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path: root/drivers/input/rmi4/rmi_f11.c
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2020-11-09Input: synaptics-rmi4 - fix kerneldoc warningsLee Jones1-107/+129
Fixes the kerneldoc warnings from building the driver with W=1. Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20201104162427.2984742-2-lee.jones@linaro.org [dtor: folded together several Lee's patches; added more descriptions] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-03-24Input: synaptics-rmi4 - set reduced reporting mode only when requestedAndrew Duggan1-2/+2
The previous patch "c5ccf2ad3d33 (Input: synaptics-rmi4 - switch to reduced reporting mode)" enabled reduced reporting mode unintentionally on some devices, if the firmware was configured with default Delta X/Y threshold values. The result unintentionally degrade the performance of some touchpads. This patch checks to see that the driver is modifying the delta X/Y thresholds before modifying the reporting mode. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Fixes: c5ccf2ad3d33 ("Input: synaptics-rmi4 - switch to reduced reporting mode") Link: https://lore.kernel.org/r/20200312005549.29922-1-aduggan@synaptics.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-01-31Input: synaptics-rmi4 - switch to reduced reporting modeLucas Stach1-0/+14
When the distance thresholds are set the controller must be in reduced reporting mode for them to have any effect on the interrupt generation. This has a potentially large impact on the number of events the host needs to process. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Andrew Duggan <aduggan@synaptics.com> Link: https://lore.kernel.org/r/20200120111628.18376-1-l.stach@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-04Input: synaptics-rmi4 - remove unused result_bits maskAndrew Duggan1-4/+1
The result_bits mask is no longer used by the driver and should be removed. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Link: https://lore.kernel.org/r/20191025002527.3189-4-aduggan@synaptics.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-04Input: synaptics-rmi4 - do not consume more data than we have (F11, F12)Andrew Duggan1-2/+2
Currently, rmi_f11_attention() and rmi_f12_attention() functions update the attn_data data pointer and size based on the size of the expected size of the attention data. However, if the actual valid data in the attn buffer is less then the expected value then the updated data pointer will point to memory beyond the end of the attn buffer. Using the calculated valid_bytes instead will prevent this from happening. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20191025002527.3189-3-aduggan@synaptics.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-26Input: synaptics-rmi4 - write config register values to the right offsetLucas Stach1-1/+1
Currently any changed config register values don't take effect, as the function to write them back is called with the wrong register offset. Fixes: ff8f83708b3e (Input: synaptics-rmi4 - add support for 2D sensors and F11) Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-27Merge branch 'for-linus' of ↵Linus Torvalds1-26/+16
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - the main change is a fix for my brain-dead patch to PS/2 button reporting for some protocols that made it in 4.17 - there is a new driver for Spreadtum vibrator that I intended to send during merge window but ended up not sending the 2nd pull request. Given that this is a brand new driver we should not see regressions here - a fixup to Elantech PS/2 driver to avoid decoding errors on Thinkpad P52 - addition of few more ACPI IDs for Silead and Elan drivers - RMI4 is switched to using IRQ domain code instead of rolling its own implementation * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: psmouse - fix button reporting for basic protocols Input: xpad - fix GPD Win 2 controller name Input: elan_i2c_smbus - fix more potential stack buffer overflows Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID Input: elantech - fix V4 report decoding for module with middle key Input: elantech - enable middle button of touchpads on ThinkPad P52 Input: do not assign new tracking ID when changing tool type Input: make input_report_slot_state() return boolean Input: synaptics-rmi4 - fix axis-swap behavior Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts() Input: synaptics-rmi4 - convert irq distribution to irq_domain Input: silead - add MSSL0002 ACPI HID Input: goldfish_events - fix checkpatch warnings Input: add Spreadtrum vibrator driver
2018-06-12treewide: devm_kzalloc() -> devm_kcalloc()Kees Cook1-7/+8
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc(). This patch replaces cases of: devm_kzalloc(handle, a * b, gfp) with: devm_kcalloc(handle, a * b, gfp) as well as handling cases of: devm_kzalloc(handle, a * b * c, gfp) with: devm_kzalloc(handle, array3_size(a, b, c), gfp) as it's slightly less ugly than: devm_kcalloc(handle, array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: devm_kzalloc(handle, 4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. Some manual whitespace fixes were needed in this patch, as Coccinelle really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...". The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ expression HANDLE; type TYPE; expression THING, E; @@ ( devm_kzalloc(HANDLE, - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | devm_kzalloc(HANDLE, - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression HANDLE; expression COUNT; typedef u8; typedef __u8; @@ ( devm_kzalloc(HANDLE, - sizeof(u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ expression HANDLE; type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ expression HANDLE; identifier SIZE, COUNT; @@ - devm_kzalloc + devm_kcalloc (HANDLE, - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression HANDLE; expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression HANDLE; expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ expression HANDLE; identifier STRIDE, SIZE, COUNT; @@ ( devm_kzalloc(HANDLE, - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression HANDLE; expression E1, E2, E3; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression HANDLE; expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, sizeof(THING) * C2, ...) | devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...) | devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, C1 * C2, ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * E2 + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * (E2) + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-05Input: synaptics-rmi4 - convert irq distribution to irq_domainNick Dyer1-26/+16
