summaryrefslogtreecommitdiff
path: root/drivers/extcon
AgeCommit message (Collapse)Author
2012-10-02Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds
Pull workqueue changes from Tejun Heo: "This is workqueue updates for v3.7-rc1. A lot of activities this round including considerable API and behavior cleanups. * delayed_work combines a timer and a work item. The handling of the timer part has always been a bit clunky leading to confusing cancelation API with weird corner-case behaviors. delayed_work is updated to use new IRQ safe timer and cancelation now works as expected. * Another deficiency of delayed_work was lack of the counterpart of mod_timer() which led to cancel+queue combinations or open-coded timer+work usages. mod_delayed_work[_on]() are added. These two delayed_work changes make delayed_work provide interface and behave like timer which is executed with process context. * A work item could be executed concurrently on multiple CPUs, which is rather unintuitive and made flush_work() behavior confusing and half-broken under certain circumstances. This problem doesn't exist for non-reentrant workqueues. While non-reentrancy check isn't free, the overhead is incurred only when a work item bounces across different CPUs and even in simulated pathological scenario the overhead isn't too high. All workqueues are made non-reentrant. This removes the distinction between flush_[delayed_]work() and flush_[delayed_]_work_sync(). The former is now as strong as the latter and the specified work item is guaranteed to have finished execution of any previous queueing on return. * In addition to the various bug fixes, Lai redid and simplified CPU hotplug handling significantly. * Joonsoo introduced system_highpri_wq and used it during CPU hotplug. There are two merge commits - one to pull in IRQ safe timer from tip/timers/core and the other to pull in CPU hotplug fixes from wq/for-3.6-fixes as Lai's hotplug restructuring depended on them." Fixed a number of trivial conflicts, but the more interesting conflicts were silent ones where the deprecated interfaces had been used by new code in the merge window, and thus didn't cause any real data conflicts. Tejun pointed out a few of them, I fixed a couple more. * 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (46 commits) workqueue: remove spurious WARN_ON_ONCE(in_irq()) from try_to_grab_pending() workqueue: use cwq_set_max_active() helper for workqueue_set_max_active() workqueue: introduce cwq_set_max_active() helper for thaw_workqueues() workqueue: remove @delayed from cwq_dec_nr_in_flight() workqueue: fix possible stall on try_to_grab_pending() of a delayed work item workqueue: use hotcpu_notifier() for workqueue_cpu_down_callback() workqueue: use __cpuinit instead of __devinit for cpu callbacks workqueue: rename manager_mutex to assoc_mutex workqueue: WORKER_REBIND is no longer necessary for idle rebinding workqueue: WORKER_REBIND is no longer necessary for busy rebinding workqueue: reimplement idle worker rebinding workqueue: deprecate __cancel_delayed_work() workqueue: reimplement cancel_delayed_work() using try_to_grab_pending() workqueue: use mod_delayed_work() instead of __cancel + queue workqueue: use irqsafe timer for delayed_work workqueue: clean up delayed_work initializers and add missing one workqueue: make deferrable delayed_work initializer names consistent workqueue: cosmetic whitespace updates for macro definitions workqueue: deprecate system_nrt[_freezable]_wq workqueue: deprecate flush[_delayed]_work_sync() ...
2012-10-01Merge tag 'driver-core-3.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core merge from Greg Kroah-Hartman: "Here is the big driver core update for 3.7-rc1. A number of firmware_class.c updates (as you saw a month or so ago), and some hyper-v updates and some printk fixes as well. All patches that are outside of the drivers/base area have been acked by the respective maintainers, and have all been in the linux-next tree for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'driver-core-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits) memory: tegra{20,30}-mc: Fix reading incorrect register in mc_readl() device.h: Add missing inline to #ifndef CONFIG_PRINTK dev_vprintk_emit memory: emif: Add ifdef CONFIG_DEBUG_FS guard for emif_debugfs_[init|exit] Documentation: Fixes some translation error in Documentation/zh_CN/gpio.txt Documentation: Remove 3 byte redundant code at the head of the Documentation/zh_CN/arm/booting Documentation: Chinese translation of Documentation/video4linux/omap3isp.txt device and dynamic_debug: Use dev_vprintk_emit and dev_printk_emit dev: Add dev_vprintk_emit and dev_printk_emit netdev_printk/netif_printk: Remove a superfluous logging colon netdev_printk/dynamic_netdev_dbg: Directly call printk_emit dev_dbg/dynamic_debug: Update to use printk_emit, optimize stack driver-core: Shut up dev_dbg_reatelimited() without DEBUG tools/hv: Parse /etc/os-release tools/hv: Check for read/write errors tools/hv: Fix exit() error code tools/hv: Fix file handle leak Tools: hv: Implement the KVP verb - KVP_OP_GET_IP_INFO Tools: hv: Rename the function kvp_get_ip_address() Tools: hv: Implement the KVP verb - KVP_OP_SET_IP_INFO Tools: hv: Add an example script to configure an interface ...
