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The benchmark test shows a significant score drop from 87038 to 73764, if enabling UFSHCD_CAP_RPM_AUTOSUSPEND, due to the slow recover process during readom rw test. Meanwhile we finally have a power consumption result, which shows even more power consumption was observed due to the phy/unipro status mismatch, one side is in H8, another side lost the link. |scene | UFS 128G rpm disable |UFS 128G rpm enable | |-------------------------------------------------------------------------------------| |screen 3.8V |TEMP25 |DDR |V |mA |VBAT |V |mA |VBAT | |-------------------------------------------------------------------------------------| |Static Desk |36 |528 |3.8V |419.11 |3.845|414.2 |3.8V |418.79 |3.843|414.1| |-------------------------------------------------------------------------------------| |Static Desk[1]|36 |528 |3.8V |125.76 |3.882|123.1 |3.8V |127.05 |3.881|124.4| |-------------------------------------------------------------------------------------| |1080P video |36 |528 |3.8V |556.83 |3.827|552.9 |3.8V |584.63 |3.829|580.2| |-------------------------------------------------------------------------------------| |1080P video[2]|36 |528 |3.8V |525.06 |3.837|520 |3.8V |499.98 |3.839|494.9| |-------------------------------------------------------------------------------------| |Note: [1] no screen [2] no buffering | |-------------------------------------------------------------------------------------| Moreover it significantly increases the possibility of failing to wait UIC ready state, which can lead to very long reset and restore link process, adding more latency to the system. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Change-Id: I9839fdb4a93c0ecae4b581f07db3281a40a2fa25
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.