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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2009-12-02 18:54:31 (GMT)
committerSamuel Ortiz <sameo@linux.intel.com>2009-12-13 18:21:57 (GMT)
commitbe26d664de1a6333156bd586a2f795271cfcf170 (patch)
tree3530b8d00a636fa39674264a3efa78d4de16758a
parented89a7551c65e1db44f1a6b7be6efce178fc87d0 (diff)
downloadlinux-be26d664de1a6333156bd586a2f795271cfcf170.tar.xz
mfd: Don't set mc13783 ADREFMODE for touch conversions
Setting ADREFMODE is utter nonsense, but that's hard to read out of the spec. Strange enough it's possible to read x and y values even when it's set. When unset you can get values not only for the axes, but also for contact resistance which allows the touch driver to report pressure values. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
-rw-r--r--drivers/mfd/mc13783-core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mfd/mc13783-core.c b/drivers/mfd/mc13783-core.c
index dc1add0..a1ade23 100644
--- a/drivers/mfd/mc13783-core.c
+++ b/drivers/mfd/mc13783-core.c
@@ -462,8 +462,8 @@ int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
switch (mode) {
case MC13783_ADC_MODE_TS:
- adc0 |= MC13783_ADC0_ADREFEN | MC13783_ADC0_ADREFMODE
- | MC13783_ADC0_TSMOD0 | MC13783_ADC0_TSMOD1;
+ adc0 |= MC13783_ADC0_ADREFEN | MC13783_ADC0_TSMOD0 |
+ MC13783_ADC0_TSMOD1;
adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
break;