diff options
| author | Nitin Garg <nitin.garg@freescale.com> | 2012-03-15 14:48:04 -0500 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2012-03-15 14:48:04 -0500 |
| commit | 3a4cc222f95c22e84a50b2a4934ca5e208943b3a (patch) | |
| tree | 1d6923cc71dbc7e8038804eb0e893ae427bb78ff /include/linux/i2c/mpr.h | |
| parent | d1da121bf06cb08e49485dbe419f5c5336d567b8 (diff) | |
ENGR00177017: Improve the mpr121 capacitive button responsiveness on iMX53 SMDimx-android-r14-alpha
The capacitive buttons on iMX53 SMD sometimes misses
the touch events. Improve the sentivity by reducing
touch threshold and enabling baseline tracking in ECR.
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
Diffstat (limited to 'include/linux/i2c/mpr.h')
| -rw-r--r-- | include/linux/i2c/mpr.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/i2c/mpr.h b/include/linux/i2c/mpr.h index ded00db775f3..8dbbee648098 100644 --- a/include/linux/i2c/mpr.h +++ b/include/linux/i2c/mpr.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2010-2012 Freescale Semiconductor, Inc. All Rights Reserved. */ /* @@ -43,6 +43,7 @@ * should be write at last. */ #define ELECTRODE_CONF_ADDR 0x5e +#define ECR_CL_BT_5BIT_VAL 0x80 #define AUTO_CONFIG_CTRL_ADDR 0x7b /* AUTO_CONFIG_USL: Upper Limit for auto baseline search, this * register is related to VDD supplied on your board, the value of @@ -55,7 +56,7 @@ #define AUTO_CONFIG_TL_ADDR 0x7f /* Threshold of touch/release trigger */ -#define TOUCH_THRESHOLD 0x0f +#define TOUCH_THRESHOLD 0x0c #define RELEASE_THRESHOLD 0x0a /* Mask Button bits of STATUS_0 & STATUS_1 register */ #define TOUCH_STATUS_MASK 0xfff |