ASoC: sun4i-i2s: Rework MCLK divider calculation

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The MCLK divider calculation is currently computing the ideal divider using
the oversample rate, the sample rate and the parent rate.

However, since we have access to the frequency is supposed to be running at
already, and as it turns out we're using it to compute the oversample rate,
we can just use the ratio between the parent rate and the MCLK rate to
simplify a bit the formula.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://lore.kernel.org/r/dcc5deb2eb650758d268bddd20f60ba58856d024.1566242458.git-series.maxime.ripard@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Maxime Ripard 2019-08-19 21:25:13 +02:00 • committed by Mark Brown

parent c7dd0828c0

commit 8bcf62b73e

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sound/soc/sunxi/sun4i-i2s.c

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