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* extcon: max77693: Allow MHL attach notifierMaciej Purski2017-08-251-3/+2
| | | | | | | Without this patch extcon couldn't notify attaching MHL cable. Signed-off-by: Maciej Purski <m.purski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Correct description to improve the readabilityChanwoo Choi2017-08-162-166/+158
| | | | | | | | | | | | | | | The extcon files explains the detailed operation for functions and what is meaning of extcon structure. There are different explanation even if the same argument. So, it modifies the description for both functions and structures in order to improve the readability and guide the role of functions more well. Also, this patch fixes the mismatching license info as a GPL v2 and removes the inactive author information. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Remove unused CABLE_NAME_MAX definitionChanwoo Choi2017-08-161-1/+0
| | | | | | This patch removes the unused CABLE_NAME_MAX definition. Signed-off-by: Chanwoo Choi <cwchoi00@gmail.com>
* extcon: cros-ec: Fix a potential NULL pointer dereferenceChristophe JAILLET2017-08-071-0/+2
| | | | | | | | | Return -ENOMEM in case of memory allocation failure. This avoids a NULL pointer dereference. Fixes: c69831666109 ("extcon: cros-ec: Add extcon-cros-ec driver to support display out") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Convert to using %pOF instead of full_nameRob Herring2017-07-191-2/+2
| | | | | | | | | Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* Merge remote-tracking branch 'origin/ib-extcon-mfd-4.14' into extcon-nextChanwoo Choi2017-07-173-0/+423
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| * extcon: cros-ec: Add extcon-cros-ec driver to support display outBenson Leung2017-07-173-0/+423
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the driver for the USB Type C cable detection mechanism built into the ChromeOS Embedded Controller on systems that have USB Type-C ports. At present, this allows for the presence of display out, but in future, it may also be used to notify host and device type cables and the presence of power. Signed-off-by: Benson Leung <bleung@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Chanwoo Choi <cw00.chio@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* | extcon: int3496: Constify acpi_device_idArvind Yadav2017-07-161-1/+1
|/ | | | | | | | | | | | | | | | | acpi_device_id are not supposed to change at runtime. All functions working with acpi_device_id provided by <acpi/acpi_bus.h> work with const acpi_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 1733 352 0 2085 825 drivers/extcon/extcon-intel-int3496.o File size After adding 'const': text data bss dec hex filename 1797 272 0 2069 815 drivers/extcon/extcon-intel-int3496.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Switch to devm_acpi_dev_add_driver_gpios()Andy Shevchenko2017-06-121-4/+1
| | | | | | | | Switch to use managed variant of acpi_dev_add_driver_gpios() to simplify error path and fix potentially wrong assingment if ->probe() fails. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: qcom-spmi-misc: add dependency on ARCH_QCOMPeter Robinson2017-05-231-0/+1
| | | | | | | | Depend on the architecture the device actuall is in, also add dep on the compile test to ensure continued coverage. Signed-off-by: Peter Robinson <pbrobinson@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Use devm_kcalloc() in arizona_extcon_get_micd_configs()Markus Elfring2017-05-231-3/+1
| | | | | | | | | | | | | | * A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "devm_kcalloc". * Replace the specification of a data structure by a pointer dereference to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Fix a typo in three comment linesMarkus Elfring2017-05-231-3/+3
| | | | | | | Adjust three words in this description for a function. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Use devm_kcalloc() in extcon_dev_register()Markus Elfring2017-05-231-3/+2
| | | | | | | | | A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "devm_kcalloc". Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Use BIT() macro for the left-shift operationChanwoo Choi2017-04-061-1/+1
| | | | | | This patch just uses the BIT() macro to make the code simple. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: intel-cht-wc: Ignore failure to detect charger-type on host mode exitHans de Goede2017-04-061-4/+11
| | | | | | | | | | | | | When we leave host-mode because the id-pin is no longer connected to ground, the 5v boost converter is normally still on, so we will see Vbus, but it is not from a charger (normally) so the charger-type detection will fail. This commit silences the cht_wc_extcon_get_charger() false-positive errors when we're leaving host mode. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: intel-cht-wc: Disable external 5v boost converter on probeHans de Goede2017-04-061-0/+35