Convert the RMI driver to use the standard mechanism for distributing IRQs to the various functions. Tested on: * S7300 (F11, F34, F54) * S7817 (F12, F34, F54) Signed-off-by: Nick Dyer <nick@shmanahar.org> Acked-by: Christopher Heiny <cheiny@synaptics.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-12-17Merge branch 'for-linus' of ↵Linus Torvalds1-24/+74
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem updates from Dmitry Torokhov: - updated support for Synaptics RMI4 devices, including support for SMBus controllers, firmware update support, sensor tuning, and PS/2 guest support - ALPS driver now supports tracksticks on SS5 controllers - i8042 now uses chassis info to skip selftest on Asus laptops as list of individual models became too unwieldy - miscellaneous fixes to other drivers * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (67 commits) Input: imx6ul_tsc - generalize the averaging property Input: drv260x - use generic device properties Input: drv260x - use temporary for &client->dev Input: drv260x - fix input device's parent assignment Input: synaptics-rmi4 - add support for F34 V7 bootloader Input: drv260x - fix initializing overdrive voltage Input: ALPS - fix protcol -> protocol Input: i8042 - comment #else/#endif of CONFIG_PNP Input: lpc32xx-keys - fix invalid error handling of a requested irq Input: synaptics-rmi4 - fix debug for sensor clip Input: synaptics-rmi4 - store the attn data in the driver Input: synaptics-rmi4 - allow to add attention data Input: synaptics-rmi4 - f03 - grab data passed by transport device Input: synaptics-rmi4 - add support for F03 Input: imx6ul_tsc - convert int to u32 Input: imx6ul_tsc - add mask when set REG_ADC_CFG Input: synaptics-rmi4 - have only one struct platform data Input: synaptics-rmi4 - remove EXPORT_SYMBOL_GPL for internal functions Input: synaptics-rmi4 - remove mutex calls while updating the firmware Input: drv2667 - fix misuse of regmap_update_bits ...
2016-12-02Input: synaptics-rmi4 - store the attn data in the driverBenjamin Tissoires1-6/+6
Now that we have a proper API to set the attention data, there is no point in keeping it in the transport driver. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-11-30Input: synaptics-rmi4 - have only one struct platform dataBenjamin Tissoires1-2/+2
If struct rmi_device_platform_data contains pointers to other struct, it gets difficult to allocate a fixed size struct and copy it over between drivers. Change the pointers into a struct and change the code in rmi4 accordingly. Reviewed-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-11-08Input: synaptics-rmi4 - add parameters for dribble packets and palm detect ↵Andrew Duggan1-4/+28
gesture The rmi_f11 driver currently disables dribble packets and the palm detect gesture for all devices. This patch creates a parameter in the 2d sensor platform data for controlling this functionality on a per device basis. For more information on dribble packets: Commit 05ba999fcabb ("HID: rmi: disable dribble packets on Synaptics touchpads") For more information on the palm detect gesture: Commit f097deef59a6 ("HID: rmi: disable palm detect gesture when present") Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-11-08Input: synaptics-rmi4 - handle incomplete input dataAndrew Duggan1-14/+40
Commit 5b65c2a02966 ("HID: rmi: check sanity of the incoming report") added support for handling incomplete HID reports do to the input data being corrupted in transit. This patch reimplements this functionality in the function drivers so they can handle getting less valid data then they expect. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-10-11treewide: remove redundant #include <linux/kconfig.h>Masahiro Yamada1-1/+0
Kernel source files need not include <linux/kconfig.h> explicitly because the top Makefile forces to include it with: -include $(srctree)/include/linux/kconfig.h This commit removes explicit includes except the following: * arch/s390/include/asm/facilities_src.h * tools/testing/radix-tree/linux/kernel.h These two are used for host programs. Link: http://lkml.kernel.org/r/1473656164-11929-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-14Input: synaptics-rmi4 - use the RMI_F11_REL_BYTES define in ↵Andrew Duggan1-2/+2
rmi_f11_rel_pos_report The size of relative data in F11 is already defined by RMI_F11_REL_BYTES. Use the define in rmi_f11_rel_pos_report() to be consistent. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Reviewed-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-07-14Input: synaptics-rmi4 - remove unneeded variableAndrew Duggan1-4/+1
Remove the data_base_addr_offset variable in rmi_f11_attention(). The f11 data is read as a single block so there is no need to store an offset to the data address. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-15Input: synaptics-rmi4 - using logical instead of bitwise ANDDan Carpenter1-2/+2
There is a typo so we have && instead of &. Fixes: ff8f83708b3e ('Input: synaptics-rmi4 - add support for 2D sensors and F11') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10Input: synaptics-rmi4 - add device tree support for 2d sensors and F11Andrew Duggan1-1/+6
2D sensors have several parameter which can be set in the platform data. This patch adds support for getting those values from devicetree. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10Input: synaptics-rmi4 - add support for 2D sensors and F11Andrew Duggan1-0/+1312
RMI4 currently defines two functions for reporting data for 2D sensors (F11 and F12). This patch adds the common functionality which is shared by devices with 2D reporting along with implementing functionality for F11. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Christopher Heiny <cheiny@synaptics.com> Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>