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authorVladimir Oltean <olteanv@gmail.com>2019-12-27 03:03:54 +0200
committerDavid S. Miller <davem@davemloft.net>2019-12-30 20:13:11 -0800
commitd00bdc0a8839de9a5c9be5af2a79dbf8e0087689 (patch)
tree26c6c6a7419b10d6b1f5ce390bba3949f1ea6170 /Documentation
parent5a47f588ee2366b2febdc822cdfdcf856cb0a777 (diff)
downloadlinux-d00bdc0a8839de9a5c9be5af2a79dbf8e0087689.tar.bz2
net: dsa: sja1105: Remove restriction of zero base-time for taprio offload
The check originates from the initial implementation which was not based on PTP time but on a standalone clock source. In the meantime we can now program the PTPSCHTM register at runtime with the dynamic base time (actually with a value that is 200 ns smaller, to avoid writing DELTA=0 in the Schedule Entry Points Parameters Table). And we also have logic for moving the actual base time in the future of the PHC's current time base, so the check for zero serves no purpose, since even if the user will specify zero, that's not what will end up in the static config table where the limitation is. Fixes: 86db36a347b4 ("net: dsa: sja1105: Implement state machine for TAS with PTP clock source") Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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