| | | | | | | | | | | | | | | | | | | Disable the 5v boost converter on probe in case it was left on by the BIOS, this fixes 2 problems: 1) This gets seen by the external battery charger as a valid Vbus supply and it then tries to feed Vsys from this creating a feedback loop which causes aprox. 300 mA extra battery drain (and unless we drive the external-charger-disable pin high it also tries to charge the battery causing even more feedback). 2) This gets seen by the pwrsrc block as a SDP USB Vbus supply Since the external battery charger has its own 5v boost converter which does not have these issues, we simply turn the separate external 5v boost converter off and leave it off entirely. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Remove porting compatibility of swich classChanwoo Choi2017-04-061-20/+0
| | | | | | | | This patch removes the porting compatibility for switch class because there is no any usage and requirement of swich class over a couple of years. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: intel-cht-wc: Add Intel Cherry Trail Whiskey Cove PMIC extcon driverHans de Goede2017-04-063-0/+361
| | | | | | | | Add a driver for charger detection / control on the Intel Cherrytrail Whiskey Cove PMIC. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: palmas: Don't miss GPIO events during suspend/resumeRoger Quadros2017-04-061-0/+6
| | | | | | | | The USB cable state can change during suspend/resume so be sure to check and update the extcon state. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: usb-gpio: Don't miss event during suspend/resumeRoger Quadros2017-04-061-3/+2
| | | | | | | | | | | We must check for ID/VBUS changes during resume irrespective of whether our device wakeup is enabled or not. Without this we seem to be missing ID/VBUS events after system suspend/resume. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: usb-gpio: Do not enable USB as wakeup source by defaultPeter Chen2017-04-061-1/+1
| | | | | | | | Whether the USB port as a wakeup source should be determined by user, but not enabled by default. Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Wait for any running HPDETs to complete on jack removalCharles Keepax2017-04-061-0/+46
| | | | | | | | | | As the HPDET can't be aborted mid way through we should not allow any new insertion to be processed until the previous HPDET has finished. It is very unlikely but with low enough debounce settings you could start a new HPDET before the old one has completed, which results in an erroneous reading. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* Merge branch 'ib-extcon-4.12' into HEADChanwoo Choi2017-04-063-0/+130
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| * extcon: Add new extcon_register_notifier_all() to monitor all external ↵Chanwoo Choi2017-04-043-0/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | connectors The extcon core already provides the extcon_register_notifier() function in order to register the notifier block which is used to monitor the state change for the specific external connector such as EXTCON_USB, EXTCON_USB_HOST and so on. The extcon consumer uses the this function. The extcon consumer might need to monitor the all supported external connectors from the extcon device. In this case, The extcon consumer should have each notifier_block structure for each external connector. This patch adds the new extcon_register_notifier_all() function that extcon consumer is able to monitor the state change of all supported external connectors by using only one notifier_block structure. - List of new added functions: int extcon_register_notifier_all(struct extcon_dev *edev, struct notifier_block *nb); int extcon_unregister_notifier_all(struct extcon_dev *edev, struct notifier_block *nb); int devm_extcon_register_notifier_all(struct device *dev, struct extcon_dev *edev, struct notifier_block *nb); void devm_extcon_unregister_notifier_all(struct device *dev, struct extcon_dev *edev, struct notifier_block *nb); Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Hans de Goede <hdegoede@redhat.com>
* | Revert "extcon: usb-gpio: add support for ACPI gpio interface"Andy Shevchenko2017-03-271-2/+1
|/ | | | | | | | | | | | The commit 942c7924a51e introduced a check for ACPI handle for the device that never appears on any ACPI-enabled platform so far. It seems a confusion with extcon-intel-int3496 which does support ACPI-enabled platforms. Revert commit 942c7924a51e to avoid any confusion in the future. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Set the id pin to direction-input if necessaryHans de Goede2017-03-221-0/+3
| | | | | | | | | | | | | | | | | | | | With the new more strict ACPI gpio code the dsdt's IoRestriction flags are honored on gpiod_get, but in some dsdt's it is wrong, so explicitly call gpiod_direction_input on the id gpio if necessary. This fixes the following errors when the int3496 code is used together with the new more strict ACPI gpio code: [ 2382.484415] gpio gpiochip1: (INT33FF:01): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ [ 2382.484425] gpio gpiochip1: (INT33FF:01): unable to lock HW IRQ 3 for IRQ [ 2382.484429] genirq: Failed to request resources for INT3496:00 (irq 174) on irqchip chv-gpio [ 2382.484518] intel-int3496 INT3496:00: can't request IRQ for USB ID GPIO: -22 [ 2382.500359] intel-int3496: probe of INT3496:00 failed with error -22 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Use gpiod_get instead of gpiod_get_indexHans de Goede2017-03-221-9/+3
