net: stmmac: block PHY RXC clock-stop

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The DesignWare core requires the receive clock to be running during
certain operations. Ensure that we block PHY RXC clock-stop during
these operations.

This is a best-efforts change - not everywhere can be covered by this
because of net's core locking, which means we can't access the MDIO
bus to configure the PHY to disable RXC clock-stop in certain areas.
These are marked with FIXME comments.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tvO6p-008Vjz-Qy@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Russell King (Oracle) 2025-03-20 22:11:27 +00:00 • committed by Jakub Kicinski

parent ddf4bd3f73

commit dd557266cf

1 changed files with 27 additions and 0 deletions

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drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

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