Sorry I replied offlist before. Pressed the wrong key. On 06/30, Hoan Tran wrote: > On Thu, Jun 30, 2016 at 1:23 PM, Stephen Boyd <sb...@codeaurora.org> wrote: > > > > How is this different from clk-fractional-divider.c? > > > > This is a driver which clock output is multiplied with a fixed fractional > scale (denominator). > A field inside a register is used to configure the multiplier. > > Example: With fractional scale is 1/8. > Freq_out = Freq_parent * multiplier * (1/8) > > For fractional-divider, there are 2 fields of a register are used which > - A field for numerator > - A field for denominator > Freq_out = Freq_parent * numerator / denominator >
Ok so the difference is that the denominator is a fixed value? Perhaps that can be modeled as a clk-multiplier that is used as the only parent of a fixed divider? Or we can add a flag to the clk-fractional-divider code to handle this minor difference. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
