From: Uwe Kleine-König Date: Wed, 2 Dec 2009 18:54:31 +0000 (+0100) Subject: mfd: Don't set mc13783 ADREFMODE for touch conversions X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=be26d664de1a6333156bd586a2f795271cfcf170;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git 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 Signed-off-by: Samuel Ortiz --- diff --git a/drivers/mfd/mc13783-core.c b/drivers/mfd/mc13783-core.c index dc1add0c4949..a1ade2324ea9 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;