staging: iio: tsl2x7x: cleaned up i2c calls in tsl2x7x_als_calibrate()

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The calibration function calls i2c_smbus_write_byte() and
i2c_smbus_read_byte(). These two function calls are replaced with a
single call to i2c_smbus_read_byte_data() by this patch. This patch
also removes an unnecessary call that reads the CNTRL register
a second time. One of the error paths returned -1 if the ADC was not
enabled and this patch changes that return value to -EINVAL.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Brian Masney 2017-07-06 18:56:22 -04:00 • committed by Jonathan Cameron

parent d2f46f56b8

commit 1b4cbe2ef0

1 changed files with 12 additions and 22 deletions

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34

drivers/staging/iio/light/tsl2x7x.c

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