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path: root/drivers/extcon/extcon-max77693.c
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2018-11-12extcon: max77693: Avoid forcing UART path on drive probeMarek Szyprowski
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>
2018-08-28extcon: maxim: Add SPDX license identifiersKrzysztof Kozlowski
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>
2017-11-27extcon: max77693: Delete unneeded initialization in max77693_muic_set_path()Markus Elfring
The variable "ret" will be set to an appropriate value a bit later. Thus this patch omits the explicit initialization at the beginning. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2017-10-23extcon: Split out extcon header file for consumer and provider deviceChanwoo Choi
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>
2017-08-25extcon: max77693: Allow MHL attach notifierMaciej Purski
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>
2017-01-09extcon: Restructure multi-line comments to follow codingstyleSrikant Ritolia
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>
2016-09-13extcon: Use the extcon_set_state_sync() instead of deprecated functionsChanwoo Choi
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>
2016-01-25extcon: Add the EXTCON_CHG_USB_SDP to support SDP charing portChanwoo Choi
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>
2015-12-15extcon: max77693: fix handling return value of regmap_irq_get_virqAndrzej Hajda
The function can return negative values, so its result should be assigned to signed variable. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-10-16extcon: Modify the id and name of external connectorChanwoo Choi
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>
2015-07-16mfd/extcon: max77693: Rename defines to allow inclusion with max77843Krzysztof Kozlowski
Add MAX77693 prefix to some of the defines used in max77693 extcon driver so the max77693-private.h can be included simultaneously with max77843-private.h. Additionally use BIT() macro in header. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-16drivers: max77693: Move state container to common headerKrzysztof Kozlowski
This prepares for merging some of the drivers between max77693 and max77843 so the child MFD driver can be attached to any parent MFD main driver. Move the state container to common header file. Additionally add consistent 'i2c' prefixes to its members (of 'struct i2c_client' type). Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-16mfd/extcon: max77693: Remove unused extern declarations and max77693_dev membersKrzysztof Kozlowski
Clean up the max77693 private header file by removing: 1. Left-overs from previous way of interrupt handling (driver uses regmap_irq_chip). 2. Unused members of struct 'max77693_dev' related to interrupts in extcon driver. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-12extcon: Redefine the unique id of supported external connectors without ↵Chanwoo Choi
'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>
2015-05-22extcon: Use the unique id for external connector instead of stringChanwoo Choi
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>
2015-05-19extcon: Remove the optional name of extcon deviceChanwoo Choi
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>
2015-05-19extcon: Alter MHL-TA cable name to TA cable nameChanwoo Choi
This patch alters the MHL-TA cable name to TA cable name because MHL-TA is not standard name. The MHL-TA is MHL cable with charger cable (TA or USB). So, this patch use the TA cable instead of MHL-TA to inform the charger cable state. - MHL-TA -> TA Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-05-19extcon: Unify the dock device names on max8997/77693Chanwoo Choi
This patch change the name of various dock devices as 'DOCK' because the name of various dock devices have not the standard naming rules. The name of dock devices include the differenct word but it is ambiguous and never important information on user-space aspect. This patch unifies the name of dock devices as following: - Dock-Smart -->|--> DOCK - Dock-Desk -->| - Dock-Audio -->| - Dock-Card -->| Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-05-19extcon: Unify the jig cable names on rt8973 and max14577/77693/77843Chanwoo Choi
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>
2015-03-07extcon: Fix the checkpatch warningChanwoo Choi
This patch fixes the checkpatch warning about coding style. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-02-24extcon: max77693: Use HOST term to express USB-HOST cable instead of OTG termJaewon Kim
This patch unifies the term called 'USB_OTG' and 'USB_HOST' into USB_HOST. OTG(On-The-Go) function supports USB host and this driver sents 'USB-Host event. So, unifies term to USB_HOST. Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com> [cw00.choi: Fix patch title to indicate the correct meaning of patch] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-02-24extcon: max77693: Fix cable name of MHL-TAJaewon Kim
This patch fixes extcon cable name of MHL-TA instead of MHL_TA to unify cable name style. Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-01-26extcon: max77693: Constify struct regmap_configKrzysztof Kozlowski
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-12-14Merge tag 'char-misc-3.19-rc1' of ↵Linus Torvalds
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 ...
