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| author | Arnd Bergmann <arnd@arndb.de> | 2026-02-02 10:53:14 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-02-02 12:09:35 +0000 |
| commit | cad9720dd7e4dcdaec8e854fb2c1d1d45fd6dbad (patch) | |
| tree | 6f11acc995d87936a29742c03dcac79b65638409 | |
| parent | 1db63f6af17945aed7497ce34a5648add0c1b6d9 (diff) | |
| download | linux-cad9720dd7e4dcdaec8e854fb2c1d1d45fd6dbad.tar.gz linux-cad9720dd7e4dcdaec8e854fb2c1d1d45fd6dbad.zip | |
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>
| -rw-r--r-- | sound/soc/sophgo/cv1800b-sound-adc.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/sound/soc/sophgo/cv1800b-sound-adc.c b/sound/soc/sophgo/cv1800b-sound-adc.c index 794030b713e9..b66761156b99 100644 --- a/sound/soc/sophgo/cv1800b-sound-adc.c +++ b/sound/soc/sophgo/cv1800b-sound-adc.c @@ -105,11 +105,8 @@ static int cv1800b_adc_setbclk_div(struct cv1800b_priv *priv, unsigned int rate) if (!priv->mclk_rate || !rate) return -EINVAL; - tmp = priv->mclk_rate; - tmp /= CV1800B_RXADC_WORD_LEN; - tmp /= CV1800B_RXADC_CHANNELS; - tmp /= rate; - tmp /= 2; + tmp = div_u64(priv->mclk_rate, CV1800B_RXADC_WORD_LEN * + CV1800B_RXADC_CHANNELS * rate * 2); if (!tmp) { dev_err(priv->dev, "computed BCLK divider is zero\n"); |