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2011-11-30input: touch: atmel_mxt_ts: Add SysFS interface to slow down scanning.Robert Collins
Video playback would like to save power by slowing touchscreen scanning. This change adds a SysFS interface to allow the scan rate to be programmed by the video display interface. SysFS location: /sys/devices/platform/tegra-i2c.1/i2c-1/1-005a/slowscan_enable Read functions: cat slowscan_enable (returns current register status) Write functions: 0 - Disable slowscan 1 - Enable slowscan 2 N - Program actv_cycle_time with value of N 3 N - Program idle_cycle_time with value of N 4 N - Program actv2idle timeout with value of N (seconds * 10) Bug 891993 Change-Id: Ib11b544019f3a78290785502e7209b8cbd985852 Reviewed-on: http://git-master/r/65006 Reviewed-by: Robert Collins <rcollins@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Tested-by: Bharat Nihalani <bnihalani@nvidia.com> Rebase-Id: Re4398871d4964d366f0dbdd856a7953600577dea
2011-11-30input: touch: atmel_mxt_ts: Disable TS power during LP0.Robert Collins
In order to save system power, we should cut the power to the touchscreen controller. Older versions of our TS driver did this. This feature was accidentally removed during a recent driver update. Bug 891979 Change-Id: I4bf9333832af65c00b8b10cc8191f4d26aad04e4 Reviewed-on: http://git-master/r/65005 Reviewed-by: Robert Collins <rcollins@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Tested-by: Bharat Nihalani <bnihalani@nvidia.com> Rebase-Id: R370b26e990a5f129ea0f8e73e9b7178bd85b79e5
2011-11-30input: touch: atmel_mxt_ts: Updated to new Atmel touch driver.Robert Collins
Updated to new Atmel touch driver. Added sysfs interface to allow Config-UI applications to run. Primary changes: * Add sysfs interface to allow user applications access to the touchscreen controller register interface. Required by Config-UI utility. * Fixed bug in stop/start functions that would prevent TS from working with encrypted filesystems. * Fix logic error that could cause a deadlock condition during LP0 resume. Change-Id: If25260e60843e3c3bb3a9818ed9146ea78c39902 Reviewed-on: http://git-master/r/65004 Reviewed-by: Robert Collins <rcollins@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Tested-by: Bharat Nihalani <bnihalani@nvidia.com> Rebase-Id: R9bde02eeeae3a899e18d17b5ff26cac371729cb0
2011-11-30gcov-kernel: Add GCOV_KERNEL := y to MakefilesJuha Tukkinen
These changes have no effect if CONFIG_GCOV_KERNEL is not set in defconfig. It is easier to trigger GCOV for kernel if this patch is in by only setting the before mentioned flag. Change-Id: I8aade309da2da62c4b3889bd84e4123ba8f182da Signed-off-by: Juha Tukkinen <jtukkinen@nvidia.com> Reviewed-on: http://git-master/r/62999 Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Rebase-Id: R4c238f707f1db600f188ae83426336753992b7be
2011-11-30input: tegra: kbc: Board param for scan countLaxman Dewangan
The scan timeout of the continuous mode can be calculated based on init delay, repeat delay, debounce count and number of active row. It also depends on how many scan need to be done before kbc change the mode from continuous to wakeup mode. Providing mechanism to select the scan count from platform data and calculating the scan timeout count based on above parameters. bug 876712 Reviewed-on: http://git-master/r/62591 (cherry picked from commit 3360ed5be86a2afd6716bc5227cc39657efd35b2) Change-Id: Ib9dc96b1cc201b7af0bd62a3ec7fe9a80791d796 Reviewed-on: http://git-master/r/63229 Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com> Tested-by: Laxman Dewangan <ldewangan@nvidia.com> Rebase-Id: Rbcb685d34c5d00ebf1c79d356eb63e4584075447
2011-11-30input: keyboard: Set configuration registersShridhar Rasal
-Set only REQUIRED row and column configuration register to PROPER values to avoid continuously generating KBC input events. -Use *enable* field in pin_cfg, to check GPIO_x_ROW_EN register should be set or clear. bug 889620 Change-Id: I91990156c300605c214e7e393edf14fbced1573d Reviewed-on: http://git-master/r/59153 Reviewed-by: Shridhar Rasal <srasal@nvidia.com> Tested-by: Shridhar Rasal <srasal@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Rebase-Id: R03e9deb839fc21c1ea66fc81ae6601155b8e8d4d
