linux/drivers/input/touchscreen/tsc2007.c, branch v3.2.31

Input: tsc2007 - make sure that X plate resistance is specified

2011-10-12T03:56:41Z

Abort driver initialization if X plate resistance was not specified in platform data as it will cause pressure to be always calculated as 0, and making userspace ignore touch coordinates. Signed-off-by: Philip Rakity Signed-off-by: Dmitry Torokhov

Input: tsc2007 - add open and close methods

2011-08-27T06:25:14Z

This will ensure that the device delivers input events only when there are users. Tested-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: tsc2007 - convert to threaded IRQ

2011-08-27T06:21:53Z

Instead of using hard IRQ and workqueue solution switch to using threaded interrupt handler to simplify the code and locking rules. Tested-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: tsc2007 - add X, Y and Z fuzz factors to platform data

2011-05-17T16:38:53Z

These new platform-specific values can be used to set the fuzz parameter passed to the input_set_abs_params() function for the ABS_X, ABS_Y and ABS_PRESSURE axes. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: tsc2007 - add poll_period parameter to platform data

2011-05-17T16:38:49Z

This new parameter allows the polling frequency to be configured while keeping the default of once every millisecond. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: tsc2007 - add poll_delay parameter to platform data

2011-05-17T16:38:43Z

Depending on the quality of the touch panel, the time for the X-, X+, Y- and Y+ inputs to settle may vary. The poll_delay parameter can be used to override the default of 1 millisecond. Cc: Dmitry Torokhov Cc: Kwangwoo Lee Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: tsc2007 - add max_rt parameter to platform data

2011-05-17T16:38:39Z

Finger touch events or very quick stylus events on low-quality panels can cause the tsc2007 to read bogus values. Looking at oscilloscope snapshots, this seems to be caused by the touch event disappearing during the measurements. These bogus values result in misclicks, where the X and Y values deviate from the real position. Most of these misclicks can be filtered out by setting a low enough threshold for the maximum resistance (which is loosely the inverse of the pressure) allowed to consider a set of values valid. Since this behaviour is largely dependent on the type and quality of the panel, this commit introduces the max_rt parameter. The default value is kept at MAX_12BIT. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: tsc2007 - debounce pressure measurement

2011-05-17T16:38:34Z

When the controller signals a pen-down event via the platform-specific GPIO, while the sample values indicate an invalid measurement, the measurement needs to be repeated. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: tsc2007 - fix a redundant assignment for pdata

2010-09-03T03:14:00Z

Signed-off-by: Axel Lin Signed-off-by: Dmitry Torokhov

i2c: Remove all i2c_set_clientdata(client, NULL) in drivers

2010-06-03T09:33:58Z

I2C drivers can use the clientdata-pointer to point to private data. As I2C devices are not really unregistered, but merely detached from their driver, it used to be the drivers obligation to clear this pointer during remove() or a failed probe(). As a couple of drivers forgot to do this, it was agreed that it was cleaner if the i2c-core does this clearance when appropriate, as there is no guarantee for the lifetime of the clientdata-pointer after remove() anyhow. This feature was added to the core with commit e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 to fix the faulty drivers. As there is no need anymore to clear the clientdata-pointer, remove all current occurrences in the drivers to simplify the code and prevent confusion. Signed-off-by: Wolfram Sang Acked-by: Mark Brown Acked-by: Greg Kroah-Hartman Acked-by: Richard Purdie Acked-by: Dmitry Torokhov Signed-off-by: Jean Delvare