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2012-09-04Input: usbtouchscreen - initialize eGalax devicesForest Bond1-0/+40
Certain eGalax devices expose an interface with class HID and protocol None. Some work with usbhid and some work with usbtouchscreen, but there is no easy way to differentiate. Sending an eGalax diagnostic packet seems to kick them all into using the right protocol for usbtouchscreen, so we can continue to bind them all there (as opposed to handing some off to usbhid). This fixes a regression for devices that were claimed by (and worked with) usbhid prior to commit 139ebe8dc80dd74cb2ac9f5603d18fbf5cff049f ("Input: usbtouchscreen - fix eGalax HID ignoring"), which made usbtouchscreen claim them instead. With this patch they will still be claimed by usbtouchscreen, but they will actually report events usbtouchscreen can understand. Note that these devices will be limited to the usbtouchscreen feature set so e.g. dual touch features are not supported. I have the distinct pleasure of needing to support devices of both types and have tested accordingly. Signed-off-by: Forest Bond <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-08-21Input: wacom - add support for EMR on Cintiq 24HD touchJason Gerecke1-1/+5
Adds support for the EMR digitizer on the Cintiq 24HD touch. The EMR digitizer should work identically to that found on the Cintiq 24HD. The touch digitizer is a separate USB device similar to how we split apart some other devices. Signed-off-by: Jason Gerecke <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-08-21Input: i8042 - add Gigabyte T1005 series netbooks to noloop tableDmitry Torokhov1-0/+14
They all define their chassis type as "Other" and therefore are not categorized as "laptops" by the driver, which tries to perform AUX IRQ delivery test which fails and causes touchpad not working. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42620 Cc: [email protected] Signed-off-by: Dmitry Torokhov <[email protected]>
2012-08-21Input: imx_keypad - reset the hardware before enablingMichael Grzeschik1-0/+3
Ensure the hardware is correctly initialized before requesting the interrupt, otherwise if a key was already touched since power-on the kernel enters an interrupt loop. To fix this issue we clear pending interrupt sources. We also have to make sure clk is enabled while changing the keypad registers. Signed-off-by: Michael Grzeschik <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-08-21Input: edt-ft5x06 - fix build error when compiling wthout CONFIG_DEBUG_FSGuenter Roeck1-1/+1
This fixes the following breakage: edt-ft5x06.c: In function edt_ft5x06_ts_remove: edt-ft5x06.c:846:14: error: struct edt_ft5x06_ts_data has no member named raw_buffer Signed-off-by: Guenter Roeck <[email protected]> Acked-by: Simon Budig <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-29Merge branch 'next' into for-linusDmitry Torokhov8-3/+1033
Prepare second set of changes for 3.6 merge window.
2012-07-24Input: synaptics - handle out of bounds values from the hardwareSeth Forshee1-0/+22
The touchpad on the Acer Aspire One D250 will report out of range values in the extreme lower portion of the touchpad. These appear as abrupt changes in the values reported by the hardware from very low values to very high values, which can cause unexpected vertical jumps in the position of the mouse pointer. What seems to be happening is that the value is wrapping to a two's compliment negative value of higher resolution than the 13-bit value reported by the hardware, with the high-order bits being truncated. This patch adds handling for these values by converting them to the appropriate negative values. The only tricky part about this is deciding when to treat a number as negative. It stands to reason that if out of range values can be reported on the low end then it could also happen on the high end, so not all out of range values should be treated as negative. The approach taken here is to split the difference between the maximum legitimate value for the axis and the maximum possible value that the hardware can report, treating values greater than this number as negative and all other values as positive. This can be tweaked later if hardware is found that operates outside of these parameters. BugLink: http://bugs.launchpad.net/bugs/1001251 Cc: [email protected] Signed-off-by: Seth Forshee <[email protected]> Reviewed-by: Daniel Kurtz <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-24Input: wacom - add support to Cintiq 22HDPing Cheng2-3/+21