2012-09-28Merge remote-tracking branches 'regulator/topic/core', ↵Mark Brown
'regulator/topic/bypass', 'regulator/topic/tol', 'regulator/topic/drivers' and 'regulator/topic/tps6586x' into regulator-next
2012-09-16Merge 3.6-rc7 into driver-core-nextGreg Kroah-Hartman
This pulls in the fixes in that branch that are needed here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-16Merge tag 'mfd-for-linus-3.6-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull mfd fixes from Samuel Ortiz: "This is the remaining MFD fixes for 3.6, with 5 pending fixes: - A tps65217 build error fix. - A lcp_ich regression fix caused by the MFD driver failing to initialize the watchdog sub device due to ACPI conflicts. - 2 MAX77693 interrupt handling bug fixes. - An MFD core fix, adding an IRQ domain argument to the MFD device addition API in order to prevent silent and potentially harmful remapping behaviour changes for drivers supporting non-DT platforms." * tag 'mfd-for-linus-3.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: MAX77693: Fix NULL pointer error when initializing irqs mfd: MAX77693: Fix interrupt handling bug mfd: core: Push irqdomain mapping out into devices mfd: lpc_ich: Fix a 3.5 kernel regression for iTCO_wdt driver mfd: Move tps65217 regulator plat data handling to regulator
2012-09-15mfd: MAX77693: Fix NULL pointer error when initializing irqsChanwoo Choi
This patch initialize register map of MUIC device because mfd driver of Maxim MAX77693 use regmap-muic instance of MUIC device when irqs of Maxim MAX77693 is initialized before call max77693-muic probe() function. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-10extcon: arizona: Use bypass mode for MICVDDMark Brown
We can perform microphone detection with MICVDD in bypass mode so try to enable that during startup for minimal power - other users or machine constraints will prevent bypass mode being activated if it is unsuitable. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-06extcon: use IRQF_ONESHOTFengguang Wu
Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci Make sure threaded IRQs without a primary handler are always requested with IRQF_ONESHOT. Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05extcon: extcon-arizona depends on INPUTRandy Dunlap
extcon-arizona uses input_*() functions so it should depend on INPUT. ERROR: "input_event" [drivers/extcon/extcon-arizona.ko] undefined! ERROR: "input_free_device" [drivers/extcon/extcon-arizona.ko] undefined! ERROR: "input_register_device" [drivers/extcon/extcon-arizona.ko] undefined! ERROR: "input_set_capability" [drivers/extcon/extcon-arizona.ko] undefined! ERROR: "input_allocate_device" [drivers/extcon/extcon-arizona.ko] undefined! ERROR: "input_unregister_device" [drivers/extcon/extcon-arizona.ko] undefined! Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05extcon: adc_jack: adc-jack driver to support 3.5 pi or simliar devicesanish kumar
External connector devices that decides connection information based on ADC values may use adc-jack device driver. The user simply needs to provide a table of adc range and connection states. Then, extcon framework will automatically notify others. Changes in V1: added Lars-Peter Clausen suggested changes: Using macros to get rid of boiler plate code such as devm_kzalloc and module_platform_driver.Other changes suggested are related to coding guidelines. Changes in V2: Removed some unnecessary checks and changed the way we are un-regitering extcon and freeing the irq while removing. Changes in V3: Renamed the files to comply with extcon naming. Changes in V4: Added the cancel_work_sync during removing of driver. Changes in V5: Added the dependency of IIO in Kconfig. Changes in V6: Some nitpicks related to naming. Changes in this version: V6 patch version patch broke the build: ERROR: "extcon_cable_name" [drivers/extcon/extcon-adc-jack.ko] undefined! Fixed it in this version. Acked-by: Jonathan Cameron <jic23@kernel.org> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: anish kumar <anish.singh@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05extcon: fixing typosPeter Meerwald
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05extcon: fix typos in extcon-arizonaPeter Meerwald
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05extcon: fix typos in max77693 driverPeter Meerwald
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05extcon: arizona: Free MICDET IRQ on error during probeMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-27Merge 3.6-rc3 into driver-core-nextGreg Kroah-Hartman
This picks up the printk fixes in 3.6-rc3 that are needed in this branch. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16extcon: Ensure dynamically allocated sysfs attributes are initialisedMark Brown
