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path: root/drivers/extcon/extcon-max14577.c (follow)
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* extcon: extcon-max14577: Fix potential work-queue cancellation raceMatti Vaittinen2021-06-171-11/+5
| | | | | | | | | | | | | | | | | The extcon IRQ schedules a work item. IRQ is requested using devm while WQ is cancelld at remove(). This mixing of devm and manual unwinding has potential case where the WQ has been emptied (.remove() was ran) but devm unwinding of IRQ was not yet done. It is possible the IRQ is triggered at this point scheduling new work item to the already flushed queue. Use new devm_work_autocancel() to remove the remove() and to kill the bug. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Link: https://lore.kernel.org/r/ee8545f59ae3a93f0a70f640ecbd7e31cfadbcb9.1623146580.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* extcon: max14577: Return error code of extcon_dev_allocate()Krzysztof Kozlowski2020-09-241-1/+1
| | | | | | | | devm_extcon_dev_allocate() can fail of multiple reasons. The call returns proper error code on failure so pass it instead of fixed ENOMEM. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: max14577: Add proper dt-compatible stringsMarek Szyprowski2020-05-291-0/+10
| | | | | | | | | Add device tree compatible strings and create proper modalias structures to let this driver load automatically if compiled as module, because max14577 MFD driver creates MFD cells with such compatible strings. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: max14577: Avoid forcing UART path on drive probeMarek Szyprowski2018-11-121-2/+13
| | | | | | | | | | | | | | | | | | Driver unconditionally forces UART path during probe, probably to ensure that one can get kernel serial log as soon as possible. This approach causes some issues, especially when board is booted with non-UART cable connected to micro-USB port. For example, when USB cable is connected, UART TX/RX lines are unconditionally short-circuited to USB D+/D- lines. This is in turn recognized by a series of serial BREAK signals and some random characters when USB host tries to perform enumeration procedure. To solve the above issue and keep UART console operational as early as possible, set UART path only when USB ID reports UART capable cable. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: maxim: Add SPDX license identifiersKrzysztof Kozlowski2018-08-281-17/+7
| | | | | | | Replace GPL v2.0+ license statements with SPDX license identifiers. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: max14577: Delete an unnecessary variable initialisation in ↵Markus Elfring2017-10-231-1/+1
| | | | | | | | | | | max14577_muic_set_path() The variable "ret" is immediately reassigned by a following statement. Thus omit the explicit initialisation at the beginning. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Split out extcon header file for consumer and provider deviceChanwoo Choi2017-10-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The extcon has two type of extcon devices as following. - 'extcon provider deivce' adds new extcon device and detect the state/properties of external connector. Also, it notifies the state/properties to the extcon consumer device. - 'extcon consumer device' gets the change state/properties from extcon provider device. Prior to that, include/linux/extcon.h contains all exported API for both provider and consumer device driver. To clarify the meaning of header file and to remove the wrong use-case on consumer device, this patch separates into extcon.h and extcon-provider.h. [Description for include/linux/{extcon.h|extcon-provider.h}] - extcon.h includes the extcon API and data structure for extcon consumer device driver. This header file contains the following APIs: : Register/unregister the notifier to catch the change of extcon device : Get the extcon device instance : Get the extcon device name : Get the state of each external connector : Get the property value of each external connector : Get the property capability of each external connector - extcon-provider.h includes the extcon API and data structure for extcon provider device driver. This header file contains the following APIs: : Include 'include/linux/extcon.h' : Allocate the memory for extcon device instance : Register/unregister extcon device : Set the state of each external connector : Set the property value of each external connector : Set the property capability of each external connector Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
* extcon: Restructure multi-line comments to follow codingstyleSrikant Ritolia2017-01-091-2/+4
| | | | | | | | 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>
* extcon: Use the extcon_set_state_sync() instead of deprecated functionsChanwoo Choi2016-09-131-7/+7
