net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN

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Ensures a stable PME (Power Management Event) pin state by disabling PME
on system start and enabling it on shutdown only if WoL (Wake-on-LAN) is
configured. This is needed to avoid issues with some PMICs (Power
Management ICs).

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20231026051051.2316937-6-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Oleksij Rempel 2023-10-26 07:10:51 +02:00 • committed by Jakub Kicinski

parent 77c819cb49

commit 8afb91acc4

4 changed files with 55 additions and 1 deletions

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46

drivers/net/dsa/microchip/ksz9477.c

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drivers/net/dsa/microchip/ksz9477.h

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8

drivers/net/dsa/microchip/ksz_common.c

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1

drivers/net/dsa/microchip/ksz_common.h

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