diff options
| author |   Richard Cochran <richardcochran@gmail.com> | 2019-11-14 10:45:02 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-15 12:48:32 -0800 |
| commit | 6138e687c7b679da08c0feb55a88f448f7890c07 (patch) | |
| tree | 5fa29b3639962a57b0b0e7e81690311ff2b06710 /drivers/net/phy | |
| parent | renesas: reject unsupported external timestamp flags (diff) | |
| download | linux-dev-6138e687c7b679da08c0feb55a88f448f7890c07.tar.xz linux-dev-6138e687c7b679da08c0feb55a88f448f7890c07.zip | |
ptp: Introduce strict checking of external time stamp options.
User space may request time stamps on rising edges, falling edges, or
both. However, the particular mode may or may not be supported in the
hardware or in the driver. This patch adds a "strict" flag that tells
drivers to ensure that the requested mode will be honored.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/dp83640.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index 2781b0e2d947..3bba2bea3a88 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -472,7 +472,8 @@ static int ptp_dp83640_enable(struct ptp_clock_info *ptp, /* Reject requests with unsupported flags */ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE | PTP_RISING_EDGE | - PTP_FALLING_EDGE)) + PTP_FALLING_EDGE | + PTP_STRICT_FLAGS)) return -EOPNOTSUPP; index = rq->extts.index; if (index >= N_EXT_TS) |