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Convert to using the newer gpiod interface for the micd_pol_gpio.
Although we still carry support for the old gpio interface from pdata.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
[cw00.choi: Modify the patch titlei to include the detailed content]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch adds bindings for the basic microphone detection platform
data.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The device properties API will load data from both device tree and ACPI,
update the binding to use this API instead of the OF API.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch removes the mutually_exclusive array of extcon-palmas.c.
After used the unique id of each external connector on 2a9de9c0f08d
("extcon: Use the unique id for external connector instead of string"),
extcon driver can't directly handle the bit value indicating the external
connectors.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch removes the optional print_state() function pointer which included
in 'struct extcon_dev' because the extcon must maintain the consistent name
of extcon device on sysfs instead of inconsistent state of external connectors.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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IRQ signal before driver probe is needless because driver sends
current state after platform booting done.
So, this patch clears MUIC IRQ bits before request IRQ.
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Currently the extcon code notifiers the interested listeners
before it updates the extcon state with the new state.
This will cause the listeners that use extcon_cable_get_state()
to get the stale state and loose the new state.
Fix this by first changing the extcon state variable and then
notifying listeners.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Users of find_cable_index_by_name() will cause a kernel hang
as the while loop counter is never incremented and end condition
is never reached.
extcon_get_cable_state() and extcon_set_cable_state() are broken
because they use cable index instead of cable id. This causes
the first cable state (cable.0) to be always invalid in sysfs
or extcon_get_cable_state() users.
Introduce a new function find_cable_id_by_name() that fixes
both of the above issues.
Fixes: commit 73b6ecdb93e8 ("extcon: Redefine the unique id of supported external connectors without 'enum extcon' type")
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
[cw00.choi: Fix minor coding style]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch fixes NULL pointer error by removing the unneeded kfree() call
of edev->name because extcon-palmas no longer allocate the memory for edev->name.
Fixes: d71aadda19f8 ("extcon: Remove the optional name of extcon device")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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Add MAX77843_MUIC prefix to some of the defines used in max77843 extcon
driver so the max77693-private.h can be included simultaneously with
max77843-private.h.
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>
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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>
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Switch to the same definition of state container as in MAX77693 drivers.
This will allow usage of one regulator driver in both devices: MAX77693
and MAX77843.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@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>
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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>
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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>
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'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>
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This patch removes the optional print_name() function pointer included in
'struct extcon_dev' because the extcon must maintain the consistent name of
extcon device on sysfs instead of inconsistent name. After merged patch[1],
extcon can maintain the consistent name of extcon device without any hard-coded
device name.
[1] https://lkml.org/lkml/2015/4/27/258
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Previously, extcon consumer driver used the extcon_register_interest()
to register the notifier chain and then to receive the notifier event
when external connector's state is changed. When registering the notifier chain
for specific external connector with extcon_register_interest(), it used the
the string name of external connector directly. There are potential problem
because of unclear, non-standard and inconsequent cable name. Namely,
it is not appropriate method to identify each external connector.
So, this patch modify the prototype of extcon_register_notifier() by using
the 'enum extcon' which are the unique id for each external connector
instead of unclear string method.
- Previously, the extcon consumer driver used the extcon_register_interest()
with 'cable_name' to point out the specific external connector. Also. it used
the un-needed structure (struct extcon_specific_cable_nb).
: int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name, const char *cable_name,
struct notifier_block *nb)
- Newly, the updated extcon_register_notifier() would definitely support
the same feature to detech the changed state of external connector without
any specific structure (struct extcon_specific_cable_nb).
: int extcon_register_notifier(struct extcon_dev *edev, enum extcon id,
struct notifier_block *nb)
This patch support the both extcon_register_interest() and new extcon_register_
notifier(). But the extcon_{register|unregister}_interest() will be deprecated
because extcon core would support the notifier event for extcon consumer driver
with only updated extcon_register_notifier() and 'extcon_specific_cable_nb'
will be removed if there are no extcon consumer driver with legacy
extcon_{register|unregister}_interest().
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
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This patch uses the capital letter for the name of external connectors
to improve the readability instead of small letter.
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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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>
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Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.
Without this patch there is no call to gpiod_direction_input but the
gpio is used for irq reporting and for that the line should be in input
mode.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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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>
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The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.
Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.
If GPIOLIB=n and asm-generic/gpio.h is not used:
drivers/extcon/extcon-usb-gpio.c: In function ‘usb_extcon_detect_cable’:
drivers/extcon/extcon-usb-gpio.c:63: error: implicit declaration of function ‘gpiod_get_value_cansleep’
drivers/extcon/extcon-usb-gpio.c: In function ‘usb_extcon_probe’:
drivers/extcon/extcon-usb-gpio.c:116: error: implicit declaration of function ‘devm_gpiod_get’
drivers/extcon/extcon-usb-gpio.c:116: warning: assignment makes pointer from integer without a cast
drivers/extcon/extcon-usb-gpio.c:122: error: implicit declaration of function ‘gpiod_set_debounce’
drivers/extcon/extcon-usb-gpio.c:129: error: implicit declaration of function ‘gpiod_to_irq’
Add the missing #include <linux/gpio/consumer.h> to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch removes the 'num_cables' filed from 'struct adc_jack_pdata'
because 'struct extcon_dev' contains the 'max_supported' field which
means the number of supported cable of extcon device.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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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>
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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>
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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>
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detection
This patch add support for select accessory detect mode to HPDETL or HPDETR.
