Firmware reports minimum/maximum coordinates when touches are
from outside of active area. Generate a release event in this
case to handle touches that are going to inactive area. Add
pdata entries for minimum values and check before reporting
the coordinates to userspace.
CRs-fixed: 326858
Change-Id: I385fb80eb670e539b45d232c04969c4502cdf65a
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>
If a firmware upgrade fails, on subsequent boot retry a firmware
upgrade based on the bootloader id. This can be initiated through
the userspace program by writing into the update_fw sysfs entry.
Change-Id: I1d428c52f2cbfff8fe572a2bc6f0cd124111b810
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
This allows firmware upgrade only when a firmware name is provided.
The platform data (config data) of the latest firmware will point
to a NULL string which prevents auto firmware upgrade at boot
(if enabled by the userspace).
Change-Id: Ifef57a9dab9306cf4f1fe7a6c7e52c5e92a25d4a
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
The atmel_mxt_ts driver manipulates the touch coordinates
if they are < 1024. In cases when the display < 1024 and
virtual key area > 1024, there is a problem in reporting
the coordinates for the virtual key area. Add new pdata
variables which can handle this.
Change-Id: Ic31db032a1598c60c01bff31c7b36042f42c9817
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
Add support for dynamic configuration data update if the target can
support more than one Atmel chip. Platform data contains an array of
supported config data along with family ID, variant ID and firmware
version. Driver searches for matching family ID, variant ID and
firmware version, and uses the corresponding config data to program.
Change-Id: I684da4bdef56a3445acab3bb8fe47dd5279bebe5
Signed-off-by: Jing Lin <jinglin@codeaurora.org>
Keyarray(T15) object is used for handling capactive keys.
It can handle 32 keys and the keys supported are passed
from platform data as key_codes.
Change-Id: Iac589afb59e8ff69b6e1eb86bafdc0b5382c3edd
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>
Support mxt224E controller which requires both digital and analog
regulator power.
Change-Id: I2717fd26b4790cf1b6160f09e71611537b47ea3c
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
Remove blen, tchthr, x_line, y_line, orient and voltage from platform
data to not to overwrite the config data with these values. Update
config array to have the proper values.
Turn on i2c_pull_up in platform data.
Change-Id: Ic926e96886f52cea3dad29e9a44559b26c717259
Signed-off-by: Jing Lin <jinglin@codeaurora.org>
The delay before the chip can be accessed after reset varies between different
chips in maXTouch family. Waiting for 200ms and then monitoring the CHG (chip
is ready when the line is low) is guaranteed to work with all chips.
v4: Adjust delay depending on the family ID of the chip. Also add a readback
of command register after backup is issued, to make sure we are not
proceeding
too fast there.
v3: Add a check for NULL read_chg() function, and add the read_chg() to platform
files using this driver (currently only mach-goni.c)
v2: At Dmitry's suggestion, add a timeout so we are not stuck looping
endlessly in case the CHG is not going low.
Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
Different board have different requirements/setups so let's be more
flexible.
Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
As there is no common configuration settings that would work in every
situation, remove the fixed config data from driver code and add
config data to platform data.
Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Change prefixes from qt602240 to mxt to reflect that the driver supports
whole line of mXT touchscreens.
Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Since the driver will be supporting whole range of Atmels mXT touchscreen
controllers we better rename it to atmel_mxt_ts.
Acked-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