| | | | | | | | | Now that we've an acpi mapping table we should be using gpiod_get instead of gpiod_get_index. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Add dependency on X86 as it's Intel specificPeter Robinson2017-03-221-1/+1
| | | | | | | | Add dependency on X86 so it doesn't show up on other arches and add a option for compile test so it still gets build coverage. Signed-off-by: Peter Robinson <pbrobinson@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Add GPIO ACPI mapping tableAndy Shevchenko2017-03-221-0/+20
| | | | | | | | | | | | In order to make GPIO ACPI library stricter prepare users of gpiod_get_index() to correctly behave when there no mapping is provided by firmware. Here we add explicit mapping between _CRS GpioIo() resources and their names used in the driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Rename GPIO pins in accordance with bindingAndy Shevchenko2017-03-221-2/+2
| | | | | | | | Update GPIO pin names in extcon-intel-int3496.c driver to follow the existing extcon binding. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Propagate error code of gpiod_to_irq()Andy Shevchenko2017-03-131-2/+2
| | | | | | | | gpiod_to_irq() doesn't return 0. Thus, we just adjust condition and replace -EINVAL by actual error code it returns. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* scripts/spelling.txt: add "swithc" pattern and fix typo instancesMasahiro Yamada2017-02-281-1/+1
| | | | | | | | | | | | | Fix typos and add the following to the scripts/spelling.txt: swithc||switch swithced||switched swithcing||switching Link: http://lkml.kernel.org/r/1481573103-11329-3-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>
* extcon: palmas: Use dev_dbg macro for the debug messagesRoger Quadros2017-01-251-8/+8
| | | | | | | | User is not interested in USB cable events appearing on the console. Use dev_dbg() instead of dev_info() for these events. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Modify the name of EXTCON_USB_HOST connectorChanwoo Choi2017-01-091-1/+1
| | | | | | | | This patch renames the EXTCON_USB_HOST by using '-' char because the name of all external connector use the '-' char instead of '_' char. - "USB_HOST" -> "USB-HOST" Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Add new EXTCON_CHG_USB_PD type for USB Power DeliveryChanwoo Choi2017-01-091-0/+5
| | | | | | | | | | | This patch adds the new EXTCON_CHG_USB_PD for USB PD (Power Delivery)[1]. The USB Power Delivery specification specifies that USB cable provides the increased power more than 7.5W to device with larger power demand. The EXTCON_CHG_USB_PD has the EXTCON_TYPE_CHG and EXTCON_TYPE_USB type. [1] https://en.wikipedia.org/wiki/USB#PD Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: usb-gpio: Add pinctrl operation during system PMPeter Chen2017-01-091-0/+7
| | | | | | | | | | | At some systems, the pinctrl setting will be lost or needs to set as "sleep" state to save power consumption. So, we need to configure pinctrl as "sleep" state when system enters suspend, and as "default" state after system resumes. In this way, the pinctrl value can be recovered as "default" state after resuming. Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Move defintion of struct extcon_dev to driver/extcon directoryChanwoo Choi2017-01-093-2/+65
| | | | | | | | | | This patch moves the 'struct extcon_dev' of extcon subsystem to driver/extcon/extcon.h header file because the struct extcon_dev have to be handled by extcon API to guarantee the consistency of strcut extcon_dev. If external drivers are able to touch the struct extcon_dev directly, it might cause the critical and unknown problem. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: adc-jack: Use the internal data instead of using struct extcon_devChanwoo Choi2017-01-091-1/+1
| | | | | | | | This patch uses the internal dev instance instead of using the field of struct extcon_dev because the core structure (extcon_dev) of extcon have to be touched by only extcon core driver. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Add Intel INT3496 ACPI device extcon driverDavid Cohen2017-01-093-0/+190
| | | | | | | | | | | Add an extcon driver for USB OTG ports controlled by an Intel INT3496 ACPI device (e.g. Baytrail, Cherrytrail devices). Signed-off-by: David Cohen <david.a.cohen@intel.com> [hdgoede@redhat.com: Port to current kernel, cleanup, submit upstream] [hdgoede@redhat.com: Add Documentation/extcon/intel-int3496.txt] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was setBaolin Wang2017-01-091-0/+8
| | | | | | | | According to the documentation, we should set the EXTCON_USB when one SDP charger connector was reported. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Remove potential problem when calling extcon_register_notifier()Chanwoo Choi2017-01-091-26/+7