Signed-off-by: Ping Cheng <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-24Input: add driver for FT5x06 based EDT displaysSimon Budig5-0/+990
This is a driver for the EDT "Polytouch" family of touch controllers based on the FocalTech FT5x06 line of chips. Signed-off-by: Simon Budig <[email protected]> Reviewed-by: Henrik Rydberg <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-24Merge branch 'next' into for-linusDmitry Torokhov9398-328861/+542006
2012-07-17Input: add MELFAS mms114 touchscreen driverJoonyoung Shim4-0/+581
This is a initial driver for new touchscreen chip mms114 of MELFAS. It uses I2C interface and supports 10 multi touch. Signed-off-by: Joonyoung Shim <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-17Input: add support for key scan interface of the LPC32xx SoCRoland Stigge4-0/+433
This is a driver for the key scan interface of the LPC32xx SoC Signed-off-by: Roland Stigge <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-17Input: omap4-keypad - add device tree supportSourav Poddar2-40/+118
Add device tree support for omap4 keypad driver and update the Documentation with omap4 keypad device tree binding information. Tested on omap4430 sdp. Signed-off-by: Sourav Poddar <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-13Input: hanwang - add support for Art Master II tabletweixing1-15/+42
This change adds support for old Hanwang Art master II tablet Signed-off-by: weixing <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-13Input: spear_keyboard - reconfigure operating frequency on suspendShiraz Hashim2-2/+46
On some platform it may happen that the input clock to keyboard may change during suspend, thus impacting its wakeup capability. There is no means for keyboard driver to know this frequency before hand. Hence introduce a platform data 'suspended_rate' which indicates the frequency during suspend at which keyboard operates. Accordingly reprogram keyboard while going into suspend and restore original configuration at the time of resume. Signed-off-by: Shiraz Hashim <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-13Input: spear_keyboard - fix clock handling during suspend/resumeShiraz Hashim1-8/+10
SPEAr keyboard should normally disable clock during suspend and enable it during resume. For cases where it is expected to act as a wakeup source the clock can remain in the same state i.e. kept enabled if it is being used. Signed-off-by: Shiraz Hashim <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-12Input: xpad - add Andamiro Pump It Up padYuri Khan1-0/+1
I couldn't find the vendor ID in any of the online databases, but this mat has a Pump It Up logo on the top side of the controller compartment, and a disclaimer stating that Andamiro will not be liable on the bottom. Signed-off-by: Yuri Khan <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-11Input: xpad - add signature for Razer Onza Tournament EditionIlia Katsnelson1-1/+3
Signed-off-by: Ilia Katsnelson <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-11Input: xpad - handle all variations of Mad Catz Beat PadYuri Khan3-0/+5
The device should be handled by xpad driver instead of generic HID driver. Signed-off-by: Yuri Khan <[email protected]> Acked-by: Jiri Kosina <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-10Input: bcm5974 - Add support for 2012 MacBook Pro RetinaHenrik Rydberg1-0/+20
Add support for the 15'' MacBook Pro Retina model (MacBookPro10,1). Patch originally written by clipcarl (forums.opensuse.org). Signed-off-by: Henrik Rydberg <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-10HID: add support for 2012 MacBook Pro RetinaRyan Bourgeois3-0/+15
Add support for the 15'' MacBook Pro Retina. The keyboard is the same as recent models. The patch needs to be synchronized with the bcm5974 patch for the trackpad - as usual. Patch originally written by clipcarl (forums.opensuse.org). [[email protected]: Amended mouse ignore lines] Signed-off-by: Ryan Bourgeois <[email protected]> Signed-off-by: Henrik Rydberg <[email protected]> Acked-by: Jiri Kosina <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Input: ff-memless - fix a couple min_t() castsDan Carpenter1-2/+2
envelope->attack_level is a u16 type. We're trying to clamp it here so it's between 0 and 0x7fff. Unfortunately, the cast to __s16 turns all the values larger than 0x7fff into negative numbers and min_t() thinks they are less than 0x7fff. envelope_level is an int so now we've got negative values stored there. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Input: synaptics - print firmware ID and board number at initDaniel Kurtz2-2/+39
