[PATCH v3 4/4] net: phy: ksz90x1: Simplify ksz9131_config_rgmii_delay

[Paul Barker]

We can call phy_modify_mmd() instead of manually calling drv->readext()
and drv->writeext().

Reviewed-by: Marek Vasut <marek.vasut+rene...@mailbox.org>
Signed-off-by: Paul Barker <paul.barker...@bp.renesas.com>
---
Changes v2->v3:
  - Added Marek's Reviewed-by tag.
Changes v1->v2:
  - Split out of series adding RZ/G2L Ethernet support [1]

 drivers/net/phy/micrel_ksz90x1.c | 26 ++++++++------------------
 1 file changed, 8 insertions(+), 18 deletions(-)

diff --git a/drivers/net/phy/micrel_ksz90x1.c b/drivers/net/phy/micrel_ksz90x1.c
index 727c416fb255..ee8eae1efd92 100644
--- a/drivers/net/phy/micrel_ksz90x1.c
+++ b/drivers/net/phy/micrel_ksz90x1.c
@@ -508,8 +508,7 @@ static int ksz9131_of_load_all_skew_values(struct 
phy_device *phydev)
 
 static int ksz9131_config_rgmii_delay(struct phy_device *phydev)
 {
-       struct phy_driver *drv = phydev->drv;
-       u16 rxcdll_val, txcdll_val, val;
+       u16 rxcdll_val, txcdll_val;
        int ret;
 
        switch (phydev->interface) {
@@ -533,24 +532,15 @@ static int ksz9131_config_rgmii_delay(struct phy_device 
*phydev)
                return 0;
        }
 
-       val = drv->readext(phydev, 0, KSZ9131RN_MMD_COMMON_CTRL_REG,
-                          KSZ9131RN_RXC_DLL_CTRL);
-       val &= ~KSZ9131RN_DLL_CTRL_BYPASS;
-       val |= rxcdll_val;
-       ret = drv->writeext(phydev, 0, KSZ9131RN_MMD_COMMON_CTRL_REG,
-                           KSZ9131RN_RXC_DLL_CTRL, val);
-       if (ret)
+       ret = phy_modify_mmd(phydev, KSZ9131RN_MMD_COMMON_CTRL_REG,
+                            KSZ9131RN_RXC_DLL_CTRL, KSZ9131RN_DLL_CTRL_BYPASS,
+                            rxcdll_val);
+       if (ret < 0)
                return ret;
 
-       val = drv->readext(phydev, 0, KSZ9131RN_MMD_COMMON_CTRL_REG,
-                          KSZ9131RN_TXC_DLL_CTRL);
-
-       val &= ~KSZ9131RN_DLL_CTRL_BYPASS;
-       val |= txcdll_val;
-       ret = drv->writeext(phydev, 0, KSZ9131RN_MMD_COMMON_CTRL_REG,
-                           KSZ9131RN_TXC_DLL_CTRL, val);
-
-       return ret;
+       return phy_modify_mmd(phydev, KSZ9131RN_MMD_COMMON_CTRL_REG,
+                             KSZ9131RN_TXC_DLL_CTRL, KSZ9131RN_DLL_CTRL_BYPASS,
+                             txcdll_val);
 }
 
 /* Silicon Errata DS80000693B
-- 
2.43.0