Re: [PATCH v2 2/2] clk: bcm2835: Minimise clock jitter for PCM clock

2017-06-01 Thread Phil Elwell
On 31/05/2017 22:36, Eric Anholt wrote: > Phil Elwell writes: > >> Fractional clock dividers generate accurate average frequencies but >> with jitter, particularly when the integer divisor is small. >> >> Introduce a new metric of clock accuracy to penalise clocks with a good >> average but worse

Re: [PATCH v2 2/2] clk: bcm2835: Minimise clock jitter for PCM clock

2017-05-31 Thread Eric Anholt
Phil Elwell writes: > Fractional clock dividers generate accurate average frequencies but > with jitter, particularly when the integer divisor is small. > > Introduce a new metric of clock accuracy to penalise clocks with a good > average but worse jitter compared to clocks with an average which

[PATCH v2 2/2] clk: bcm2835: Minimise clock jitter for PCM clock

2017-05-31 Thread Phil Elwell
Fractional clock dividers generate accurate average frequencies but with jitter, particularly when the integer divisor is small. Introduce a new metric of clock accuracy to penalise clocks with a good average but worse jitter compared to clocks with an average which is no better but with lower jit