net: phy: c45: add genphy_c45_pma_read_ext_abilities() function

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Move part of the genphy_c45_pma_read_abilities() code to a separate
function.

Some PHYs do not implement PMA/PMD status 2 register (Register 1.8) but
do implement PMA/PMD extended ability register (Register 1.11). To make
use of it, we need to be able to access this part of code separately.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20231212054144.87527-2-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Oleksij Rempel 2023-12-12 06:41:43 +01:00 • committed by Jakub Kicinski

parent a25ebbf332

commit 0c47615708

2 changed files with 75 additions and 55 deletions

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129

drivers/net/phy/phy-c45.c

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1

include/linux/phy.h

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