From 0cbb39f1432096cf00eca21f2d10f6d2057c26ba Mon Sep 17 00:00:00 2001 From: "H. Nikolaus Schaller" Date: Thu, 28 May 2015 21:50:18 +0200 Subject: [PATCH] iio: adc: twl4030_madc: Fix calculation of the temperature sense current The bit mask to read the setting of the constant current source for measuring the NTC voltage was the wrong one. Since default value is initialized to the lowest level (000 = 10uA) the difference was probably never noticed in practice. Signed-off-by: H. Nikolaus Schaller Signed-off-by: Marek Belisko Signed-off-by: Jonathan Cameron --- drivers/iio/adc/twl4030-madc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c index 94c5f05..6d2d429 100644 --- a/drivers/iio/adc/twl4030-madc.c +++ b/drivers/iio/adc/twl4030-madc.c @@ -235,7 +235,7 @@ static int twl4030battery_temperature(int raw_volt) if (ret < 0) return ret; - curr = ((val & TWL4030_BCI_ITHEN) + 1) * 10; + curr = ((val & TWL4030_BCI_ITHSENS) + 1) * 10; /* Getting and calculating the thermistor resistance in ohms */ res = volt * 1000 / curr; /* calculating temperature */ -- 2.7.4