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List:       linux-iio
Subject:    [PATCH] twl4030-madc: Request processed values in twl4030_get_madc_conversion
From:       Paul Kocialkowski <contact () paulk ! fr>
Date:       2014-05-24 12:09:58
Message-ID: 1400933398.2079.16.camel () aldrin
[Download RAW message or body]

Not setting the raw parameter in the request causes it to be randomly
initialized to a value that might be different from zero or zero. This leads to
values that are randomly either raw or processed, making it very difficult to
make reliable use of the values.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 drivers/iio/adc/twl4030-madc.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index 7de1c4c..eb86786 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -645,6 +645,7 @@ int twl4030_get_madc_conversion(int channel_no)
 	req.channels = (1 << channel_no);
 	req.method = TWL4030_MADC_SW2;
 	req.active = 0;
+	req.raw = 0;
 	req.func_cb = NULL;
 	ret = twl4030_madc_conversion(&req);
 	if (ret < 0)
-- 
1.7.9.5


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