Arizona provides a headphone detection circuit on the HPDETL and HPDETR pins
to measure the impedance of an external load connected to the headphone.
Depending on board design, headphone detect pins can change to HPDETR or HPDETL.
Signed-off-by: Inha Song <ideal.song@samsung.com>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The headphone clamping is not set correctly currently, this was missed
because the wm8280 patches and the patch fixing the clamping for wm5110
went upstream at very similar times. This patch sets the headphone
clamping correctly for wm8280.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch removes the setting of device name. Instead, extcon_dev_register()
set the device name such as 'extcon[number]' naming method.
- /sys/class/extcon/Headset Jack -> /sys/class/extcon/extcon[number]
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
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This patch clean up the extcon core driver by fixing the checkpatch warning
and minor coding style issue.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch adds the extcon_get_edev_name() API to get the name of extcon device
because all information inclued in the structure extcon_dev should be accessed
by extcon core API instead of directly accessing the data.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch modify the device name as extcon[X] for sysfs by using the 'extcon'
prefix word instead of separate device name. On user-space aspect, user would
find the some extcon drvier with extcon[X] pattern. So, this patch modify the
device name as following:
- /sys/class/extcon/[device name] -> /sys/class/extcon/extcon[X]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch adds the extcon support for AXP288 PMIC which
has the BC1.2 charger detection capability. Additionally
it also adds the USB mux switching support b/w SOC and PMIC
based on GPIO control.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
[cw00.choi: Modify the log message to keep the consistent log message pattern]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Renamed to hpdet_ip_version to make it clearer what it does
and that the value in it is simply a version number.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch adds the manufactor name of each extcon device
and removes un-necessary comment in Kconfig.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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IRQ handler touches info->edev, so if interrupt occurs before extcon
device initialization it can cause NULL pointer dereference. Doing extcon
initialization before IRQ handler registration fixes this problem.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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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 patchset for 4.1-rc1.
Lots of different driver subsystem updates here, nothing major, full
details are in the shortlog.
All of this has been in linux-next for a while"
* tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (133 commits)
mei: trace: remove unused TRACE_SYSTEM_STRING
DTS: ARM: OMAP3-N900: Add lis3lv02d support
Documentation: DT: lis302: update wakeup binding
lis3lv02d: DT: add wakeup unit 2 and wakeup threshold
lis3lv02d: DT: use s32 to support negative values
Drivers: hv: hv_balloon: correctly handle num_pages>INT_MAX case
Drivers: hv: hv_balloon: correctly handle val.freeram<num_pages case
mei: replace check for connection instead of transitioning
mei: use mei_cl_is_connected consistently
mei: fix mei_poll operation
hv_vmbus: Add gradually increased delay for retries in vmbus_post_msg()
Drivers: hv: hv_balloon: survive ballooning request with num_pages=0
Drivers: hv: hv_balloon: eliminate jumps in piecewiese linear floor function
Drivers: hv: hv_balloon: do not online pages in offline blocks
hv: remove the per-channel workqueue
hv: don't schedule new works in vmbus_onoffer()/vmbus_onoffer_rescind()
hv: run non-blocking message handlers in the dispatch tasklet
coresight: moving to new "hwtracing" directory
coresight-tmc: Adding a status interface to sysfs
coresight: remove the unnecessary configuration coresight-default-sink
...
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Since extcon.c is using raw_notifiers it must protect the notifier
list itself when [un]registering notifiers to avoid the list changing while
extcon_update_state is walking the list (through raw_notifier_call_chain).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[cw00.choi: Apply this patch to extcon.c driver instead of old extcon-class.c]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The i2c_new_dummy() return the NULL if error happen. So, If i2c_new_dummy()
return NULL, max77843_init_muic_regmap() return the proper error value
(-ENOMEM);
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[cw00.choi: Use -ENOMEM instead of -ENODEV and modify patch description]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch fixes the variable type of 'ret' from 'unsigned int' to 'int' type
because the return type of regmap_update_bits() is 'int' type.
Fixes: 27a28d32b4f2 ('extcon: max77843: Add max77843 MUIC driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[cw00.choi: Fix the patch description]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch fixes the checkpatch warning about coding style.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch renames the extcon core driver from extcon-class.c
to extcon.c because '-class' postfix is not necessary.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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wm5110 requires slightly different configuration of the headphone
clamps to other Arizona devices. Otherwise headphone detection accuracy
will be way off. This patch adds the needed clamping.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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arizona_extcon_do_magic does not lend a lot of clarity to the purpose
of the function, and as all the registers used are described in the
datasheet there is no need to obfuscate the code. This patch renames the
function to arizona_extcon_hp_clamp, as it controls clamping on the
headphone output.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch adds MAX77843 extcon driver to support for MUIC(Micro
USB Interface Controller) device by using EXTCON subsystem to handle
various external connectors.
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This driver observes the USB ID pin connected over a GPIO and
updates the USB cable extcon states accordingly.
The existing GPIO extcon driver is not suitable for this purpose
as it needs to be taught to understand USB cable states and it
can't handle more than one cable per instance.
For the USB case we need to handle 2 cable states.
1) USB (attach/detach)
2) USB-HOST (attach/detach)
This driver can be easily updated in the future to handle VBUS
events in case it happens to be available on GPIO for any platform.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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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>
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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>
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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>
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