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5fb322df09
[ Upstream commit d32533d30e ]
With auto hibern8 enabled, UIC could be busy processing a hibern8 operation
and the HCI would reports UIC not ready for a short while through
HCS.UCRDY. The UFS driver doesn't currently handle this situation. The
UFSHCI spec specifies UCRDY like this: whether the host controller is ready
to process UIC COMMAND
The 'ready' could be seen as many different meanings. If the meaning
includes not processing any request from HCI, processing a hibern8
operation can be 'not ready'. In this situation, the driver needs to wait
until the operations is completed.
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Link: https://lore.kernel.org/r/550484ffb66300bdcec63d3e304dfd55cb432f1f.1693790060.git.kwmad.kim@samsung.com
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Chanwoo Lee <cw9316.lee@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@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 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.