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OpenCloudOS-Kernel
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Author SHA1 Message Date
Ivan T. Ivanov 937125aca0 iio: adc: spmi-vadc: Fix overflow in output value normalization 
With 'dx' equal to 0.625V and 15 bit ADC, calculations overflow
when difference against GND is ~20% of the ADC range. Fix this.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2015-04-18 17:40:04 +01:00
Stanimir Varbanov 0917de94c0 iio: vadc: Qualcomm SPMI PMIC voltage ADC driver 
The voltage ADC is peripheral of Qualcomm SPMI PMIC chips. It has
15bits resolution and register space inside PMIC accessible across
SPMI bus.

The vadc driver registers itself through IIO interface.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
 2015-01-28 18:42:08 +00:00