| | | | | | | | | | | | | | | | | This patch alters the renamed extcon API to set the state of the external connectors instead of deprecated extcon_set_cable_state_(). Because the patch[1] modifies the function name to maintain the function naming pattern. - extcon_set_cable_state_() -> extcon_set_state_sync() - extcon_get_cable_state_() -> extcon_get_state() [1] https://lkml.org/lkml/2016/8/4/729 - extcon: Rename the extcon_set/get_state() to maintain the function naming pattern Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Roger Quadros <rogerq@ti.com>
* extcon: max14577: Change Krzysztof Kozlowski's email to kernel.orgKrzysztof Kozlowski2016-09-131-2/+2
| | | | | | | | | Change my email address to kernel.org instead of Samsung one for the purpose of any future contact. The copyrights remain untouched and are attributed to Samsung. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Add the EXTCON_CHG_USB_SDP to support SDP charing portChanwoo Choi2016-01-251-0/+3
| | | | | | | | | | | This patch adds the new EXTCON_CHG_USB_SDP connector to support SDP (Standard Downstream Port) USB charging port. The commit 11eecf910bd8 ("extcon: Modify the id and name of external connector") add the new EXTCON_CHG_USB_SDP connector which support the both data transfer and usb charging at the same time. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
* extcon: max14577: fix handling return value of regmap_irq_get_virqAndrzej Hajda2015-12-151-1/+1
| | | | | | | | | | | | | | The function can return negative values, so its result should be assigned to signed variable. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Modify the id and name of external connectorChanwoo Choi2015-10-161-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch modifies the id and name of external connector with the additional prefix to clarify both attribute and meaning of external connector as following: - EXTCON_CHG_* mean the charger connector. - EXTCON_JACK_* mean the jack connector. - EXTCON_DISP_* mean the display port connector. Following table show the new name of external connector with old name: -------------------------------------------------- Old extcon name | New extcon name | -------------------------------------------------- EXTCON_TA | EXTCON_CHG_USB_DCP | EXTCON_CHARGE_DOWNSTREAM| EXTCON_CHG_USB_CDP | EXTCON_FAST_CHARGER | EXTCON_CHG_USB_FAST | EXTCON_SLOW_CHARGER | EXTCON_CHG_USB_SLOW | -------------------------------------------------- EXTCON_MICROPHONE | EXTCON_JACK_MICROPHONE | EXTCON_HEADPHONE | EXTCON_JACK_HEADPHONE | EXTCON_LINE_IN | EXTCON_JACK_LINE_IN | EXTCON_LINE_OUT | EXTCON_JACK_LINE_OUT | EXTCON_VIDEO_IN | EXTCON_JACK_VIDEO_IN | EXTCON_VIDEO_OUT | EXTCON_JACK_VIDEO_OUT | EXTCON_SPDIF_IN | EXTCON_JACK_SPDIF_IN | EXTCON_SPDIF_OUT | EXTCON_JACK_SPDIF_OUT | -------------------------------------------------- EXTCON_HMDI | EXTCON_DISP_HDMI | EXTCON_MHL | EXTCON_DISP_MHL | EXTCON_DVI | EXTCON_DISP_DVI | EXTCON_VGA | EXTCON_DISP_VGA | -------------------------------------------------- And, when altering the name of USB charger connector, EXTCON refers to the "Battery Charging v1.2 Spec and Adopters Agreement"[1] to use the standard name of USB charging port as following. Following name of USB charging port are already used in power_supply subsystem. We chan check it on patch[2]. - EXTCON_CHG_USB_SDP /* Standard Downstream Port */ - EXTCON_CHG_USB_DCP /* Dedicated Charging Port */ - EXTCON_CHG_USB_CDP /* Charging Downstream Port */ - EXTCON_CHG_USB_ACA /* Accessory Charger Adapter */ [1] www.usb.org/developers/docs/devclass_docs/BCv1.2_070312.zip [2] commit 85efc8a18ced ("power_supply: Add types for USB chargers") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> [ckeepax: For the Arizona changes] Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Reviewed-by: Roger Quadros <rogerq@ti.com>
* extcon: Redefine the unique id of supported external connectors without ↵Chanwoo Choi2015-06-131-1/+1
| | | | | | | | | | | | | | | 'enum extcon' type This patch just redefine the unique id of supported external connectors without 'enum extcon' type. Because unique id would be used on devictree file(*.dts) to indicate the specific external connectors like key number of input framework. So, I have the plan to move this definitions to following header file which includes the unique id of supported external connectors. - include/dt-bindings/extcon/extcon.h Fixes: 2a9de9c0f08d ("extcon: Use the unique id for external connector instead of string") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* extcon: Use the unique id for external connector instead of stringChanwoo Choi2015-05-221-28/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch uses the unique id to identify the type of external connector instead of string name. The string name have the many potential issues. So, this patch defines the 'extcon' enumeration which includes all supported external connector on EXTCON subsystem. If new external connector is necessary, the unique id of new connector have to be added in 'extcon' enumeration. There are current supported external connector in 