2014-11-24extcon: max77693: Fix cable name of JIG_UART_ONKrzysztof Kozlowski
When JIG was set to "boot on" mode, the UART connection did not work because it was assigned to Dock-Car cable (path: audio), not JIG-UART-ON cable. This was introduced in 39bf369e4ed3 ("extcon: max77693: Add support dock device and buttons") while adding dock features. Assign the JIG-UART-ON back to UART path. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> [cw00.choi: Modify the patch name to remove specific board name] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-10-20extcon: drop owner assignment from platform_driversWolfram Sang
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>
2014-09-22extcon: max77693: Fix a bug occured at changing ADC debounce time.Jonghwa Lee
When it writes some value other than 0 to BTLDset and JIGset, muic device will be reset automatically. And it happens during updating ADC debounce time, because it shares same register. To update ADC debounce time without reset, set value only to ADCDbset and 0 to BTLDset and JIGset. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> [Remove un-needed masking operation by Chanwoo Choi] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-09-22extcon: max77693: Use resource managed interrupt lineKrzysztof Kozlowski
Use resource managed interrupt line devm_request_threaded_irq() to simplify a little cleanup paths: - no goto to cleanup label, - simpler remove function. Overall the driver size is decreased by 11 line of code. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-07-23extcon: Remove unnecessary OOM messagesJingoo Han
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>
2014-07-23Merge tag 'mfd-extcon-regulator-v3.17' of ↵Chanwoo Choi
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into extcon-next Immutable branch between MFD, Extcon and Regulator due for v3.17
2014-06-17mfd: max77693: Handle IRQs using regmapRobert Baldyga
This patch modifies mfd driver to use regmap for handling interrupts. It allows to simplify irq handling process. This modifications needed to make small changes in function drivers, which use interrupts. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-17mfd: max77693: Remove unnecessary wrapper functionsRobert Baldyga
This patch removes wrapper functions used to access regmap, and make driver using regmap_*() functions instead. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Mark Brown <broonie@linaro.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-16extcon: Set parent device of extcon device using prameter of ↵Chanwoo Choi
devm_extcon_dev_allocate This patch set the parent device of extcon device using first parameter of devm_extco_dev_allocate() to remove duplicate code on all of extcon provider drivers. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reported-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Mark Brown <broonie@kernel.org> Cc: Graeme Gregory <gg@slimlogic.co.uk> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2014-04-29extcon: max77693: Use devm_extcon_dev_allocate for extcon_devChanwoo Choi
This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Felipe Balbi <balbi@ti.com>
2014-04-24extcon: max77693: Use devm_extcon_dev_register()Sangjung Woo
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>
2014-04-24extcon: max77693: Use power efficient workqueue for delayed cable detectionKrzysztof Kozlowski
Schedule delayed cable detection work on power efficient workqueue so the scheduler won't wake up idle core for that work. This extends the idle time for CPU cores and conserves power. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-04-24extcon: max77693: Fix two NULL pointer exceptions on missing pdataKrzysztof Kozlowski
