- 23 Jul, 2014 13 commits
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Nick Dyer authored
This is in preparation for support of the T44 message count object. Also, cache T5 address to avoid lookup on every interrupt cycle. Signed-off-by:
Nick Dyer <nick.dyer@itdev.co.uk> Acked-by:
Benson Leung <bleung@chromium.org> Acked-by:
Yufeng Shen <miletus@chromium.org> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Nick Dyer authored
By storing the previous T6 status byte multiple debug output of the same status can be suppressed (for example CFGERR). Signed-off-by:
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Nick Dyer authored
The T5 object may have various sizes depending on the objects used on the particular maXTouch chip and firmware version, therefore it can't be hardcoded in the driver. Allocate a buffer on probe instead. Signed-off-by:
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Nick Dyer authored
The MXT device may be in bootloader mode on probe, due to: 1) APP CRC failure, either: a) flash corruption b) bad power or other intermittent problem while checking CRC 2) If the device has been reset 10 or more times without accessing comms 3) Warm probe, device was in bootloader mode already This code attempts to recover from 1(b) and 3. There is an additional complexity: we have to try two possible bootloader addresses because the mapping is not one-to-one and we don't know the exact model yet. Signed-off-by:
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Nick Dyer authored
Later chips (for example mXT1664S) different mappings for bootloader addresses. This means that we must look at the family ID to determine which address to use. Signed-off-by:
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Nick Dyer authored
On a warm probe, the device might be in a state where an flash operation was not completed. Signed-off-by:
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Nick Dyer authored
If the bootloader on the touchscreen controller fails to initialise the firmware image, it stays in bootloader mode and reports a failure. It is possible to reflash a working firmware image from this state. Signed-off-by:
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Nick Dyer authored
By validating the checksum, we can identify if the configuration is corrupt. In addition, this patch writes the configuration in a short series of block writes rather than as many individual values. Signed-off-by:
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Nick Dyer authored
The existing implementation which encodes the configuration as a binary blob in platform data is unsatisfactory since it requires a kernel recompile for the configuration to be changed, and it doesn't deal well with firmware changes that move values around on the chip. Atmel define an ASCII format for the configuration which can be exported from their tools. This patch implements a parser for that format which loads the configuration via the firmware loader and sends it to the MXT chip. Signed-off-by:
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Stephen Warren authored
Signed-off-by:
Stephen Warren <swarren@nvidia.com> Signed-off-by:
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Benson Leung authored
Touchpads are pointers, so make sure to pass the correct values to input_mt_report_pointer_emulation(). Without this, tap-to-click doesn't work. Signed-off-by:
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Nick Dyer authored
It is useful to initialise the input device later: - Screen parameters may not be not known yet, for instance if waiting for firmware loader to return. - Device may be in bootloader mode on probe (but could still be recovered by firmware download). In addition, later devices have a different touchscreen object (T100) which requires handling differently. This also reduces the complexity of the probe function. Signed-off-by:
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Nick Dyer authored
The maXTouch chips use the CHG line to generate status events in bootloader mode, and during configuration download, before there is enough information to configure the input device. Therefore set up the interrupt handler earlier. However, this introduces states where parts of the interrupt processing must not run. Use data->object_table as a way to tell whether the chip information is valid, and data->input_dev as a way to tell whether it is valid to generate input report. Signed-off-by:
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- 21 Jul, 2014 3 commits
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David Herrmann authored
This ioctl is the counterpart to EVIOCGVERSION and returns the uinput-version the kernel was compiled with. Reviewed-by:
Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by:
David Herrmann <dh.herrmann@gmail.com> Signed-off-by:
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David Herrmann authored
This moves basic checks and setup from uinput_setup_device() into uinput_validate_absbits() to make it easier to use. This way, we can call it from other places without copying the boilerplate code. Reviewed-by:
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Heiko Stuebner authored
It's possible that the controller has an individually switchable power supply. Therefore add support to control a supplying regulator. As this is not always the case, the regulator is requested as optional. Signed-off-by:
Heiko Stuebner <heiko.stuebner@bq.com> Signed-off-by:
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- 20 Jul, 2014 3 commits
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Vasily Khoruzhick authored
Use clk_prepare_enable/clk_disable_unprepare to make the driver work properly with common clock framework. Signed-off-by:
Vasily Khoruzhick <anarsoul@gmail.com> Reviewed-by:
Tomasz Figa <t.figa@samsung.com> Signed-off-by:
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Hans de Goede authored
Recent version of xf86-input-wacom no longer support directly accessing serial tablets. Instead xf86-input-wacom now expects all wacom tablets to be driven by the kernel and to show up as evdev devices. This has caused old serial Wacom tablets to stop working for people who still have such tablets. Julian Squires has written a serio input driver to fix this: https://github.com/tokenrove/wacom-serial-iv This is a cleaned up version of this driver with improved Graphire support (I own an old Graphire myself). Signed-off-by:
Julian Squires <julian@cipht.net> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Himangi Saraogi authored
This patch introduces the use of managed interfaces like devm_kzalloc, devm_input_allocate_device, devm_request_threaded_irq etc. and does away with the calls to free the allocated memory. The remove function is no longer required and is completely done away with. Also, the labels in the probe function are removed. Signed-off-by:
Himangi Saraogi <himangi774@gmail.com> Acked-by:
Julia Lawall <julia.lawall@lip6.fr> Signed-off-by:
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- 18 Jul, 2014 3 commits
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Daniel Mack authored
