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6f5d340882
commit 6de7435e6b81fe52c0ab4c7e181f6b5decd18eb1 upstream.
Intel MTL-like host controllers support auto-hibernate. Using
auto-hibernate with manual (driver initiated) hibernate produces more
complex operation. For example, the host controller will have to exit
auto-hibernate simply to allow the driver to enter hibernate state
manually. That is not recommended.
The default rpm_lvl and spm_lvl is 3, which includes manual hibernate.
Change the default values to 2, which does not.
Note, to be simpler to backport to stable kernels, utilize the UFS PCI
driver's ->late_init() call back. Recent commits have made it possible
to set up a controller-specific default in the regular ->init() call
back, but not all stable kernels have those changes.
Fixes: 4049f7acef ("scsi: ufs: ufs-pci: Add support for Intel MTL")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250723165856.145750-3-adrian.hunter@intel.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.