iio: addac: stx104: Use define rather than hardcoded limit for write val

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The DAC register is 16 bits wide, so the value passed by write_raw()
should be checked against that limit. Rather than hardcoding the 16-bit
maximum value limit, use a define to improve readability and make the
intention of the code clearer. The explicit cast is also avoided by
instead explicitly checking for negative values.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/4c9f4f1b4a270d133be70c82a091351b531b5e3e.1680790580.git.william.gray@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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William Breathitt Gray 2023-04-06 10:40:12 -04:00 • committed by Jonathan Cameron

parent 4f9b80aefb

commit 46a4cac7f8

1 changed files with 2 additions and 2 deletions

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drivers/iio/addac/stx104.c

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