2011-11-30input: touch: atmel_mxt_ts: Prevent touchscreen from becoming unresponsive ↵Joel Kenny
in some situations BUG 868649 Reviewed-on: http://git-master/r/50598 (cherry picked from commit ad1dbe0eda931f813b20d75400daaa9edf18c82a) Change-Id: I29f353687c499ff830e98fcf038d8a786dc5608b Reviewed-on: http://git-master/r/54841 Reviewed-by: Joel Kenny <jkenny@nvidia.com> Reviewed-by: Robert Collins <rcollins@nvidia.com> Reviewed-by: Dan Willemsen <dwillemsen@nvidia.com> Tested-by: Joel Kenny <jkenny@nvidia.com> Rebase-Id: Rdde94e071f4a27250eccad562c819ca2f537ffcd
2011-11-30HACK Revert "Input: tegra-kbc - change wakeup logic to be all or nothing"Dan Willemsen
This reverts commit baafb435372dd48e3854028aec669effae957c9e. Rebase-Id: Re9bd7135ad63df297876341431cad65fa12a838a
2011-11-30input: touch: atmel_mxt_ts: Prevent boot and resume hangs.Robert Collins
Prevents touchscreen hangs during initial TS boot, and TS resume. BUG 847725 BUG 845156 BUG 846711 Original-Change-Id: Ia853574e4b2422eb9368fe37eaf7457bd4022df8 Reviewed-on: http://git-master/r/40261 Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: Rc1de4685a4e85d761097142b39f2a672846b8c44
2011-11-30Input: atmel_mxt_touch: NVIDIA touch customizationRobert Collins
* Fix suspend/resume bug to prevent unecessary i2cinterrupts when suspended. * Change input device name to match NVDA IDC name. * Add I2C address defines. * Change "printk" to "dev_info" function calls. BUG 826854 Original-Change-Id: Ic1b25bc469b86d8a26e876e80973597d9f6fb107 Reviewed-on: http://git-master/r/35285 Reviewed-by: Robert R Collins <rcollins@nvidia.com> Tested-by: Robert R Collins <rcollins@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Reviewed-by: Narendra Damahe <ndamahe@nvidia.com> Reviewed-by: Daniel Willemsen <dwillemsen@nvidia.com> Rebase-Id: Rcba51c79d3c004372c0be18538f14f56a2249bc0
2011-11-30Input: atmel_mxt_ts: Atmel customizations to touch.Robert Collins
Integrate changes made by Atmel. These changes are in addition to mainline driver. NOTE: Driver will compile as a stand-alone. BUG 826854 Original-Change-Id: If13688d90d97b71718576f3fb756496f57a965d7 Reviewed-on: http://git-master/r/35280 Reviewed-by: Robert R Collins <rcollins@nvidia.com> Tested-by: Robert R Collins <rcollins@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Reviewed-by: Daniel Willemsen <dwillemsen@nvidia.com> Rebase-Id: Reb8ae14299d248c0ce69e52b26a8816d1a0ee057
2011-11-30input: interrupt_key: Reporting release event after timeoutLaxman Dewangan
For the key connected directly to interrupt keys, there is continuous interrupt from key pressed. The generation of interrupt stops only when key is released. To handle this case, reporting the key press in first interrupt and key release event if there is no interrupt for sometime. This time is configurable from platform data. bug 814005 Original-Change-Id: I56345ca68bd227e48cf31b1f54a0deac43bf900c Reviewed-on: http://git-master/r/28065 Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com> Tested-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Ramachandrudu Kandhala <rkandhala@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Original-Change-Id: I83d04992fe29c9a472a79e900b8083475c1ddf40 Rebase-Id: R62a01548c16a78033337dcfe35d391210412c3f2
2011-11-30Update copyrightsScott Williams
Original-Change-Id: I2ffeaf6f8dfeb279b40ca6f69f6c9157401a746a Rebase-Id: R056056997b4913133216474f863fc17c7f69878b
2011-11-30input: keyboard: Adding keys support through interrupt linesLaxman Dewangan
Adding keys support which are directly connected to interrupt lines. Original-Change-Id: Ib26c06b170b82f4745e758be80b3e04122ad1d6c Reviewed-on: http://git-master/r/22069 Tested-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com> Original-Change-Id: I3921cc88f32558282654fbd36243b4b0b3574133 Rebase-Id: Rd7954ff7c2e0167a6a4765ff2f08494b9d0eba14
