ASoC: meson: axg-fifo: improve depth handling

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Let the fifo driver parse the fifo depth from DT. Eventually all DT should
have this property. Until it is actually the case, default to 256 bytes if
the property is missing. 256 bytes is the size of the smallest fifo on the
supported SoCs.

On the supported SoC, fifo A is usually bigger than the other ones.  With
depth known, we can improve the usage of the fifo and adapt the setup of
request threshold.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20191218172420.1199117-4-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Jerome Brunet 2019-12-18 18:24:19 +01:00 • committed by Mark Brown

parent 864cee90d4

commit 23b89e1d62

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3 changed files with 22 additions and 11 deletions

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19

sound/soc/meson/axg-fifo.c

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1

sound/soc/meson/axg-fifo.h

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13

sound/soc/meson/axg-frddr.c

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