This patch adds a driver for Microchips CAP1106, an I2C driven, 6-channel capacitive touch sensor. For now, only the capacitive buttons are supported, and no specific settings that can be tweaked for individual channels, except for the device-wide sensitivity gain. The defaults seem to work just fine out of the box, so I'll leave configurable parameters for someone who's in need of them and who can actually measure the impact. All registers are prepared, however. Many of them are just not used for now. The implementation does not make any attempt to be compatible to platform data driven boards, but fully depends on CONFIG_OF. Power management functions are also left for volounteers with the ability to actually test them. Signed-off-by:
Daniel Mack <zonque@gmail.com> Signed-off-by:
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Fabian Frederick authored
Fix checkpatch warning: "WARNING: debugfs_remove_recursive(NULL) is safe this check is probably not required" Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
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Fabian Frederick authored
Signed-off-by:
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- 08 Jun, 2014 5 commits
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Nick Dyer authored
The patch e57a66aa: "Input: atmel_mxt_ts - read and report bootloader version" from May 18, 2014, leads to the following static checker warning: drivers/input/touchscreen/atmel_mxt_ts.c:437 mxt_get_bootloader_version() warn: signedness bug returning '(-5)' drivers/input/touchscreen/atmel_mxt_ts.c 429 static u8 mxt_get_bootloader_version(struct mxt_data *data, u8 val) 430 { 431 struct device *dev = &data->client->dev; 432 u8 buf[3]; 433 434 if (val & MXT_BOOT_EXTENDED_ID) { 435 if (mxt_bootloader_read(data, &buf[0], 3) != 0) { 436 dev_err(dev, "%s: i2c failure\n", __func__); 437 return -EIO; ^^^^ This gets truncated into a number from 0-255 and anyway the caller doesn't check for errors. (reported by Dan Carpenter) Signed-off-by:
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Sachin Kamat authored
Let's start checking return value of regulator_enable and pwm_enable to avoid errors. Fixes the following warning: drivers/input/misc/max8997_haptic.c:185:19: warning: ignoring return value of ‘regulator_enable’, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by:
Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by:
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Hans de Goede authored
The touchpad on the GIGABYTE U2442 not only stops communicating when we try to set bit 3 (enable real hardware resolution) of reg_10, but on some BIOS versions also when we set bit 1 (enable two finger mode auto correct). I've asked the original reporter of: https://bugzilla.kernel.org/show_bug.cgi?id=61151 To check that not setting bit 1 does not lead to any adverse effects on his model / BIOS revision, and it does not, so this commit fixes the touchpad not working on these versions by simply never setting bit 1 for laptop models with the no_hw_res quirk. Reported-and-tested-by:
James Lademann <jwlademann@gmail.com> Tested-by:
Philipp Wolfer <ph.wolfer@gmail.com> Cc: stable@vger.kernel.org Signed-off-by:
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Hans de Goede authored
At least the Dell Vostro 5470 elantech *clickpad* reports right button clicks when clicked in the right bottom area: https://bugzilla.redhat.com/show_bug.cgi?id=1103528 This is different from how (elantech) clickpads normally operate, normally no matter where the user clicks on the pad the pad always reports a left button event, since there is only 1 hardware button beneath the path. It looks like Dell has put 2 buttons under the pad, one under each bottom corner, causing this. Since this however still clearly is a real clickpad hardware-wise, we still want to report it as such to userspace, so that things like finger movement in the bottom area can be properly ignored as it should be on clickpads. So deal with this weirdness by simply mapping a right click to a left click on elantech clickpads. As an added advantage this is something which we can simply do on all elantech clickpads, so no need to add special quirks for this weird model. Reported-and-tested-by:
Elder Marco <eldermarco@gmail.com> Cc: stable@vger.kernel.org Signed-off-by:
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Robert Woerle authored
The driver sends 3 bytes instead of 2 when accessing a register on the M09 firmware, so writing to gain seems to overflow into the offset register. Signed-off-by:
Robert Woerle <robert@linuxdevelopment.de> Acked-By:
Simon Budig <simon.budig@kernelconcepts.de> Signed-off-by:
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- 29 May, 2014 13 commits
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Joachim Eastwood authored
This is unused since all users (OMAP4/5) are DT only. Signed-off-by:
Joachim Eastwood <manabian@gmail.com> Signed-off-by:
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Joachim Eastwood authored
This has been unused since omap4 board files went away. Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Himangi Saraogi authored
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by:
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Himangi Saraogi authored
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by:
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Himangi Saraogi authored
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by:
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Himangi Saraogi authored
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by:
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Himangi Saraogi authored
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by:
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Ping Cheng authored
New Cintiq tablets have a 200 tablet counts outside of screen area. Add x/y_min for ABS_X/Y to pass this information to userland. Signed-off-by:
Ping Cheng <pingc@wacom.com> Reviewed-by:
Jason Gerecke <killertofu@gmail.com> Tested-by:
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Ping Cheng authored
Signed-off-by:
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Sebastian Reichel authored
This adds support for the tsc2005 touchscreen to the Nokia N900 DTS file. Signed-off-by:
Sebastian Reichel <sre@kernel.org> Acked-by:
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Sebastian Reichel authored
This adds DT support to the tsc2005 touchscreen driver. It also adds regulator support to the driver if booted via DT. Reviewed-by:
Pavel Machek <pavel@ucw.cz> Acked-by:
Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by:
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Sebastian Reichel authored
Add common DT binding documentation for touchscreen devices and implement input_parse_touchscreen_of_params, which parses the common properties and configures the input device accordingly. The method currently does not interpret the axis inversion properties, since there is no matching flag in the generic linux input device. Reviewed-by:
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Himangi Saraogi authored
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by:
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