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Date: Thu, 28 May 2015 21:50:18 +0200 From: Marek Belisko <marek@...delico.com> To: jic23@...nel.org Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, hns@...delico.com, Marek Belisko <marek@...delico.com> Subject: [PATCH 1/2] iio: adc: twl4030_madc: Fix calculation of the temperature sense current From: "H. Nikolaus Schaller" <hns@...delico.com> 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 <hns@...delico.com> Signed-off-by: Marek Belisko <marek@...delico.com> --- 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 */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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