'enum extcon' as following: enum extcon { EXTCON_NONE = 0x0, /* USB external connector */ EXTCON_USB = 0x1, EXTCON_USB_HOST = 0x2, /* Charger external connector */ EXTCON_TA = 0x10, EXTCON_FAST_CHARGER = 0x11, EXTCON_SLOW_CHARGER = 0x12, EXTCON_CHARGE_DOWNSTREAM = 0x13, /* Audio and video external connector */ EXTCON_LINE_IN = 0x20, EXTCON_LINE_OUT = 0x21, EXTCON_MICROPHONE = 0x22, EXTCON_HEADPHONE = 0x23, EXTCON_HDMI = 0x30, EXTCON_MHL = 0x31, EXTCON_DVI = 0x32, EXTCON_VGA = 0x33, EXTCON_SPDIF_IN = 0x34, EXTCON_SPDIF_OUT = 0x35, EXTCON_VIDEO_IN = 0x36, EXTCON_VIDEO_OUT = 0x37, /* Miscellaneous external connector */ EXTCON_DOCK = 0x50, EXTCON_JIG = 0x51, EXTCON_MECHANICAL = 0x52, EXTCON_END, }; For example in extcon-arizona.c: To use unique id removes the potential issue about handling the inconsistent name of external connector with string. - Previously, use the string to register the type of arizona jack connector static const char *arizona_cable[] = { "Mechanical", "Microphone", "Headphone", "Line-out", }; - Newly, use the unique id to register the type of arizona jack connector static const enum extcon arizona_cable[] = { EXTCON_MECHANICAL, EXTCON_MICROPHONE, EXTCON_HEADPHONE, EXTCON_LINE_OUT, EXTCON_NONE, }; And this patch modify the prototype of extcon_{get|set}_cable_state_() which uses the 'enum extcon id' instead of 'cable_index'. Because although one more extcon drivers support USB cable, each extcon driver might has the differnt 'cable_index' for USB cable. All extcon drivers can use the unique id number for same external connector with modified extcon_{get|set}_cable_state_(). - Previously, use 'cable_index' on these functions: extcon_get_cable_state_(struct extcon_dev*, int cable_index) extcon_set_cable_state_(struct extcon_dev*, int cable_index, bool state) -Newly, use 'enum extcon id' on these functions: extcon_get_cable_state_(struct extcon_dev*, enum extcon id) extcon_set_cable_state_(struct extcon_dev*, enum extcon id, bool state) Cc: Arnd Bergmann <arnd@arndb.de> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Roger Quadros <rogerq@ti.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> [arnd: Report the build break about drivers/usb/phy/phy-tahvo.c after using the unique id for external connector insteadf of string] Reported-by: Arnd Bergmann <arnd@arndb.de> [dan.carpenter: Report the build warning of extcon_{set|get}_cable_state_()] Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
* extcon: Remove the optional name of extcon deviceChanwoo Choi2015-05-191-2/+0
| | | | | | | | | | | | | | | This patch removes the optional name of extcon device. Instead, extcon_dev_register() set the device name as 'extcon[number]' naming pattern. - /sys/class/extcon/[hardcoded device name] -> /sys/class/extcon/extcon[number] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Graeme Gregory <gg@slimlogic.co.uk> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Jaewon Kim <jaewon02.kim@samsung.com>
* extcon: Unify the jig cable names on rt8973 and max14577/77693/77843Chanwoo Choi2015-05-191-16/+3
| | | | | | | | | | | | | This patch change the name of various jig cables as 'JIG' because the name of various jig cables are strange and ambiguous on user-space aspect. They include the different information of either USB and UART state. It is never important for user-space process. This patch unifies the name of jig cables as following: - JIG-USB-ON -->|--> JIG - JIG-USB-OFF -->| - JIG-UART-ON -->| - JIG-UART-OFF -->| Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Fix the checkpatch warningChanwoo Choi2015-03-071-4/+1
| | | | | | This patch fixes the checkpatch warning about coding style. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* Merge tag 'char-misc-3.19-rc1' of ↵Linus Torvalds2014-12-151-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the big char/misc driver update for 3.19-rc1 Lots of little things all over the place in different drivers, and a new subsystem, "coresight" has been added. Full details are in the shortlog" * tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (73 commits) parport: parport_pc, do not remove parent devices early spmi: Remove shutdown/suspend/resume kernel-doc carma-fpga-program: drop videobuf dependency carma-fpga: drop videobuf dependency carma-fpga-program.c: fix compile errors i8k: Fix temperature bug handling in i8k_get_temp() cxl: Name interrupts in /proc/interrupt CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warning coresight-replicator: remove .owner field for driver coresight: fixed comments in coresight.h coresight: fix typo in comment in coresight-priv.h coresight: bindings for coresight drivers coresight: Adding ABI documentation w1: support auto-load of w1_bq27000 module. w1: avoid potential u16 overflow cn: verify msg->len before making callback mei: export fw status registers through sysfs mei: read and print all six FW status registers mei: txe: add cherrytrail device id mei: kill cached host and me csr values ...