Read the Firmware ID and Board Number from a synaptics device at init and display them in the system log. Device behavior is very board and firmware dependent. It may prove useful for users to include this information when providing bug reports or other feedback. Signed-off-by: Daniel Kurtz <[email protected]> Acked-by: Henrik Rydberg <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Input: spear_keyboard - generalize keyboard frequency configurationShiraz Hashim1-6/+7
Current implementation hard coded keyboard frequency configuration assuming input clock as fixed APB (83 MHz). Generalize the configuration using clock framework APIs. Signed-off-by: Shiraz Hashim <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Input: spear_keyboard - rename bit definitions to reflect registerShiraz Hashim1-25/+27
Rename bit definition macros to reflect keyboard registers clearly thus being more readable. Signed-off-by: Shiraz Hashim <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Input: spear_keyboard - use correct io accessorsShiraz Hashim1-15/+15
All SPEAr keyboard registers are 32 bit wide and are word aligned. This patch aligns all io access to be word size using relaxed version of readl/writel. Signed-off-by: Shiraz Hashim <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Input: spear-keyboard - fix disable device_init_wakeup in removeVipul Kumar Samar1-1/+1
This patch is to disable device wakeup while removing keyboard. Signed-off-by: Vipul Kumar Samar <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Input: wacom_i2c - fix compiler warningDmitry Torokhov1-1/+1
Apparently GCC can't figure out that we bail if we fail to query device and will not try to use 'features': drivers/input/touchscreen/wacom_i2c.c: In function ‘wacom_i2c_probe’: drivers/input/touchscreen/wacom_i2c.c:177:20: warning: ‘features.fw_version’ may be used uninitialized in this function [-Wmaybe-uninitialized] Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-07Pull input changes from Henrik Rydberg, including large update toDmitry Torokhov4-252/+339
atmel_mxt_ts driver by Daniel and MT protocol addition for win8 devices. Conflicts: drivers/input/touchscreen/atmel_mxt_ts.c
2012-07-07Merge branch 'for-linus' to bring in change ensuring that drivers thatDmitry Torokhov19-25/+39
use threaded IRQs use IRQF_ONESHOT.
2012-07-06Input: imx_keypad - check error returned by clk_prepare_enable()Fabio Estevam1-5/+14
Check error returned by clk_prepare_enable(). Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-06Input: imx_keypad - adapt the new kpp clock nameFabio Estevam1-1/+1
With the new i.mx clock framework we should pass NULL as the keypad clock name. Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-06Input: imx_keypad - use clk_prepare_enable/clk_disable_unprepare()Fabio Estevam1-4/+4
Adapt clock handling to the new i.mx clock framework and fix the following warning: input: imx-keypad as /devices/platform/imx-keypad/input/input0 ------------[ cut here ]------------ WARNING: at drivers/clk/clk.c:511 __clk_enable+0x98/0xa8() Modules linked in: [<c001a680>] (unwind_backtrace+0x0/0xf4) from [<c002452c>] (warn_slowpath_commo) [<c002452c>] (warn_slowpath_common+0x48/0x60) from [<c0024560>] (warn_slowpath_) [<c0024560>] (warn_slowpath_null+0x1c/0x24) from [<c02c4ec4>] (__clk_enable+0x9) [<c02c4ec4>] (__clk_enable+0x98/0xa8) from [<c02c4ef8>] (clk_enable+0x24/0x5c) [<c02c4ef8>] (clk_enable+0x24/0x5c) from [<c027ac6c>] (imx_keypad_open+0x28/0xc) [<c027ac6c>] (imx_keypad_open+0x28/0xc8) from [<c0274b14>] (input_open_device+0) [<c0274b14>] (input_open_device+0x78/0xa8) from [<c01ec884>] (kbd_connect+0x60/) [<c01ec884>] (kbd_connect+0x60/0x80) from [<c0273b94>] (input_attach_handler+0x) [<c0273b94>] (input_attach_handler+0x220/0x258) from [<c02755d4>] (input_regist) [<c02755d4>] (input_register_device+0x31c/0x390) from [<c038da1c>] (imx_keypad_) [<c038da1c>] (imx_keypad_probe+0x2e4/0x3b8) from [<c020326c>] (platform_drv_pro) [<c020326c>] (platform_drv_probe+0x18/0x1c) from [<c0201f64>] (driver_probe_dev) [<c0201f64>] (driver_probe_device+0x84/0x210) from [<c020217c>] (__driver_attac) [<c020217c>] (__driver_attach+0x8c/0x90) from [<c02008f8>] (bus_for_each_dev+0x) [<c02008f8>] (bus_for_each_dev+0x68/0x90) from [<c0201064>] (bus_add_driver+0xa) [<c0201064>] (bus_add_driver+0xa4/0x23c) from [<c020275c>] (driver_register+0x7) [<c020275c>] (driver_register+0x78/0x12c) from [<c00087c0>] (do_one_initcall+0x) [<c00087c0>] (do_one_initcall+0x34/0x188) from [<c04b9310>] (kernel_init+0xe4/0) [<c04b9310>] (kernel_init+0xe4/0x1a8) from [<c0015bd8>] (kernel_thread_exit+0x0) ---[ end trace 1d550e891d03d7ce ]--- Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-06Input: ad7879 - add option to correct xy axisMichael Hennerich2-0/+7