| | | | | | | | | | This patch removes the potential problem of extcon_register_notifier() when edev parameter is NULL. When edev is NULL, this function returns the first extcon device which includes the sepecific external connector of second paramter. But, it don't guarantee the same operation in all cases. To remove this confusion and potential problem, this patch fixes it. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Fix the module not auto-loadingHans de Goede2017-01-091-0/+7
| | | | | | | | Add a MODULE_DEVICE_TABLE to fix the module not auto-loading. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Remove unnecessary irq?_en register writesHans de Goede2017-01-091-16/+3
| | | | | | | | | | Setting the irq_enable bits is taken care of by the irq chip when we request the irqs and the driver should not be meddling with the irq?_en registers itself. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Use vbus-valid instead of -present to determine cable presenceHans de Goede2017-01-091-1/+1
| | | | | | | | | | | | | | | | | | | | The vbus-present bit in the power status register also gets set to 1 when a usb-host cable (id-pin shorted to ground) is plugged in and a 5v boost converter is supplying 5v to the otg usb bus. This causes a "disconnect or unknown or ID event" warning in dmesg as well as the extcon device to report the last detected charger cable type as being connected even though none is connected. This commit switches to checking the vbus-valid bit instead, which is only 1 when both vbus is present and the vbus-path is enabled in the vbus-path control register (the vbus-path gets disabled when a usb-host cable is detected, to avoid the pmic drawing power from the 5v boost converter). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Fix possibly reporting 2 cables in state trueHans de Goede2017-01-091-2/+8
| | | | | | | | | | | | | | When the charger type changes from e.g. SDP to CDP, without Vbus being seen as low in between axp288_handle_chrg_det_event would set the state for the new cable type to true, without clearing the state of the previous cable type to false. This commit fixes this and also gets rid of the function local static cable variable, properly storing all drv state in the axp288_extcon_info struct. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Simplify axp288_handle_chrg_det_eventHans de Goede2017-01-091-25/+12
| | | | | | | | | | | | | | axp288_handle_chrg_det_event only gets called on change interrupts (so not that often), extcon_set_state_sync() checks itself if there are any actual changes before notifying listeners, and gpiod_set_value is not really expensive either. So we can simply always do both on each interrupt removing a bunch of somewhat magic looking code from axp288_handle_chrg_det_event. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Remove usb_phy notification codeHans de Goede2017-01-091-12/+0
| | | | | | | | | | | | | | | | | The usb_phy based intel-usb-phy code never got merged into the mainline kernel, so the devm_usb_get_phy() call will always fail, blocking the driver from loading. Since new drivers should use the generic-phy framework, not the old-style usb_phy stuff, keeping this around is not useful. Therefor this patch removes the usb_phy notification bits, which together with the patch to remove the platform_data dependency, makes this driver actually successfully probe on systems with an axp288 pmic. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: axp288: Remove dependency on non-existing platform_dataHans de Goede2017-01-091-15/+10
| | | | | | | | | | | | | | | | | | | | | | | When the extcon_axp288 driver was originally merged, it was merged with a dependency on some other driver providing platform data for it. However such another driver was never merged, so the extcon_axp288 as merged upstream has never worked, its probe method simply always returns -ENODEV. This commit drops the dependency on the pdata always being there, instead it treats not having pdata as the pdata having a NULL gpio_mux_control, something which the code was already prepared to handle. Note that the code for controlling the mux_control gpio is left in place, as this may be necessary to allow the axp288 pmic to properly detect the charger type (instead of assuming 500mA max charge current) on some tablets. This will make it easier for future patches to add support for this gpio by getting the gpio info from somewhere. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: palmas: Check the parent instance to prevent the NULLRoger Quadros2017-01-091-0/+5
| | | | | | | | | | | extcon-palmas must be child of palmas and expects parent's drvdata to be valid. Check for non NULL parent drvdata and fail if it is NULL. Not doing so will result in a NULL pointer dereference later in the probe() parent drvdata is NULL (e.g. misplaced extcon-palmas node in device tree). Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Restructure multi-line comments to follow codingstyleSrikant Ritolia2017-01-095-18/+36
| | | | | | | | Aligning all block comments in extcon subsystem as per linux coding style. Found using checkpatch.pl script. Signed-off-by: Srikant Ritolia <s.ritolia@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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