linux-toradex.git/include/linux/spi/ads7846.h, branch v3.2.73

Input: ads7846 - add possibility to use external vref on ads7846

2011-05-12T15:28:56+00:00

Just set vref_mv in your platform config to use external vref. Otherwise
the internal one is used.

Signed-off-by: Alexander Stein 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - do not allow altering platform data

2010-07-03T20:13:22+00:00

Tested-by: Anatolij Gustschin 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - allow specifying irq trigger type in platform data

2010-06-28T08:34:25+00:00

On some platforms, for example with GPIO interrupts on mpc5121,
it is not possible to configure falling edge interrupts.

Specifying irq trigger type in platform data structure
allows using ads7846 driver on such platforms.

Signed-off-by: Anatolij Gustschin 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - add wakeup support

2010-03-11T08:02:43+00:00

Add wakeup support to the ads7846 driver. Platforms can enable wakeup
capability by setting the wakeup flag in ads7846_platform_data. With this
patch the ads7846 driver can be used to wake the system from suspend.

Signed-off-by: Ranjith Lohithakshan 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - add support for AD7843 parts

2010-03-10T06:12:45+00:00

The AD7873 is almost identical to the ADS7846; the only difference is
related to the Power Management bits PD0 and PD1.  This results in a
slightly different PENIRQ enable behavior.  For the AD7873, VREF should
be turned off during differential measurements.

So, add the AD7873/43 to the list of driver supported devices, and prevent
VREF usage during differential/ratiometric conversion modes.

Signed-off-by: Michael Hennerich 
Signed-off-by: Mike Frysinger 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - support swapping x and y axes

2009-05-20T02:24:54+00:00

Signed-off-by: Michael Roth 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - introduce platform specific way to synchronize sampling

2009-04-12T00:09:15+00:00

Noises can be introduced when LCD signals are being driven, some platforms
provide a signal to assist the synchronization of this sampling procedure.

Signed-off-by: Eric Miao 
Signed-off-by: Andrew Morton 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - introduce .gpio_pendown to get pendown state

2008-09-17T16:33:37+00:00

The GPIO connected to ADS7846 nPENIRQ signal is usually used to get
the pendown state as well. Introduce a .gpio_pendown, and use this
to decide the pendown state if .get_pendown_state is NULL.

Signed-off-by: Eric Miao 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - simplify support of external vREF (and ads7843)

2008-04-02T04:43:01+00:00

This updates the ads7846 driver to handle external vREF (required
on boards using ads7843 chips) without module parameters, and also
removes a needless variable with its associated bogus gcc warning.

Signed-off-by: David Brownell 
Signed-off-by: Dmitry Torokhov

Input: ads7846 - re-check pendown status before reporting events

2007-07-18T04:36:04+00:00

Pendown status from the PENIRQ pin is currently read only at the beginning
of a sample set. If the pen is lifted just after sampling has began then
sampled values become wrong.

This patch adds an optional platform penirq_recheck_delay attribute.  If
non-zero, samples are only reported to the input subsystem if PENIRQ is
still active that long after the samples taken.

Signed-off-by: Semih Hazar 
Signed-off-by: David Brownell 
Signed-off-by: Dmitry Torokhov