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fa34c940e8
To manage a graceful power-off of the eMMC card during platform shutdown, the prioritized option is to use the poweroff-notification command, if the eMMC card supports it. During a suspend request we may decide to fall back to use the sleep command, instead of the poweroff-notification, unless the mmc host supports a complete power-cycle of the eMMC. For this reason, we may need to restore power and re-initialize the card, if it remains suspended when a shutdown request is received. However, the current condition to restore power and re-initialize the card doesn't take into account MMC_CAP2_FULL_PWR_CYCLE_IN_SUSPEND properly. This may lead to doing a re-initialization when it really isn't needed, as the eMMC may already have been powered-off using the poweroff-notification command. Let's fix the condition to avoid this. Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250407152759.25160-3-ulf.hansson@linaro.org |
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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.