Fix NULL pointer exceptions when platform data is not supplied. Trace of one exception: Unable to handle kernel NULL pointer dereference at virtual address 00000008 pgd = c0004000 [00000008] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM Modules linked in: CPU: 2 PID: 1 Comm: swapper/0 Not tainted 3.14.0-12045-gead5dd4687a6-dirty #1628 task: eea80000 ti: eea88000 task.ti: eea88000 PC is at max77693_muic_probe+0x27c/0x528 LR is at regmap_write+0x50/0x60 pc : [<c041d1c8>] lr : [<c02eba60>] psr: 20000113 sp : eea89e38 ip : 00000000 fp : c098a834 r10: ee1a5a10 r9 : 00000005 r8 : c098a83c r7 : 0000000a r6 : c098a774 r5 : 00000005 r4 : eeb006d0 r3 : c0697bd8 r2 : 00000000 r1 : 00000001 r0 : 00000000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 4000404a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xeea88240) Stack: (0xeea89e38 to 0xeea8a000) 9e20: c08499fc eeb006d0 9e40: 00000000 00000000 c0915f98 00000001 00000000 ee1a5a10 c098a730 c09a88b8 9e60: 00000000 c098a730 c0915f98 00000000 00000000 c02d6aa0 c02d6a88 ee1a5a10 9e80: c0a712c8 c02d54e4 00001204 c0628b00 ee1a5a10 c098a730 ee1a5a44 00000000 9ea0: eea88000 c02d57b4 00000000 c098a730 c02d5728 c02d3a24 ee813e5c eeb9d534 9ec0: c098a730 ee22f700 c097c720 c02d4b14 c08174ec c098a730 00000006 c098a730 9ee0: 00000006 c092fd30 c09b8500 c02d5df8 00000000 c093cbb8 00000006 c0008928 9f00: 000000c3 ef7fc785 00000000 ef7fc794 00000000 c08af968 00000072 eea89f30 9f20: ef7fc85e c065f198 000000c3 c003e87c 00000003 00000000 c092fd3c 00000000 9f40: c08af618 c0826d58 00000006 00000006 c0956f58 c093cbb8 00000006 c092fd30 9f60: c09b8500 000000c3 c092fd3c c08e8510 00000000 c08e8bb0 00000006 00000006 9f80: c08e8510 c0c0c0c0 00000000 c0628fac 00000000 00000000 00000000 00000000 9fa0: 00000000 c0628fb4 00000000 c000f038 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 c0c0c0c0 c0c0c0c0 [<c041d1c8>] (max77693_muic_probe) from [<c02d6aa0>] (platform_drv_probe+0x18/0x48) [<c02d6aa0>] (platform_drv_probe) from [<c02d54e4>] (driver_probe_device+0x140/0x384) [<c02d54e4>] (driver_probe_device) from [<c02d57b4>] (__driver_attach+0x8c/0x90) [<c02d57b4>] (__driver_attach) from [<c02d3a24>] (bus_for_each_dev+0x54/0x88) [<c02d3a24>] (bus_for_each_dev) from [<c02d4b14>] (bus_add_driver+0xe8/0x204) [<c02d4b14>] (bus_add_driver) from [<c02d5df8>] (driver_register+0x78/0xf4) [<c02d5df8>] (driver_register) from [<c0008928>] (do_one_initcall+0xc4/0x174) [<c0008928>] (do_one_initcall) from [<c08e8bb0>] (kernel_init_freeable+0xfc/0x1c8) [<c08e8bb0>] (kernel_init_freeable) from [<c0628fb4>] (kernel_init+0x8/0xec) [<c0628fb4>] (kernel_init) from [<c000f038>] (ret_from_fork+0x14/0x3c) Code: caffffe7 e59d200c e3550001 b3a05001 (e5923008) ---[ end trace 85db969ce011bde7 ]--- Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: <stable@vger.kernel.org> Fixes: 190d7cfc8632 Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2013-09-26Merge tag 'extcon-next-for-3.13' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next Chanwoo writes: Update extcon for 3.13 This patchset modify extcon core to remove unnecessary allocation sequence for 'dev' instance and change extcon_dev_register() interface. extcon-gpio use gpiolib API to get debounce time and include small fix of extcon core/device driver. Detailed description for patchset: 1. Modify extcon core driver - The extcon-gpio driver use gpio_set_debounce() API provided from gpiolib if gpio driver for SoC support gpio_set_debounce() function and support 'gpio_ activ_low' filed to check whether gpio active state is 1(high) or 0(low). - Change field type of 'dev' in structure extcon_dev and remove the sequence of allocating memory of 'struct dev' on extcon_dev_register() function because extcon device must need 'struct device. - Change extcon_dev_register() prototype to simplify it and remove unnecessary parameter as below: 2. Fix coding style and typo - extcon core : Fix indentation coding style and remove unnecessary casting - extcon-max8997 : Fix checkpatch warning - extcon-max77693 : Fix checkpatch warning - extcon-arizona : Fix typo of comment and modify minor issue - extcon-palmas : Use dev_get_platdata() 3. Modify extcon-arizona driver - Modify minor issue about micbias and comparision statement
2013-09-27extcon: Simplify extcon_dev_register() prototype by removing unnecessary ↵Chanwoo Choi
parameter This patch remove extcon_dev_register()'s second parameter which means the pointer of parent device to simplify prototype of this function. So, if extcon device has the parent device, it should set the pointer of parent device to edev.dev.parent in extcon device driver instead of in extcon_dev_register(). Cc: Graeme Gregory <gg@slimlogic.co.uk> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
2013-09-27extcon: max77693: Fix checkpatch warningSachin Kamat
