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ASoC: sophgo: fix 64-bit division build failure

cv1800b_adc_setbclk_div() does four 64-bit divisions in a row, which
is rather inefficient on 32-bit systems, and using the plain division
causes a build failure as a result:

ERROR: modpost: "__aeabi_uldivmod" [sound/soc/sophgo/cv1800b-sound-adc.ko] undefined!

Consolidate those into a single division using the div_u64() macro.

Fixes: 4cf8752a03e6 ("ASoC: sophgo: add CV1800B internal ADC codec driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260202095323.1233553-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

authored by

Arnd Bergmann and committed by
Mark Brown cad9720d 1db63f6a

+2 -5
+2 -5
sound/soc/sophgo/cv1800b-sound-adc.c
··· 105 105 if (!priv->mclk_rate || !rate) 106 106 return -EINVAL; 107 107 108 - tmp = priv->mclk_rate; 109 - tmp /= CV1800B_RXADC_WORD_LEN; 110 - tmp /= CV1800B_RXADC_CHANNELS; 111 - tmp /= rate; 112 - tmp /= 2; 108 + tmp = div_u64(priv->mclk_rate, CV1800B_RXADC_WORD_LEN * 109 + CV1800B_RXADC_CHANNELS * rate * 2); 113 110 114 111 if (!tmp) { 115 112 dev_err(priv->dev, "computed BCLK divider is zero\n");