ice: Fix E825 initialization

Current implementation checks revision of all PHYs on all PFs, which is
incorrect and may result in initialization failure. Check only the
revision of the current PHY.

Fixes: 7cab44f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

Author: Karol Kolacinski

drivers/net/ethernet/intel/ice/ice_ptp_hw.c

@@ -2687,14 +2687,15 @@ static bool ice_is_muxed_topo(struct ice_hw *hw)
 }
 
 /**
- * ice_ptp_init_phy_e825c - initialize PHY parameters
+ * ice_ptp_init_phy_e825 - initialize PHY parameters
  * @hw: pointer to the HW struct
  */
-static void ice_ptp_init_phy_e825c(struct ice_hw *hw)
+static void ice_ptp_init_phy_e825(struct ice_hw *hw)
 {
 	struct ice_ptp_hw *ptp = &hw->ptp;
 	struct ice_eth56g_params *params;
-	u8 phy;
+	u32 phy_rev;
+	int err;
 
 	ptp->phy_model = ICE_PHY_ETH56G;
 	params = &ptp->phy.eth56g;
@@ -2708,15 +2709,10 @@ static void ice_ptp_init_phy_e825c(struct ice_hw *hw)
 	ptp->num_lports = params->num_phys * ptp->ports_per_phy;
 
 	ice_sb_access_ena_eth56g(hw, true);
-	for (phy = 0; phy < params->num_phys; phy++) {
-		u32 phy_rev;
-		int err;
-
-		err = ice_read_phy_eth56g(hw, phy, PHY_REG_REVISION, &phy_rev);
-		if (err || phy_rev != PHY_REVISION_ETH56G) {
-			ptp->phy_model = ICE_PHY_UNSUP;
-			return;
-		}
+	err = ice_read_phy_eth56g(hw, hw->pf_id, PHY_REG_REVISION, &phy_rev);
+	if (err || phy_rev != PHY_REVISION_ETH56G) {
+		ptp->phy_model = ICE_PHY_UNSUP;
+		return;
 	}
 
 	ptp->is_2x50g_muxed_topo = ice_is_muxed_topo(hw);
@@ -5478,7 +5474,7 @@ void ice_ptp_init_hw(struct ice_hw *hw)
 	else if (ice_is_e810(hw))
 		ice_ptp_init_phy_e810(ptp);
 	else if (ice_is_e825c(hw))
-		ice_ptp_init_phy_e825c(hw);
+		ice_ptp_init_phy_e825(hw);
 	else
 		ptp->phy_model = ICE_PHY_UNSUP;
 }