Re: [PATCH] clk: vc5: Avoid divide by zero when rounding or setting rates

[Stephen Boyd]

Quoting Steve Longerbeam (2018-05-31 18:59:17)
> Add checks in the .round_rate and .set_rate ops for zero requested
> rate or zero parent rate. If either are zero in .round_rate, just
> return zero. If either are zero in .set_rate, return -EINVAL.

Are you seeing problems when the clk is unparented and we're trying to
recalculate the rate or change rates, and thus the parent frequency
looks like 0? Should this get a Fixes: tag so that it goes back to
stable kernels?