[PATCH net 1/1] net: fec: fix the PTP periodic output sysfs interface

[Buday Csaba]

The PPS channel selection was incorrectly implemented in the orginal
commit (see fixes). The sysfs interface uses a logical channel index,
and rejects channel numbers greater than zero (n_per_out is 1).
See: period_store() in drivers/ptp/ptp_sysfs.c

On the other hand, the FEC PTP driver was expecting the hardware
channel number, making the periodic output unusable from the sysfs
interface, with the exception of channel 0.

Fix the FEC PTP driver to match the logical channel number of the
sysfs interface.

Fixes: bf8ca67e2167 ("net: fec: refactor PPS channel configuration")

Signed-off-by: Buday Csaba <buday.csaba@xxxxxxxxx>
---
 drivers/net/ethernet/freescale/fec_ptp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index 7f6b574320716..c1af81002b8fa 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -534,7 +534,7 @@ static int fec_ptp_enable(struct ptp_clock_info *ptp,
 		if (rq->perout.flags)
 			return -EOPNOTSUPP;
 
-		if (rq->perout.index != fep->pps_channel)
+		if (rq->perout.index != 0)
 			return -EOPNOTSUPP;
 
 		period.tv_sec = rq->perout.period.sec;
-- 
2.39.5