summaryrefslogtreecommitdiff
path: root/drivers/net/dsa
diff options
context:
space:
mode:
authorRichard Cochran <richardcochran@gmail.com>2019-11-14 21:45:02 +0300
committerDavid S. Miller <davem@davemloft.net>2019-11-15 23:48:32 +0300
commit6138e687c7b679da08c0feb55a88f448f7890c07 (patch)
tree5fa29b3639962a57b0b0e7e81690311ff2b06710 /drivers/net/dsa
parent592025a03b34927f35852058c933ffcd7c500321 (diff)
downloadlinux-6138e687c7b679da08c0feb55a88f448f7890c07.tar.xz
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/dsa')
-rw-r--r--drivers/net/dsa/mv88e6xxx/ptp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/ptp.c b/drivers/net/dsa/mv88e6xxx/ptp.c
index 076e622a64d6..3b1985902f95 100644
--- a/drivers/net/dsa/mv88e6xxx/ptp.c
+++ b/drivers/net/dsa/mv88e6xxx/ptp.c
@@ -276,7 +276,8 @@ static int mv88e6352_ptp_enable_extts(struct mv88e6xxx_chip *chip,
/* 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;
pin = ptp_find_pin(chip->ptp_clock, PTP_PF_EXTTS, rq->extts.index);