| * extcon: max14577: Fix obvious typo in company name in copyrightKrzysztof Kozlowski2014-11-241-1/+1
| | | | | | | | | | | | | | Fix a typo in name of company in copyright comment. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* | extcon: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
|/ | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* extcon: Remove unnecessary OOM messagesJingoo Han2014-07-231-3/+2
| | | | | | | | | | | | | The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. The following checkpatch warning is also removed. WARNING: Possible unnecessary 'out of memory' message Signed-off-by: Jingoo Han <jg1.han@samsung.com> [Acked by Charles Keepax for arizona part] Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: max14577: Use devm_extcon_dev_allocate for extcon_devChanwoo Choi2014-04-291-3/+4
| | | | | | | | | | This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device. Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Felipe Balbi <balbi@ti.com>
* extcon: max14577: Use devm_extcon_dev_register()Sangjung Woo2014-04-241-7/+2
| | | | | | | | | | | Use the resource-managed extcon device register function (i.e. devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device is attached with this function, that extcon device is automatically unregistered on driver detach. That reduces tiresome managing code. Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: max14577: Properly handle regmap_irq_get_virq errorKrzysztof Kozlowski2014-04-241-1/+1
| | | | | | | | | The regmap_irq_get_virq may return 0 or -EINVAL on error. Fail the probe in both situations. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: <stable@vger.kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: max14577: Fix probe failure on successful work queueKrzysztof Kozlowski2014-04-241-6/+1
| | | | | | | | | | | | | | In probe the driver queued delayed work for cable detection and returned the result of queue_delayed_work() call. However the return value of queue_delayed_work() does not indicate an error and in normal condition it returns true which means successful work queue. This effectively resulted in probe failure: [ 2.088204] max14577-muic: probe of max77836-muic failed with error 1 Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: <stable@vger.kernel.org> Fixes: 962e56bfcf0b ("extcon: max14577: Add extcon-max14577 driver...") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: max14577: Add support for MAX77836Krzysztof Kozlowski2014-04-231-19/+90
| | | | | | | | | | | | Add support for MAX77836 chipset to the max14577 extcon driver. The MAX77836 MUIC has additional interrupts (VIDRM, ADC1K) so IRQ handling is split up into two functions: max14577_parse_irq() and max77836_parse_irq(). Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* extcon: max14577: Choose muic_irqs according to device typeKrzysztof Kozlowski2014-04-231-28/+37
| | | | | | | | | | | | | | This patch continues the preparation for adding support for max77836 device to existing max14577 driver. During probe choose muic_irqs according to device type. Currently there are only "max14577_muic_irqs" but later patch will add max77836 interrupts. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* extcon: max14577: Add max14577 prefix to muic_irqsKrzysztof Kozlowski2014-04-231-6/+6
| | | | | | | | | | Add max14577 prefix to muic_irqs array. This prepares for max77836 support in this extcon driver. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* extcon: max14577: Change extcon name instead of static name according to ↵Chanwoo Choi2014-04-231-3/+3
| | | | | | | | | | | | | | | | device type This patch use device name to make sysfs path according to device type: max14577-muic - /sys/class/extcon/max14577-muic/ max77836-muic - /sys/class/extcon/max77836-muic/ Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* extcon: max14577: Add extcon-max14577 driver to support MUIC deviceChanwoo Choi2014-01-071-0/+752
This patch supports Maxim MAX14577 MUIC(Micro USB Interface Controller) device by using EXTCON subsystem to handle various external connectors. The max14577 device uses regmap method for i2c communication and supports irq domain. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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