net: dsa: microchip: fully save the periodic output request

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When a periodic output is initialized, its period and start time are
stored to initialize it back in case of restart. These information
aren't enough if the request contains flags or targets a pin that isn't
the first output of the switch. At restarts, these two arguments are
always set to 0.

The 'flag issue' isn't concrete so far because the driver doesn't
advertise any .supported_perout_flags so any flag request gets rejected
by the upper layer.
I don't know if other switches use non-zero indexes but the KSZ8463 has
twelve periodic outputs, so this index has to also be saved from now on.

Save the full request when a periodic output is successfully started.
Use the saved request when the periodic output is restarted.

Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260925-ksz-perout-v4-1-d675bd21ce49@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Bastien Curutchet (Schneider Electric) 2026-09-25 13:38:47 +02:00 • committed by Jakub Kicinski

parent 6b76e4efe7

commit 1fadd469b6

2 changed files with 19 additions and 17 deletions

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33

drivers/net/dsa/microchip/ksz_ptp.c

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3

drivers/net/dsa/microchip/ksz_ptp.h

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