The operation of lockdep requires that all dynamically allocated sysfs nodes are initialised using sysfs_attr_init() otherwise lots of warnings are generated. Ensure that all the dynamically allocated attributes that extcon generates have this done. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16Extcon: renamed files to comply with the standard naming.MyungJoo Ham
Replaced '_' with '-' in the extcon file names, which has been bogging since new drivers have been using the standard naming. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16Revert "Extcon: adc_jack: adc-jack driver to support 3.5 pi or simliar devices"Greg Kroah-Hartman
This reverts commit 980d7929816236476967218645c30acc022042eb as it breaks the build with the error: ERROR: "extcon_cable_name" [drivers/extcon/extcon-adc-jack.ko] undefined! Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: anish kumar <anish.singh@samsung.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16Extcon: adc_jack: adc-jack driver to support 3.5 pi or simliar devicesanish kumar
External connector devices that decides connection information based on ADC values may use adc-jack device driver. The user simply needs to provide a table of adc range and connection states. Then, extcon framework will automatically notify others. Changes in V1: added Lars-Peter Clausen suggested changes: Using macros to get rid of boiler plate code such as devm_kzalloc and module_platform_driver.Other changes suggested are related to coding guidelines. Changes in V2: Removed some unnecessary checks and changed the way we are un-regitering extcon and freeing the irq while removing. Changes in V3: Renamed the files to comply with extcon naming. Changes in V4: Added the cancel_work_sync during removing of driver. Changes in V5: Added the dependency of IIO in Kconfig. Changes in V6: Some nitpicks related to naming. Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: anish kumar <anish.singh@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16extcon: arizona: Implement button detection supportMark Brown
As well as identifying accessories the accessory detection hardware on Arizona class devices can also detect a number of buttons which we should report via the input API. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16extcon: extcon_gpio: Replace gpio_request_one by devm_gpio_request_oneAxel Lin
commit 01eaf24 "extcon: Convert extcon_gpio to devm_gpio_request_one" missed the replacement for devm_gpio_request_one. fix it. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-30Merge tag 'mfd-3.6-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFD bits from Samuel Ortiz: "We have support for a few new drivers: - Samsung s2mps11 - Wolfson Microelectronics wm5102 and wm5110 - Marvell 88PM800 and 88PM805 - TI twl6041 We also have our regular driver improvements: - Device tree and IRQ domain support for STE AB8500 - Regmap and devm_* API conversion for TI tps6586x - Device tree support for Samsung max77686 - devm_* API conversion for STE AB3100 Besides that, quite a lot of fixing and cleanup for mc13xxx, tps65910, tps65090, da9052 and twl-core." Fix up mostly trivial conflicts, with the exception of drivers/usb/host/ehci-omap.c in particular, which had some re-organization of the reset sequence (commit 1a49e2ac9651: "EHCI: centralize controller initialization") that clashed with commit 2761a6394516 ("mfd: USB: Fix the omap-usb EHCI ULPI PHY reset fix issues"). In particular, commit 2761a6394516 moved the usb_add_hcd() to the *middle* of the reset sequence, which clashes fairly badly with the reset sequence re-organization (although it could have been done inside the new omap_ehci_init() function). I left that part of commit 2761a6394516 just undone. * tag 'mfd-3.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (110 commits) mfd: Ensure AB8500 platform data is passed through db8500-prcmu to MFD Core mfd: Arizone core should select MFD_CORE mfd: Fix arizona-irq.c build by selecting REGMAP_IRQ mfd: Add debug trace on entering and leaving arizone runtime suspend mfd: Correct tps65090 cell names mfd: Remove gpio support from tps6586x core driver ARM: tegra: defconfig: Enable tps6586x gpio gpio: tps6586x: Add gpio support through platform driver mfd: Cache tps6586x register through regmap mfd: Use regmap for tps6586x register access. mfd: Use devm managed resources for tps6586x input: Add onkey support for 88PM80X PMIC mfd: Add support for twl6041 mfd: Fix twl6040 revision information mfd: Matches should be NULL when populate anatop child devices input: ab8500-ponkey: Create AB8500 domain IRQ mapping mfd: Add missing out of memory check for pcf50633 Documentation: Describe the AB8500 Device Tree bindings mfd: Add tps65910 32-kHz-crystal-input init mfd: Drop modifying mc13xxx driver's id_table in probe ...
