msm: clock: Move to per-clock voltage class support in the top-level driver
Generalize the voltage voting logic so that it lives in the
top-level clock.c driver. This has a couple of advantages:
- Voltage voting is no longer restricted to clock-local drivers
and need not be duplicated for different driver types.
- Different clocks may specify requirements on different power rails
by using different voltage_class implementations.
- Fmax data (maximum frequency allowed at a given voltage level)
is separated from the frequency tables and captured as a
property of each clock, so that difference SoCs may share the
same frequency tables even if their voltage requirements differ.
- The per-clock lock can be managed entirely at the clock.c level
Change-Id: I2bbd16096c14cedefa2b7fdf77d9f20d842b1e4d
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
9 files changed