2011-11-30input: gpio-keys: report wakeup key on resumeNitin Kumbhar
During resume, gpio-keys does not get updated state of gpios which fails to report wakeup key event. Update resume routine to report key event based on wakeup source. BUG 745149 Original-Change-Id: Iff7a9b431f9da8d226c8d3cd522725c3049fef07 Reviewed-on: http://git-master/r/17455 Tested-by: Nitin Kumbhar <nkumbhar@nvidia.com> Reviewed-by: Varun Wadekar <vwadekar@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Rebase-Id: Rde589cdb4f74683e9ea46933c7f949da16c5f884
2011-11-30[ARM] tegra: gpio based scrollwheel driverSachin Nikam
Reports Scroll keys: - Press - Scrollup - Scrolldown Original-Change-Id: I47f6ca3d7b5bed4aa7441634850881df7066fce7 Reviewed-on: http://git-master/r/13618 Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Tested-by: Bharat Nihalani <bnihalani@nvidia.com> Rebase-Id: R7c42f5468e8a89fb4881abd7ef7d314740f99144
2011-11-30touchscreen: panjit: use multi-touch reporting interfaceGary King
Change-Id: I2bcad8cd07725e36598545168f33b87b9f217c11 Signed-off-by: Gary King <gking@nvidia.com>
2011-11-30input: touchscreen: panjit_i2c: fix suspendGary King
the panjit touchscreen needs to be reset when returning from deep sleep mode; add a platform data structure to specify the reset GPIO. perform the reset during _probe, since the code already needs to exist for _resume delete a bunch of unused preprocessor defines Change-Id: I71ae65dec45710b0eab4625036edf75064d4cc2b Signed-off-by: Gary King <gking@nvidia.com>
2011-11-30panjit_touch: fix warning "control reaches end of non-void function"Gary King
Change-Id: I3a43dc58edff3687e294c2d2a09d1f6e06e27fce Signed-off-by: Gary King <gking@nvidia.com>
2011-11-30input: touchscreen driver for panjit capacitive i2c touch panelsGary King
driver supports the MGG1010AI06 and EGG1010AI06 capacitive touch panels Change-Id: I038030bf4c9acbd0d3d504427a32f4e46632c115 Signed-off-by: Gary King <gking@nvidia.com>
2011-10-05Merge branch 'for-linus' of git://github.com/dtor/inputLinus Torvalds
* 'for-linus' of git://github.com/dtor/input: Input: wacom - revert "Cintiq 21UX2 does not have menu strips"
2011-10-04Input: wacom - revert "Cintiq 21UX2 does not have menu strips"Jason Gerecke
This reverts commit 71c86ce59791bcd67af937bbea719a508079d7c2. The 21UX2 does have touchstrips, but they are in a somewhat- hidden location. Signed-off-by: Jason Gerecke <killertofu@gmail.com> Acked-by: Ping Cheng <pinglinux@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-09-16Merge branch 'for-linus' of git://github.com/dtor/inputLinus Torvalds
* 'for-linus' of git://github.com/dtor/input: Input: wacom - fix touch parsing on newer Bamboos Input: bcm5974 - add MacBookAir4,1 trackpad support Input: wacom - add POINTER and DIRECT device properties Input: adp5588-keys - remove incorrect modalias Input: cm109 - fix checking return value of usb_control_msg Input: wacom - advertise BTN_TOOL_PEN and BTN_STYLUS for PenPartner Input: wacom - remove pressure for touch devices
2011-09-12Input: wacom - fix touch parsing on newer BamboosChris Bagwell
Bamboos with Product ID's > 0xD4 return values unrelated to pressure in touch 1 pressure field. They also report 2nd touch X/Y values shifted down 1 byte (where pressure was). This results in jumpy 1 finger touch and totally invalid 2nd finger data. For touch detection, switch to a Touch Present single bit that all versions of Bamboo support. For touch 2 offset, calculate offset based on a bit that is set different between the two packet layouts. Since touch pressure reports were removed from driver, there was no need to be reading pressure any more. Signed-off-by: Chris Bagwell <chris@cnpbagwell.com> Reviewed-by: Ping Cheng <pinglinux@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-09-09Input: bcm5974 - add MacBookAir4,1 trackpad supportPieter-Augustijn Van Malleghem
This patch adds trackpad support for the MacBookAir4,1, released in July 2011. It is very similar to the MacBookAir4,2 patch submitted by Joshua Dillon and Chase Douglas. Signed-off-by: Pieter-Augustijn Van Malleghem <p-a@scarlet.be> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-09-08Input: wacom - add POINTER and DIRECT device propertiesJason Gerecke