2012-07-17extcon: MAX77693: Add extcon-max77693 driver to support Maxim MAX77693 MUIC ↵Chanwoo Choi
device This patch support Maxim MAX77693 MUIC device by using EXTCON Subsystem to handle various external connector. The extcon-max77693 use regmap method for i2c communication and support irq domain instead of previous method of irq base. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-17extcon: arizona: Stop microphone detection if we give up on itMark Brown
There should be no point in continuing to try to detect a microphone any more so stop doing so. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-17extcon: arizona: Update cable reporting calls and split headsetMark Brown
Use extcon_set_state_ for performance and split the headset into separate headphone and microphone reports as this is more idiomatic. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-08extcon: Add support irq domain for MAX8997 muicChanwoo Choi
This patch add support irq domain for Maxim MAX8997 muic instead of irq_base in platform data and max8997 driver private data are instead. It is tested on TRATS board. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-05Merge v3.5-rc5 into driver-core-nextGreg Kroah-Hartman
This picks up the big printk fixes, and resolves a merge issue with: drivers/extcon/extcon_gpio.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-26Extcon: Arizona: Add driver for Wolfson Arizona class devicesMark Brown
Most Wolfson Arizona class audio hub CODECs include a flexible ultra low power accessory detection subsystem. This driver exposes initial support for this subsystem via the Extcon framework, implementing support for ultra low power detection of headphone and headset with the ability to detect the polarity of a headset. The functionality of the devices is much richer and more flexible than the current driver, future patches will extend the features of the driver to more fully exploit this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18extcon: Convert extcon_gpio to devm_gpio_request_oneAxel Lin
Also remove unneeded devm_kfree calls. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18extcon: Set platform drvdata in gpio_extcon_probe() and fix irq leakAxel Lin
Add missing platform_set_drvdata() in gpio_extcon_probe(), otherwise calling platform_get_drvdata in gpio_extcon_remove() returns NULL. Also add missing free_irq call in gpio_extcon_remove(). Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18extcon: max8997: Add missing kfree for info->edev in max8997_muic_remove()Axel Lin
extcon_dev_unregister(info->edev) doest not free info->edev, we need to call kfree(info->edev) here. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18extcon: Set platform drvdata in gpio_extcon_probe() and fix irq leakAxel Lin
Add missing platform_set_drvdata() in gpio_extcon_probe(), otherwise calling platform_get_drvdata in gpio_extcon_remove() returns NULL. Also add missing free_irq call in gpio_extcon_remove(). Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18extcon: Fix wrong index in max8997_extcon_cable[]Axel Lin
Currently, the index of "Dock-desk" and "Dock-card" are the same. Thus the latter one overrides the first one. Then we have problem when calling extcon_find_cable_index() because edev->supported_cable[7] only matches "Dock-card". Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-15Extcon: Don't try to create duplicate link namesMark Brown
We can't create a link from the device to the compatibility switch class since we already create a link from the device to to the extcon class object and we try to use the same name for both links. This causes a loud complaint from sysfs on boot. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-15Extcon: Staticise extcon_classMark Brown
It's not referenced outside the core file. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-22Merge tag 'driver-core-3.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here's the driver core, and other driver subsystems, pull request for the 3.5-rc1 merge window. Outside of a few minor driver core changes, we ended up with the following different subsystem and core changes as well, due to interdependancies on the driver core: - hyperv driver updates - drivers/memory being created and some drivers moved into it - extcon driver subsystem created out of the old Android staging switch driver code - dynamic debug updates - printk rework, and /dev/kmsg changes All of this has been tested in the linux-next releases for a few weeks with no reported problems. