net: mdio: realtek-rtl9300: Make otto_emdio_read_cmd() generic

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The otto_emdio_read_cmd() helper still uses RTL9300 specific properties.
This cannot be made generic as the I/O register has different layouts for
the different SoCs. E.g.

- RTL930x: data in bits 31-16, data out bits 15-0
- RTL931x: data in bits 15-0, data out bits 31-16

Add a mask parameter to the function signature and fill it properly
in the callers. As the masks will always have bits set from constant
defines, there is no need for a consistency check.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://patch.msgid.link/20260610194145.4153668-4-markus.stockhausen@gmx.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

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Markus Stockhausen 2026-06-10 21:41:43 +02:00 • committed by Jakub Kicinski

parent 29a540b56e

commit 6e1d8b024d

1 changed files with 6 additions and 4 deletions

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drivers/net/mdio/mdio-realtek-rtl9300.c

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