net: dsa: mxl-gsw1xx: Support R(G)MII slew rate configuration

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Support newly introduced maxlinear,slew-rate-txc and
maxlinear,slew-rate-txd device tree properties to configure R(G)MII
interface pins' slew rate. It might be used to reduce the radiated
emissions.

Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://patch.msgid.link/20260114104509.618984-3-alexander.sverdlin@siemens.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Alexander Sverdlin 2026-01-14 11:45:04 +01:00 • committed by Jakub Kicinski

parent 4cc265663d

commit dbf24ab58f

4 changed files with 49 additions and 0 deletions

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1

drivers/net/dsa/lantiq/lantiq_gswip.h

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6

drivers/net/dsa/lantiq/lantiq_gswip_common.c

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40

drivers/net/dsa/lantiq/mxl-gsw1xx.c

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2

drivers/net/dsa/lantiq/mxl-gsw1xx.h

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