ASoC: rt1320: fix 32-bit link failure

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A plain 64-bit division causes a link failure in some configurations:

ERROR: modpost: "__aeabi_uldivmod" [sound/soc/codecs/snd-soc-rt1320-sdw.ko] undefined!

Since this divides by a constant, using the div_u64() macro ends up
turning this into an efficient multiply/shift operation where possible.

In rt1320_calc_r0(), the open-coded shift seems a litle simpler.

Fixes: da1682d5e8 ("ASoC: rt1320: support calibration and temperature/r0 loading")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20251223215259.677762-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

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Arnd Bergmann 2025-12-23 22:52:53 +01:00 • committed by Mark Brown

parent 45e9066f3a

commit 836ecc740c

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sound/soc/codecs/rt1320-sdw.c

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