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1434d04349
On the i.MX7D in LPSR mode, the controller will be powered off and the configuration state is lost after system resume. Upcoming i.MX8QM/QXP will also completely power off the domain, the controller state is lost and needs restore, too. So we need to set the pinctrl state again and re-start chip to re-configuration after resume. For the wakeup case, it should not set pinctrl to sleep state by pinctrl_pm_select_sleep_state. If the interface is down before suspend, we don't need to re-configure it as it will be configured if the interface is brought up later. Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20191204113249.3381-7-qiangqing.zhang@nxp.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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 Restructured Text 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.