mlxsw: spectrum_ptp: Rename mlxsw_sp1_ptp_phc_adjfreq()

The function mlxsw_sp_ptp_phc_adjfreq() configures MTUTC register to adjust
hardware frequency by a given value.

This configuration will be same for Spectrum-2. In preparation for
Spectrum-2 PTP support, rename the function to not be Spectrum-1 specific.
Later, it will be used for Spectrum-2 also.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c

@@ -122,7 +122,7 @@ static u64 mlxsw_sp1_ptp_read_frc(const struct cyclecounter *cc)
 }
 
 static int
-mlxsw_sp1_ptp_phc_adjfreq(struct mlxsw_sp_ptp_clock *clock, int freq_adj)
+mlxsw_sp_ptp_phc_adjfreq(struct mlxsw_sp_ptp_clock *clock, int freq_adj)
 {
 	struct mlxsw_core *mlxsw_core = clock->core;
 	char mtutc_pl[MLXSW_REG_MTUTC_LEN];
@@ -194,7 +194,7 @@ static int mlxsw_sp1_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm)
 				       clock->nominal_c_mult + diff;
 	spin_unlock_bh(&clock->lock);
 
-	return mlxsw_sp1_ptp_phc_adjfreq(&clock->common, neg_adj ? -ppb : ppb);
+	return mlxsw_sp_ptp_phc_adjfreq(&clock->common, neg_adj ? -ppb : ppb);
 }
 
 static int mlxsw_sp1_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)