netdev - [PATCH] fec: Fix timer capture timing in `fec_ptp_enable

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Date:   Thu, 11 Aug 2022 12:13:49 +0200
From:   Csókás Bence <csokas.bence@...lan.hu>
To:     <netdev@...r.kernel.org>
CC:     Richard Cochran <richardcochran@...il.com>,
        Csókás Bence <csokas.bence@...lan.hu>
Subject: [PATCH] fec: Fix timer capture timing in `fec_ptp_enable_pps()`

Code reimplements functionality already in `fec_ptp_read()`,
but misses check for FEC_QUIRK_BUG_CAPTURE. Replace with function call.

Signed-off-by: Csókás Bence <csokas.bence@...lan.hu>
---
 drivers/net/ethernet/freescale/fec_ptp.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index 869d149efc53..11620e2a485c 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -139,11 +139,7 @@ static int fec_ptp_enable_pps(struct fec_enet_private *fep, uint enable)
 		 * NSEC_PER_SEC - ts.tv_nsec. Add the remaining nanoseconds
 		 * to current timer would be next second.
 		 */
-		tempval = readl(fep->hwp + FEC_ATIME_CTRL);
-		tempval |= FEC_T_CTRL_CAPTURE;
-		writel(tempval, fep->hwp + FEC_ATIME_CTRL);
-
-		tempval = readl(fep->hwp + FEC_ATIME);
+		tempval = fep->cc.read(&fep->cc);
 		/* Convert the ptp local counter to 1588 timestamp */
 		ns = timecounter_cyc2time(&fep->tc, tempval);
 		ts = ns_to_timespec64(ns);
-- 
2.25.1