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed that a patch to the deleted drivers/misc/max8997-muic.c driver needs to be applied to this one. * tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits) uio_pdrv_genirq: get irq through platform resource if not set otherwise memory: tegra{20,30}-mc: Remove empty *_remove() printk() - isolate KERN_CONT users from ordinary complete lines sysfs: get rid of some lockdep false positives Drivers: hv: util: Properly handle version negotiations. Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp() memory: tegra{20,30}-mc: Use dev_err_ratelimited() driver core: Add dev_*_ratelimited() family Driver Core: don't oops with unregistered driver in driver_find_device() printk() - restore prefix/timestamp printing for multi-newline strings printk: add stub for prepend_timestamp() ARM: tegra30: Make MC optional in Kconfig ARM: tegra20: Make MC optional in Kconfig ARM: tegra30: MC: Remove unnecessary BUG*() ARM: tegra20: MC: Remove unnecessary BUG*() printk: correctly align __log_buf ARM: tegra30: Add Tegra Memory Controller(MC) driver ARM: tegra20: Add Tegra Memory Controller(MC) driver printk() - restore timestamp printing at console output printk() - do not merge continuation lines of different threads ...
2012-05-09Extcon: add MAX8997 extcon driverChanwoo Choi
This patch add extcon-max8997 driver to support the muic feature of Maxim max8997 by using Extcon framework. The extcon-max8997 driver is implemented based on 'drivers/misc/ max8997-muic.c' and then use Extcon interface instead of callback function in struct max8997_muic_platform_data to notify cable state of notifee which want to know always newly cable state when external connector(e.g., USB, TA, JIG) is attached or detached. v1 - Use Extcon interface to notify cable state of notifee instead of callback function when external connector is attached or detached. - Bug fix of getting platform_data for irq_base value. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-04extcon: Add EXTCON_MECHANICAL cable type for physical presenceMark Brown
Some accessory detection mechanisms are able to detect that something is physically present in the socket separately to identifying what is present in the socket. This information can be useful to applications, for example allowing them to indicate that a potentially broken accessory is present, so provide a standard way to report it to userspace. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-02Extcon: fix section mismatch in extcon_gpio.cH Hartley Sweeten
Fix the section mismatch be renaming the struct platform_driver variable. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-30Extcon: Notify changed state for only one cable to notifeeChanwoo Choi
This patch inform the state of only one cable instead of previous data including the state of 32 cables to notifee which use extcon_register_interest() function to monitor whether the specific cable is attachd or detached. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25Extcon: check for allocation failureDan Carpenter
Return -ENOMEM if the kmalloc() fails. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-23Remove "switch" class in drivers/staging/android/switchMyungJoo Ham
Because extcon can also be a switch class for legacy userspace (Android) and is a superset of switch class in drivers/staging/android/switch, switch class may be removed. - Remove switch class - Remove switch class consideration in extcon class Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-20Extcon: support mutually exclusive relation between cables.MyungJoo Ham
There could be cables that t recannot be attaches simulatenously. Extcon device drivers may express such information via mutually_exclusive in struct extcon_dev. For example, for an extcon device with 16 cables (bits 0 to 15 are available), if mutually_exclusive = { 0x7, 0xC0, 0x81, 0 }, then, the following attachments are prohibitted. {0, 1} {0, 2} {1, 2} {6, 7} {0, 7} and every attachment set that are superset of one of the above. For the detail, please refer to linux/include/linux/extcon.h. The concept is suggested by NeilBrown <neilb@suse.de> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> -- Changes from V5: - Updated sysfs format Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-20Extcon: support multiple states at a device.MyungJoo Ham
