ptp: Fix error message on failed pin verification

[ Upstream commit 323a359f9b077f382f4483023d096a4d316fd135 ]

On failed verification of PTP clock pin, error message prints channel
number instead of pin index after "pin", which is incorrect.

Fix error message by adding channel number to the message and printing
pin number instead of channel number.

Fixes: 6092315dfd ("ptp: introduce programmable pins.")
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20240604120555.16643-1-karol.kolacinski@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit e468462fe0efdd233b6fd7b978e9911bb1eb8614)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>

drivers/ptp/ptp_chardev.c

@@ -97,7 +97,8 @@ int ptp_set_pinfunc(struct ptp_clock *ptp, unsigned int pin,
 	}
 
 	if (info->verify(info, pin, func, chan)) {
-		pr_err("driver cannot use function %u on pin %u\n", func, chan);
+		pr_err("driver cannot use function %u and channel %u on pin %u\n",
+		       func, chan, pin);
 		return -EOPNOTSUPP;
 	}