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Convert stmmac to use phylink-managed Wake-on-Lan support. To achieve this, we implement the .mac_wol_set() method, which simply configures the driver model's struct device wakeup for stmmac, and sets the priv->wolopts appropriately. When STMMAC_FLAG_USE_PHY_WOL is set, in the stmmac world this means to only use the PHY's WoL support and ignore the MAC's WoL capabilities. To preserve this behaviour, we enable phylink's legacy mode, and avoid telling phylink that the MAC has any WoL support. This achieves the same functionality for this case. When STMMAC_FLAG_USE_PHY_WOL is not set, we provide the MAC's WoL capabilities to phylink, which then allows phylink to choose between the PHY and MAC for WoL depending on their individual capabilities as described in the phylink commit. This only augments the WoL functionality with PHYs that declare to the driver model that they are wake-up capable. Currently, very few PHY drivers support this. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://patch.msgid.link/E1vBrRC-0000000BLzg-2tA4@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.