net: dsa: microchip: implement ksz8463_setup()

KSZ8463 uses the ksz8_setup() as setup() callback for its DSA
operations. Its behavior is quite different than other KSZ8 switches,
especially its interrupt scheme.

Remove from the ksz8_setup()/ksz8_reset_switch() everything that is
ksz8463-related.
Create a dedicated ksz8463_setup() and a ksz8463_reset_switch() function.
This new ksz8463_setup() is widely inspired from ksz8_setup, it has
following differences:
- it doesn't configure drive strength (not supported on KSZ8463)
- it uses the ksz8463_reset_switch()
- it doesn't call ksz8_handle_global_errata() (the handled errata only
  affects the KSZ87xx variant)
- it doesn't configure IRQs. Note that ksz8_setup()'s IRQ initialization
  doesn't work for the KSZ8463 anyway. Proper support for it comes in
  upcoming patches.

Remove the teardown implementation from the KSZ8463 operations. Since
PTP and interrupts aren't setup, the common ksz_teardown() wouldn't do
anything anyway.

Signed-off-by: Bastien Curutchet (Schneider Electric) <bastien.curutchet@bootlin.com>
Link: https://patch.msgid.link/20260727-ksz-new-ptp-v3-1-caba39e680e3@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions