Russell King (Oracle) c7b0d7874d net: stmmac: move reverse-"pcs" mode setup to stmmac_check_pcs_mode()
The broken reverse-mode, selected by snps,ps-speed, is configured when
the platform provides a valid port speed and a PCS is being used.

Both these remain constant after the driver has probed, so the software
state doesn't need to be re-initialised each time stmmac_hw_setup() is
called (which is called at open and resume time.)

Move the software setup of reverse-mode to stmmac_check_pcs_mode()
which is called from the driver probe function.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/E1v9P6Y-0000000Aolr-0vLH@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-20 17:17:15 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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