Fixes the following warning: WARNING: space prohibited before semicolon Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2013-09-26extcon: Fix up 80 column coding style issuesChanwoo Choi
This patch fix 80 column coding sytle issues by using checkpatch script. Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-09extcon: max77693: Fix return valueSachin Kamat
Return the value obtained from the function instead of hardcoding. Silences the following warnings: drivers/extcon/extcon-max77693.c:297 max77693_muic_set_path() info: why not propagate 'ret' from max77693_update_reg() instead of (-11)? drivers/extcon/extcon-max77693.c:310 max77693_muic_set_path() info: why not propagate 'ret' from max77693_update_reg() instead of (-11)? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
2013-04-09extcon: max77693: Staticize default_init_dataSachin Kamat
Commit 0ec83bd246 ("extcon: max77693: Initialize register of MUIC device to bring up it without platform data") added this structure but forgot to make it static. Without this patch we get the following warning: drivers/extcon/extcon-max77693.c:41:26: warning: symbol 'default_init_data' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
2013-03-13extcon: max77693: Initialize register of MUIC device to bring up it without ↵Chanwoo Choi
platform data This patch set default value of MUIC register to bring up MUIC device. If user don't set some initial value for MUIC device through platform data, extcon-max77693 driver use 'default_init_data' to bring up base operation of MAX77693 MUIC device. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
2013-03-13extcon: max77693: Fix bug of wrong pointer when platform data is not usedChanwoo Choi
This patch fix wrong pointer of platform data. If each machine set platform data for h/w path or delay time of workqueue, this driver happen kernel panic related to null pointer. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
2013-02-14extcon: max77693: Make max77693_extcon_cable staticSachin Kamat
'max77693_extcon_cable' is used only in this file. Hence make it static. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
2013-02-13extcon: max77693: Remove unnecessary goto statement to improve readabilityChanwoo Choi
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-13extcon: max77693: Convert to devm_input_allocate_device()Chanwoo Choi
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-15extcon: max77693: Add support Dock-Smart device for desktop modeChanwoo Choi
This patch support the detection of Dock-Smart device which include three type of port(HDMI, USB for mouse/keyboard and Micro-USB for USB/TA cable).The Dock-Smart device need always exteranl power supply (USB/TA cable through micro-usb cable). Dock-Smart device support screen output of target to separate monitor and mouse/keyboard for desktop mode. Features of 'Dock-Smart device' - Support HDMI - Support external output feature of audio - Support charging through micro-usb port without data connection if TA cable is connected to target. - Support charging and data connection through micro-usb port if USB cable is connected between target and host device. - Support OTG device (Mouse/Keyboard) Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
2013-01-15extcon: max77693: Fix bug when detecting MHL/Dock-Audio with USB/TA cableChanwoo Choi
This patch fix bug that muic couldn't detect MHL/Dock-Audio with USB/TA cable on exception situation. I explain detail case on following: When MHL(with USB/TA cable) or Dock-Audio with USB/TA cable is attached, the MUIC device happen following two interrupt. - 'MAX77693_MUIC_IRQ_INT1_ADC' for detecting MHL/Dock-Audio. - 'MAX77693_MUIC_IRQ_INT2_CHGTYP' for detecting USB/TA cable connected to MHL/Dock-Audio. Always, happen eariler MAX77693_MUIC_IRQ_INT1_ADC interrupt than MAX77693_MUIC_IRQ_INT2_CHGTYP interrupt. If user attach MHL with USB/TA cable and immediately detach MHL with USB/TA cable before MAX77693_MUIC_IRQ_INT2_CHGTYP interrupt is happened, USB/TA connected to MHL cable remain connected state to target. But USB/TA connected to MHL cable isn't connected to target. user be faced with unusual action. So, driver should check this situation in spite of that, previous charger type is N/A. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 04:37:36 +0000