Commit 72df7a72 authored by Stefan Sørensen's avatar Stefan Sørensen Committed by David S. Miller

ptp: Allow reassigning calibration pin function

The ptp pin function programming does not allow calibration pin to change
function. This is problematic on hardware that uses the default calibration
pin for other purposes.

Removing this limitation does not impact calibration if userspace does not
reprogram the calibration pin.
Signed-off-by: default avatarStefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e0155950
......@@ -86,17 +86,12 @@ int ptp_set_pinfunc(struct ptp_clock *ptp, unsigned int pin,
return -EINVAL;
break;
case PTP_PF_PHYSYNC:
pr_err("sorry, cannot reassign the calibration pin\n");
return -EINVAL;
if (chan != 0)
return -EINVAL;
default:
return -EINVAL;
}
if (pin2->func == PTP_PF_PHYSYNC) {
pr_err("sorry, cannot reprogram the calibration pin\n");
return -EINVAL;
}
if (info->verify(info, pin, func, chan)) {
pr_err("driver cannot use function %u on pin %u\n", func, chan);
return -EOPNOTSUPP;
......
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