Searched hist:c67ce71d5328671d471daaf3c12e31a1c7523e2e (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/net/ethernet/ti/icssg/ |
| H A D | icssg_prueth.h | diff c67ce71d5328671d471daaf3c12e31a1c7523e2e Mon Nov 11 03:58:42 CST 2024 Meghana Malladi <m-malladi@ti.com> net: ti: icssg-prueth: Fix 1 PPS sync
[ Upstream commit dc065076ee7768377d7c16af7d1b0767782d8c98 ]
The first PPS latch time needs to be calculated by the driver
(in rounded off seconds) and configured as the start time
offset for the cycle. After synchronizing two PTP clocks
running as master/slave, missing this would cause master
and slave to start immediately with some milliseconds
drift which causes the PPS signal to never synchronize with
the PTP master.
Fixes: 186734c15886 ("net: ti: icssg-prueth: add packet timestamping and ptp support")
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://patch.msgid.link/20241111095842.478833-1-m-malladi@ti.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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| H A D | icssg_prueth.c | diff c67ce71d5328671d471daaf3c12e31a1c7523e2e Mon Nov 11 03:58:42 CST 2024 Meghana Malladi <m-malladi@ti.com> net: ti: icssg-prueth: Fix 1 PPS sync
[ Upstream commit dc065076ee7768377d7c16af7d1b0767782d8c98 ]
The first PPS latch time needs to be calculated by the driver
(in rounded off seconds) and configured as the start time
offset for the cycle. After synchronizing two PTP clocks
running as master/slave, missing this would cause master
and slave to start immediately with some milliseconds
drift which causes the PPS signal to never synchronize with
the PTP master.
Fixes: 186734c15886 ("net: ti: icssg-prueth: add packet timestamping and ptp support")
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://patch.msgid.link/20241111095842.478833-1-m-malladi@ti.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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