK_EN, 0);
 		if (ret < 0)
-			goto err_restore_page;
+			return ret;
 	}
 
 	if (phy_interface_is_rgmii(phydev) &&
 	    phydev_id_compare(phydev, PHY_ID_YT8531S))
 		ret = yt8531_set_ds(phydev);
 
+	return ret;
+}
+
+/**
+ * yt8521_config_init() - called to initialize the PHY
+ * @phydev: a pointer to a &struct phy_device
+ *
+ * returns 0 or negative errno code
+ */
+static int yt8521_config_init(struct phy_device *phydev)
+{
+	int old_page, ret = 0;
+
+	old_page = phy_select_page(phydev, YT8521_RSSR_UTP_SPACE);
+	if (old_page < 0)
+		goto err_restore_page;
+
+	ret = __yt8521_config_init(phydev);
+
 err_restore_page:
 	return phy_restore_page(phydev, old_page, ret);
 }
-- 
2.55.0