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Because the difference of sram and proc should in a range of min_volt_shift and max_volt_shift. We need to adjust the sram and proc step by step. We replace VOLT_TOL (voltage tolerance) with the platform data and update the logic to determine the voltage boundary and invoking regulator_set_voltage. - Use 'sram_min_volt' and 'sram_max_volt' to determine the voltage boundary of sram regulator. - Use (sram_min_volt - min_volt_shift) and 'proc_max_volt' to determine the voltage boundary of vproc regulator. Moreover, to prevent infinite loop when tracking voltage, we calculate the maximum value for each platform data. We assume min voltage is 0 and tracking target voltage using min_volt_shift for each iteration. The retry_max is 3 times of expeted iteration count. Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.com> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.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.