[RFC v1] clk: Add debugfs nodes for enable/disable/set-rate/set-parent

Pankaj DEV [off-list ref] writes:

The prime motive for clk_set_rate is to set new rate for a clock,
since the 'clk_rate' currently available, allows only reading.
To provide reading rate from 'clk_set_rate' is just additional feature.

Sure.

But my point is to combine things.


After your patch:

- read via clk_rate
- read via clk_set_rate
- write via clk_set_rate

My proposal:

- read via clk_rate
- write via clk_rate