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iio: sc27xx_adc: Use DIV_ROUND_CLOSEST() instead of open-coding it

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Use DIV_ROUND_CLOSEST() instead of open-coding it. This makes it more clear
what is going on for the casual reviewer.

Generated using the following the Coccinelle semantic patch.

// <smpl>
@@
expression x, y;
@@
-((x) + ((y) / 2)) / (y)
+DIV_ROUND_CLOSEST(x, y)
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Chunyan Zhang <zhang.lyra@gmail.com>
Link: https://lore.kernel.org/r/20201222191618.3433-1-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lars-Peter Clausen 2020-12-22 20:16:18 +01:00 committed by Jonathan Cameron
parent de8860b1ed
commit 138daca30e
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/sc27xx_adc.c
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@ -307,7 +307,7 @@ static int sc27xx_adc_convert_volt(struct sc27xx_adc_data *data, int channel,
sc27xx_adc_volt_ratio(data, channel, scale, &numerator, &denominator);
return (volt * denominator + numerator / 2) / numerator;
return DIV_ROUND_CLOSEST(volt * denominator, numerator);
}
static int sc27xx_adc_read_processed(struct sc27xx_adc_data *data,