mainlining shenanigans
472796defe
Some of the Alpha PLLs support dynamic update in which the
frequency can be changed dynamically without turning off the PLL.
This dynamic update requires the following sequence:
1. Write the desired values to L_VAL and ALPHA_VAL registers
2. Toggle pll_latch_input from low to high
3. Wait for pll_ack_latch to transition from low to high
The new L and alpha values have been latched. It may
take some time for the PLL to fully settle with these
new values.
4. Pull pll_latch_input low
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.