net: dsa: ks8995: Delete surplus driver

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The Microchip KSZ driver now handles the KS(Z)8995XA. The old
driver identified the shared 0x95/0x0 ID as KS8995MA, but this ID
cannot distinguish MA from XA. No KS8995MA users are known, and
KS8995E has no documented SPI management interface. Neither variant
has been verified with the replacement driver.

The two in-tree device trees using the "micrel,ks8995" compatible:

 arch/arm/boot/dts/intel/ixp/intel-ixp42x-linksys-wrv54g.dts
 arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr.dtsi

both use KS8995XA hardware and continue to be supported by the
replacement driver without regressions.

Delete the old driver, but leave a stub behind in Kconfig so new
users will be automatically phased over to the new symbol when
migrating their configs.

The old driver supports platform data (board file) instantiation,
but nothing in the kernel tree makes use of this legacy mechanism so
it is fine to delete.

Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260916-ks8995-to-ksz8-v15-4-8825ff5fd4be@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Linus Walleij 2026-09-16 12:21:01 +02:00 • committed by Jakub Kicinski

parent a926dc2352

commit 744e0256c4

3 changed files with 6 additions and 862 deletions

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10

drivers/net/dsa/Kconfig

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1

drivers/net/dsa/Makefile

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857

drivers/net/dsa/ks8995.c

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