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When operating with LPM signals, the controller asserts the deep low-power signal (utmi_l1_suspend_n) to the phy when the BESL value of the LPM token is equal to or greater than DCTL.HIRD_Thres[3:0] (and with DCTL.HIRD_Thres[4] set). Otherwise, the shallow low-power signal (utmi_sleep_n) is asserted. Set the recommended deep BESL equal to the controller's DCTL.HIRD_Thres[3:0] setting, and set the baseline BESL to 0 for the shallow low-power signal. This maximizes the opportunity for L1 residency and optimizes power savings. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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.