Sebastian Zenker reported that driver swaps x and y samples when the touchscreen leads are connected in accordance with the datasheet specification. Transposed axis can be typically corrected by touch screen calibration however this bug also negatively influences touch pressure measurements. Add an option to correct x and y axis. Signed-off-by: Michael Hennerich <[email protected]> Reported-and-tested-by: Sebastian Zenker <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-06Input: synaptics_usb - Remove TrackPoint name trailing whitespaceBob Ross1-1/+1
The USB TrackPoint name string contains a space at the trailing end that can cause confusion/difficulty when creating udev rules. Example: "Synaptics Inc. Composite TouchPad / TrackPoint (Stick) " This patch removes the trailing space. Signed-off-by: Bob Ross <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-07-05Revert "Input: atmel_mxt_ts - warn if sysfs could not be created"Henrik Rydberg1-1/+4
Dmitry: I understand that I am a bit late to the party :) but I do not agree with this change. Failure to create attributes is not sometihng that user could cause (at least not easily) and thus would not be a setup issue but something more severe. I believe we should fail loading the driver so sysfs attribute breakage will be noticed as soon as possible, instead of discovering it much much later in the process. This reverts commit 639900380062ecd78ee8b265ea23929c565469b4. Requested-by: Dmitry Torokhov <[email protected]> Signed-off-by: Henrik Rydberg <[email protected]>
2012-07-05Input: MT - Include win8 supportHenrik Rydberg2-29/+97
The newly released HID protocol for win8 multitouch devices is capable of transmitting more information about each touch. In particular, it includes details useful for touch alignment. This patch completes the MT protocol with the ABS_MT_TOOL_X/Y events, and documents how to map win8 devices. Cc: Stephane Chatty <[email protected]> Cc: Benjamin Tissoires <[email protected]> Cc: Peter Hutterer <[email protected]> Acked-by: Chase Douglas <[email protected]> Signed-off-by: Henrik Rydberg <[email protected]>
2012-07-04Merge commit 'v3.5-rc5' into nextDmitry Torokhov9369-328360/+540169
2012-07-04Input: request threaded-only IRQs with IRQF_ONESHOTLars-Peter Clausen17-23/+34
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. This patch adds the IRQF_ONESHOT to input drivers where it is missing. Not modified by this patch are those drivers where the requested IRQ will always be a nested IRQ (e.g. because it's part of an MFD), since for this special case IRQF_ONESHOT is not required to be specified when requesting the IRQ. Signed-off-by: Lars-Peter Clausen <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2012-06-30Linux 3.5-rc5Linus Torvalds1-1/+1
2012-06-30Merge tag 'fixes-for-linus' of ↵Linus Torvalds14-19/+37
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Another week, another batch of fixes. All are small, contained, targeted fixes for explicit problems -- mostly build and boot failures across i.MX, OMAP, Renesas/Shmobile and Samsung." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: imx6q: fix suspend regression caused by common clk migration ARM: OMAP4470: Fix OMAP4470 boot failure ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n ARM: shmobile: r8a7779: Route all interrupts to ARM ARM: shmobile: kzm9d: use late init machine hook ARM: shmobile: kzm9g: use late init machine hook ARM: mach-shmobile: armadillo800eva: Use late init machine hook ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled ARM: shmobile: sh7372: bugfix: chclr_offset base ARM: shmobile: sh73a0: bugfix: SY-DMAC number ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL
2012-06-30printk.c: fix kernel-doc warningsRandy Dunlap1-1/+1
Fix kernel-doc warnings in printk.c: use correct parameter name. Warning(kernel/printk.c:2429): No description found for parameter 'buf' Warning(kernel/printk.c:2429): Excess function parameter 'line' description in 'kmsg_dump_get_buffer' Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-06-30linux/irq.h: fix kernel-doc warningRandy Dunlap1-2/+0
