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input: Touchscreen driver for TPS6507x

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Add touch screen input driver for TPS6507x family of multi-function
chips.  Uses the TPS6507x MFD driver.  No interrupt support due to
testing limitations of current hardware.

Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Todd Fischer 2010-04-05 17:53:12 -06:00 • committed by Samuel Ortiz
commit 7525996670
6 changed files with 443 additions and 0 deletions
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24
include/linux/input/tps6507x-ts.h Normal file
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@ -0,0 +1,24 @@
/* linux/i2c/tps6507x-ts.h
*
* Functions to access TPS65070 touch screen chip.
*
* Copyright (c) 2009 RidgeRun (todd.fischer@ridgerun.com)
*
*
* For licencing details see kernel-base/COPYING
*/
#ifndef __LINUX_I2C_TPS6507X_TS_H
#define __LINUX_I2C_TPS6507X_TS_H
/* Board specific touch screen initial values */
struct touchscreen_init_data {
int poll_period; /* ms */
int vref; /* non-zero to leave vref on */
__u16 min_pressure; /* min reading to be treated as a touch */
__u16 vendor;
__u16 product;
__u16 version;
};
#endif /* __LINUX_I2C_TPS6507X_TS_H */

2
include/linux/mfd/tps6507x.h
View file

@ -142,6 +142,7 @@
struct tps6507x_board {
struct regulator_init_data *tps6507x_pmic_init_data;
struct touchscreen_init_data *tps6507x_ts_init_data;
};
/**
@ -162,6 +163,7 @@ struct tps6507x_dev {
/* Client devices */
struct tps6507x_pmic *pmic;
struct tps6507x_ts *ts;
};
#endif /* __LINUX_MFD_TPS6507X_H */