One switch device (e.g., MUIC(MAX8997, MAX77686, ...), and some 30-pin devices) may have multiple cables attached. For example, one 30-pin port may inhabit a USB cable, an HDMI cable, and a mic. Thus, one switch device requires multiple state bits each representing a type of cable. For such purpose, we use the 32bit state variable; thus, up to 32 different type of cables may be defined for a switch device. The list of possible cables is defined by the array of cable names in the switch_dev struct given to the class. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> -- Changes from V7 - Bugfixed in _call_per_cable() (incorrect nb) (Chanwoo Choi) - Compiler error in header for !CONFIG_EXTCON (Chanwoo Choi) Changes from V5 - Sysfs style reformed: subdirectory per cable. - Updated standard cable names - Removed unnecessary printf - Bugfixes after testing Changes from V4 - Bugfixes after more testing at Exynos4412 boards with userspace processses. Changes from V3 - Bugfixes after more testing at Exynos4412 boards. Changes from V2 - State can be stored by user - Documentation updated Changes from RFC - Switch is renamed to extcon - Added kerneldoc comments - Added APIs to support "standard" cable names - Added helper APIs to support notifier block registration with cable name. - Regrouped function list in the header file. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-20Extcon: support notification based on the state changes.Donggeun Kim
State changes of extcon devices have been notified via kobjet_uevent. This patch adds notifier interfaces in order to allow device drivers to get notified easily. Along with notifier interface, extcon_get_extcon_dev() function is added so that device drivers may discover a extcon_dev easily. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> -- Changes from RFC - Renamed switch to extcon - Bugfix: extcon_dev_unregister() - Bugfix: "edev->dev" is "internal" data. - Added kerneldoc comments. - Reworded comments. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-20Extcon: support generic GPIO extcon driverMyungJoo Ham
The generic GPIO extcon driver (an external connector device based on GPIO control) and imported from Android kernel. switch: switch class and GPIO drivers. (splitted) Author: Mike Lockwood <lockwood@android.com> switch: gpio: Don't call request_irq with interrupts disabled Author: Arve Hjønnevåg <arve@android.com> switch_gpio: Add missing #include <linux/interrupt.h> Author: Mike Lockwood <lockwood@android.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> -- Changed from v7: - Style updates mentioned by Stephen Boyd and Mark Brown Changed from v5: - Splitted at v5 from the main extcon patch. - Added debounce time for irq handlers. - Use request_any_context_irq instead of request_irq - User needs to specify irq flags for GPIO interrupts (was fixed to IRQF_TRIGGER_LOW before) - Use module_platform_driver(). Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-20Extcon (external connector): import Android's switch class and modify.MyungJoo Ham
External connector class (extcon) is based on and an extension of Android kernel's switch class located at linux/drivers/switch/. This patch provides the before-extension switch class moved to the location where the extcon will be located (linux/drivers/extcon/) and updates to handle class properly. The before-extension class, switch class of Android kernel, commits imported are: switch: switch class and GPIO drivers. (splitted) Author: Mike Lockwood <lockwood@android.com> switch: Use device_create instead of device_create_drvdata. Author: Arve Hjønnevåg <arve@android.com> In this patch, upon the commits of Android kernel, we have added: - Relocated and renamed for extcon. - Comments, module name, and author information are updated - Code clean for successing patches - Bugfix: enabling write access without write functions - Class/device/sysfs create/remove handling - Added comments about uevents - Format changes for extcon_dev_register() to have a parent dev. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> -- Changes from v7 - Compiler error fixed when it is compiled as a module. - Removed out-of-date Kconfig entry Changes from v6 - Updated comment/strings - Revised "Android-compatible" mode. * Automatically activated if CONFIG_ANDROID && !CONFIG_ANDROID_SWITCH * Creates /sys/class/switch/*, which is a copy of /sys/class/extcon/* Changes from v5 - Split the patch - Style fixes - "Android-compatible" mode is enabled by Kconfig option. Changes from v2 - Updated name_show - Sysfs entries are handled by class itself. - Updated the method to add/remove devices for the class - Comments on uevent send - Able to become a module - Compatible with Android platform Changes from RFC - Renamed to extcon (external connector) from multistate switch - Added a seperated directory (drivers/extcon) - Added kerneldoc comments - Removed unused variables from extcon_gpio.c - Added ABI Documentation. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>