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Date:   Wed, 27 May 2020 18:01:01 -0700
From:   Stephen Boyd <>
To:     Lubomir Rintel <>
Cc:     Michael Turquette <>,
        Rob Herring <>,,,,,
        Lubomir Rintel <>
Subject: Re: [PATCH v3 01/13] clk: mmp: frac: Do not lose last 4 digits of precision

Quoting Lubomir Rintel (2020-05-19 15:41:39)
> While calculating the output rate of a fractional divider clock, the
> value is divided and multipled by 10000, discarding the least
> significant digits -- presumably to fit the intermediate value within 32
> bits.
> The precision we're losing is, however, not insignificant for things like
> I2S clock. Maybe also elsewhere, now that since commit ea56ad60260e ("clk:
> mmp2: Stop pretending PLL outputs are constant") the parent rates are more
> precise and no longer rounded to 10000s.
> Signed-off-by: Lubomir Rintel <>
> ---

Applied to clk-next

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