6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Csókás, Bence <csokas.bence@xxxxxxxxx>
[ Upstream commit 8fee6d5ad5fa18c270eedb2a2cdf58dbadefb94b ]
PPS was not stopped in `fec_ptp_stop()`, called when
the adapter was removed. Consequentially, you couldn't
safely reload the driver with the PPS signal on.
Fixes: 32cba57ba74b ("net: fec: introduce fec_ptp_stop and use in probe fail path")
Reviewed-by: Fabio Estevam <festevam@xxxxxxxxx>
Link: https://lore.kernel.org/netdev/CAOMZO5BzcZR8PwKKwBssQq_wAGzVgf1ffwe_nhpQJjviTdxy-w@xxxxxxxxxxxxxx/T/#m01dcb810bfc451a492140f6797ca77443d0cb79f
Signed-off-by: Csókás, Bence <csokas.bence@xxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
Link: https://patch.msgid.link/20240807080956.2556602-1-csokas.bence@xxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/freescale/fec_ptp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index e32f6724f5681..2e4f3e1782a25 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -775,6 +775,9 @@ void fec_ptp_stop(struct platform_device *pdev)
struct net_device *ndev = platform_get_drvdata(pdev);
struct fec_enet_private *fep = netdev_priv(ndev);
+ if (fep->pps_enable)
+ fec_ptp_enable_pps(fep, 0);
+
cancel_delayed_work_sync(&fep->time_keep);
hrtimer_cancel(&fep->perout_timer);
if (fep->ptp_clock)
--
2.43.0
