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iio: adc: ad7091r-base: Remove duplicate code on volatile reg check

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Both ad7091r_writeable_reg() and ad7091r_volatile_reg() perform the
same test, checking whether a given 'reg' code is
AD7091R_REG_RESULT or AD7091R_REG_ALERT. As the volatile ad7091r
registers happen to be the only read-only ones, the volatile_reg()
function now returns the negated output of writeable_reg().

Co-developed-by: Bruno Stephan <bruno.stephan@usp.br>
Signed-off-by: Bruno Stephan <bruno.stephan@usp.br>
Co-developed-by: Andre de Lima <aschwarz@usp.br>
Signed-off-by: Andre de Lima <aschwarz@usp.br>
Signed-off-by: Arthur Pilone <art.pilone@gmail.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://patch.msgid.link/20250421145534.91146-1-arthurpilone@usp.br
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Arthur Pilone
2025-04-21 11:55:34 -03:00
committed by Jonathan Cameron
parent 872c8014e0
commit fc0b0e8226
1 changed files with 2 additions and 7 deletions
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9
drivers/iio/adc/ad7091r-base.c
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@@ -387,13 +387,8 @@ EXPORT_SYMBOL_NS_GPL(ad7091r_writeable_reg, "IIO_AD7091R");
bool ad7091r_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case AD7091R_REG_RESULT:
case AD7091R_REG_ALERT:
return true;
default:
return false;
}
/* The volatile ad7091r registers are also the only RO ones. */
return !ad7091r_writeable_reg(dev, reg);
}
EXPORT_SYMBOL_NS_GPL(ad7091r_volatile_reg, "IIO_AD7091R");