Adds INPUT_PROP_POINTER or INPUT_PROP_DIRECT as necessary to the hardware supported by the Wacom driver. The DIRECT property is assigned to devices with an embedded screen (i.e. touchscreens and display tablets). The POINTER property is assigned to those without embedded screens. Signed-off-by: Jason Gerecke <killertofu@gmail.com> Reviewed-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-26Input: adp5588-keys - remove incorrect modaliasAxel Lin
For i2c drivers, we should use "i2c:" prefix for modalias. MODULE_DEVICE_TABLE will setup the modulalias for us, thus adding a MODULE_ALIAS is redundant (in addition to being incorrect). Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-26Input: cm109 - fix checking return value of usb_control_msgaxel lin
If successful, usb_control_msg returns the number of bytes transferred, otherwise a negative error number. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-26Input: wacom - advertise BTN_TOOL_PEN and BTN_STYLUS for PenPartnerJason Gerecke
The Wacom PenPartner should advertise its stylus tip and button in addition to the eraser tool. These are both physically present on the hardware, and emitted from 'wacom_penpartner_irq'. Signed-off-by: Jason Gerecke <killertofu@gmail.com> Reviewed-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-26Input: wacom - remove pressure for touch devicesPing Cheng
Touch devices do not report valid pressure or capacitance. Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ad714x - read the interrupt status registers in a row Input: ad714x - use DMA-safe buffers for spi_write() Input: ad714x - fix endianness issues Input: ad714xx-spi - force SPI bus into the default 8-bit mode Input: ep93xx_keypad - add missing include of linux/module.h Input: tnetv107x-ts - add missing include of linux/module.h Input: max11801_ts - correct license statement Input: atmel_mxt_ts - report pressure information from the driver Input: bcm5974 - Add support for newer MacBookPro8,2 Input: wacom - report id 3 returns 4 bytes of data Input: wacom - add WAC_MSG_RETRIES define Input: wacom - add support for the Wacom Bamboo Pen (CTL-660/K) Input: tegra-kbc - correct call to input_free_device Input: mpu3050 - correct call to input_free_device Input: bcm5974 - add support for touchpads found in MacBookAir4,2 Input: mma8450 - fix module device table type Input: remove CLOCK_TICK_RATE from analog joystick driver
2011-08-22Input: ad714x - read the interrupt status registers in a rowMichael Hennerich
The interrupt status registers should be read in row to avoid invalid data. Alter "read" method for both bus options to allow reading several registers in a row and make sure we read interrupt status registers properly. Read sequence saves 50% of bus transactions compared to single register reads. So use it also for the result registers, which are also located in a row. Also update copyright notice. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-22Input: ad714x - use DMA-safe buffers for spi_write()Dmitry Torokhov
spi_write() requires use of DMA-safe (cacheline aligned) buffers. Also use the same buffers when reading data since to avoid extra locking and potential memory allocation in spi_write_then_read(). Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-22Input: ad714x - fix endianness issuesMichael Hennerich
Allow driver to be used on Big Endian boxes. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-22Input: ad714xx-spi - force SPI bus into the default 8-bit modeMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-21Input: ep93xx_keypad - add missing include of linux/module.hAxel Lin
ep93xx_keypad.c uses interfaces from linux/module.h, so it should include that file. This patch fixes build errors. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-21Input: tnetv107x-ts - add missing include of linux/module.hAxel Lin
