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With below sequence, we can see wakeup default is enabled after re-load module, if it was enabled before, so we need disable wakeup in flexcan_remove(). | # cat /sys/bus/platform/drivers/flexcan/5a8e0000.can/power/wakeup | disabled | # echo enabled > /sys/bus/platform/drivers/flexcan/5a8e0000.can/power/wakeup | # cat /sys/bus/platform/drivers/flexcan/5a8e0000.can/power/wakeup | enabled | # rmmod flexcan | # modprobe flexcan | # cat /sys/bus/platform/drivers/flexcan/5a8e0000.can/power/wakeup | enabled Fixes:de3578c198("can: flexcan: add self wakeup support") Fixes:915f966642("can: flexcan: add support for DT property 'wakeup-source'") Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20201020184527.8190-1-qiangqing.zhang@nxp.com [mkl: streamlined commit message] 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.