summaryrefslogtreecommitdiff
path: root/drivers/iio
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-11 20:32:08 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-11 20:32:08 +0300
commit718749d56214aa97015fe01b76b6d6dd0c171796 (patch)
tree2f7355a3527c5579dc76721203d8a0011a40b19b /drivers/iio
parente0c8453769fcaec654cd5870e84c63175658c842 (diff)
parent4ba24fef3eb3b142197135223b90ced2f319cd53 (diff)
downloadlinux-718749d56214aa97015fe01b76b6d6dd0c171796.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: "The first round of updates for the input subsystem. A few new drivers (power button handler for AXP20x PMIC, tps65218 power button driver, sun4i keys driver, regulator haptic driver, NI Ettus Research USRP E3x0 button, Alwinner A10/A20 PS/2 controller). Updates to Synaptics and ALPS touchpad drivers (with more to come later), brand new Focaltech PS/2 support, update to Cypress driver to handle Gen5 (in addition to Gen3) devices, and number of other fixups to various drivers as well as input core" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (54 commits) Input: elan_i2c - fix wrong %p extension Input: evdev - do not queue SYN_DROPPED if queue is empty Input: gscps2 - fix MODULE_DEVICE_TABLE invocation Input: synaptics - use dmax in input_mt_assign_slots Input: pxa27x_keypad - remove unnecessary ARM includes Input: ti_am335x_tsc - replace delta filtering with median filtering ARM: dts: AM335x: Make charge delay a DT parameter for TSC Input: ti_am335x_tsc - read charge delay from DT Input: ti_am335x_tsc - remove udelay in interrupt handler Input: ti_am335x_tsc - interchange touchscreen and ADC steps Input: MT - add support for balanced slot assignment Input: drv2667 - remove wrong and unneeded drv2667-haptics modalias Input: drv260x - remove wrong and unneeded drv260x-haptics modalias Input: cap11xx - remove wrong and unneeded cap11xx modalias Input: sun4i-ts - add support for touchpanel controller on A31 Input: serio - add support for Alwinner A10/A20 PS/2 controller Input: gtco - use sign_extend32() for sign extension Input: elan_i2c - verify firmware signature applying it Input: elantech - remove stale comment from Kconfig Input: cyapa - off by one in cyapa_update_fw_store() ...
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/ti_am335x_adc.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index b730864731e8..adba23246474 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -86,19 +86,18 @@ static void tiadc_step_config(struct iio_dev *indio_dev)
{
struct tiadc_device *adc_dev = iio_priv(indio_dev);
unsigned int stepconfig;
- int i, steps;
+ int i, steps = 0;
/*
* There are 16 configurable steps and 8 analog input
* lines available which are shared between Touchscreen and ADC.
*
- * Steps backwards i.e. from 16 towards 0 are used by ADC
+ * Steps forwards i.e. from 0 towards 16 are used by ADC
* depending on number of input lines needed.
* Channel would represent which analog input
* needs to be given to ADC to digitalize data.
*/
- steps = TOTAL_STEPS - adc_dev->channels;
if (iio_buffer_enabled(indio_dev))
stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1
| STEPCONFIG_MODE_SWCNT;