Fix kernel-doc warning. This struct member was removed in commit 875682648b89 ("irq: Remove irq_chip->release()") so remove its associated kernel-doc entry also. Warning(include/linux/irq.h:338): Excess struct/union/enum/typedef member 'release' description in 'irq_chip' Signed-off-by: Randy Dunlap <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-06-30Merge branch 'v3.5-samsung-fixes-1' of ↵Olof Johansson3-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes * 'v3.5-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL
2012-06-30ARM: imx6q: fix suspend regression caused by common clk migrationShawn Guo1-2/+4
When moving to common clk framework, the imx6q clks rom and mmdc_ch1_axi get different on/off states than old clk driver, which breaks suspend function. There might be a better way to manage these clocks, but let's takes the old clk driver approach to fix the regression first. Signed-off-by: Shawn Guo <[email protected]> Signed-off-by: Olof Johansson <[email protected]>
2012-06-30Merge tag 'omap-fixes-for-v3.5-rc4' of ↵Olof Johansson2-6/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes From Tony Lindgren: "Here's one more regression fix that I missed earlier, and a trivial fix to get omap4470 booting." * tag 'omap-fixes-for-v3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP4470: Fix OMAP4470 boot failure ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n
2012-06-30Merge branch 'release' of ↵Linus Torvalds8-21/+59
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull ACPI & Power Management patches from Len Brown. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: acpi_pad: fix power_saving thread deadlock ACPI video: Still use ACPI backlight control if _DOS doesn't exist ACPI, APEI, Avoid too much error reporting in runtime ACPI: Add a quirk for "AMILO PRO V2030" to ignore the timer overriding ACPI: Remove one board specific WARN when ignoring timer overriding ACPI: Make acpi_skip_timer_override cover all source_irq==0 cases ACPI, x86: fix Dell M6600 ACPI reboot regression via DMI ACPI sysfs.c strlen fix
2012-06-30Merge tag 'driver-core-3.5-rc5' of ↵Linus Torvalds2-84/+219
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver Core fixes from Greg Kroah-Hartman: "Here is a number of printk() fixes, specifically a few reported by the crazy blog program that ships in SUSE releases (that's "boot log" and not "web log", it predates the general "blog" terminology by many years), and the restoration of the continuation line functionality reported by Stephen and others. Yes, the changes seem a bit big this late in the cycle, but I've been beating on them for a while now, and Stephen has even optimized it a bit, so all looks good to me. The other change in here is a Documentation update for the stable kernel rules describing how some distro patches should be backported, to hopefully drive a bit more response from the distros to the stable kernel releases. Signed-off-by: Greg Kroah-Hartman <[email protected]>" * tag 'driver-core-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: printk: Optimize if statement logic where newline exists printk: flush continuation lines immediately to console syslog: fill buffer with more than a single message for SYSLOG_ACTION_READ Revert "printk: return -EINVAL if the message len is bigger than the buf size" printk: fix regression in SYSLOG_ACTION_CLEAR stable: Allow merging of backports for serious user-visible performance issues
2012-06-30Merge branches 'acpi_pad-bugzilla-42981', 'apei-bugzilla-43282', ↵Len Brown8980-322932/+529713
'video-bugzilla-43168', 'bugzilla-40002' and 'bugfix-misc' into release bug fixes
2012-06-30acpi_pad: fix power_saving thread deadlockStuart Hayes1-3/+4
The acpi_pad driver can get stuck in destroy_power_saving_task() waiting for kthread_stop() to stop a power_saving thread. The problem is that the isolated_cpus_lock mutex is owned when destroy_power_saving_task() calls kthread_stop(), which waits for a power_saving thread to end, and the power_saving thread tries to acquire the isolated_cpus_lock when it calls round_robin_cpu(). This patch fixes the issue by making round_robin_cpu() use its own mutex. https://bugzilla.kernel.org/show_bug.cgi?id=42981 Cc: [email protected] Signed-off-by: Stuart Hayes <[email protected]> Signed-off-by: Len Brown <[email protected]>
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