tnetv107x-ts.c uses interfaces from linux/module.h, so it should include that file. This patch fixes build errors. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-20Input: max11801_ts - correct license statementJiejing Zhang
The original license statement was confusing since it was unclear if the license was pure GPLv2 or GPLv2+ and did not match the license of the driver max11801_ts was derived from. The license is GPLv2+. Signed-off-by: Jiejing Zhang <jiejing.zhang@freescale.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16Input: atmel_mxt_ts - report pressure information from the driverYufeng Shen
Atmel mxt1386 touch controller has the touch pressure information so let's report it to the user space. [dtor@mail.ru: added ABS_RESSURE reporting for ST emulation.] Signed-off-by: Yufeng Shen <miletus@chromium.org> Acked-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16Input: bcm5974 - Add support for newer MacBookPro8,2Andrew Drake
New MacBook Pro devices reporting product name MacBookPro8,2 come with newer/higher resolution touchpads than others with the same product name with USB ID 05ac:0252. This patch adds support for these devices. Signed-off-by: Andrew Drake <adrake@adrake.org> Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16Input: wacom - report id 3 returns 4 bytes of dataPing Cheng
Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16Input: wacom - add WAC_MSG_RETRIES definePing Cheng
Use WAC_MSG_RETRIES define instead of a numeric constant. Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16Input: wacom - add support for the Wacom Bamboo Pen (CTL-660/K)Gerard Braad
Signed-off-by: Gerard Braad <me@gbraad.nl> Reviewed-by: Chris Bagwell <chris@cnpbagwell.com> Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-11Input: tegra-kbc - correct call to input_free_deviceAxel Lin
If kzalloc for kbc fails, then we have NULL pointer dereference while calling input_free_device(kbc->idev) in the error handling. So it is safer to always use the original name, input_dev. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-11Input: mpu3050 - correct call to input_free_deviceAxel Lin
input_free_device() should be used if input_register_device() was not called yet or if it failed. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-08Input: bcm5974 - add support for touchpads found in MacBookAir4,2Joshua V. Dillon
Added USB device IDs for MacBookAir4,2 trackpad. Device constants were copied from the MacBookAir3,2 constants. The 4,2 device specification is reportedly unchanged from the 3,2 predecessor and seems to work well. Signed-off-by: Joshua V Dillon <jvdillon@gmail.com> Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-08Input: mma8450 - fix module device table typeAxel Lin
The module device table for of_device_id should use "of" type. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-04Input: remove CLOCK_TICK_RATE from analog joystick driverDeepak Saxena
The analog joystick driver is written for x86 systems. This patch updates it to use the PIT_TICK_RATE value instead of CLOCK_TICK_RATE as they are equivalent on x86 and we want to deprecate the latter. Signed-off-by: Deepak Saxena <dsaxena@linaro.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ad7879 - fix deficient device disable Input: gpio_keys - fix two typos in devicetree documentation Input: mma8450 - add device tree probe support Input: gpio_keys - return proper error code if memory allocation fails Input: lm8323 - add missing device_remove_file for dev_attr_time Input: tegra-kbc - fix computation of polling time Input: kxtj9 - explicitly include module.h Input: psmouse - hgpk.c needs module.h
2011-08-02Input: ad7879 - fix deficient device disableMichael Hennerich
Input close or device disable should not interact with the exported gpiolib functionality. However that's the case. __ad7879_disable() clears the entire AD7879_REG_CTRL2, while it should just power down the ADC and its reference. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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