There is a bit of mess between cros-ec mfd includes and platform
includes. For example, we have a linux/mfd/cros_ec.h include that
exports the interface implemented in platform/chrome/cros_ec_proto.c. Or
we have a linux/mfd/cros_ec_commands.h file that is non related to the
multifunction device (in the sense that is not exporting any function of
the mfd device). This causes crossed includes between mfd and
platform/chrome subsystems and makes the code difficult to read, apart
from creating 'curious' situations where a platform/chrome driver includes
a linux/mfd/cros_ec.h file just to get the exported functions that are
implemented in another platform/chrome driver.
In order to have a better separation on what the cros-ec multifunction
driver does and what the cros-ec core provides move and rework the
affected includes doing:
- Move cros_ec_commands.h to include/linux/platform_data/cros_ec_commands.h
- Get rid of the parts that are implemented in the platform/chrome/cros_ec_proto.c
driver from include/linux/mfd/cros_ec.h to a new file
include/linux/platform_data/cros_ec_proto.h
- Update all the drivers with the new includes, so
- Drivers that only need to know about the protocol include
- linux/platform_data/cros_ec_proto.h
- linux/platform_data/cros_ec_commands.h
- Drivers that need to know about the cros-ec mfd device also include
- linux/mfd/cros_ec.h
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Series changes: 3
- Fix dereferencing pointer to incomplete type 'struct cros_ec_dev' (lkp)
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Now, the ChromeOS EC core driver has nothing related to an MFD device, so
move that driver from the MFD subsystem to the platform/chrome subsystem.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
[cw00.choi: Edit patch title and description for readability]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This simplifies and standardizes axp288_extcon_log_rsi()
by using for_each_set_bit() library function.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
It seems from the very beginning the error check has been missed
in axp288_extcon_log_rsi(). Add it here.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The only thing that makes sense is to request a falling edge interrupt
if the line is active low and a rising edge interrupt if the line is
active high, so just do that and get rid of the assignment from
platform data. The GPIO descriptor knows if the line is active high
or low.
Also make irq a local variable in probe(), it's not used anywhere else.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[cw00.choi: Fix build error of data->irq_flags]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The older compatible variant of this chip is called FSA880
and works the same way, if we need some quirks in the future,
it is good to let it have its own compatible string.
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an
ERRPTR which we use in error handling.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Use use device_property_count_u32() directly, that makes code neater.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Detailed description for this pull request:
1. Add new extcon-fsa9480 extcon provider driver
- It is extcon provide driver for Fairchild Semiconductor
FSA9480 microUSB switch and accessory detector chip which
detects the kind of external connector like usb, charger,
audio, video and so on.
2.
- Add the exception handling code for extcon-arizona.c
when using the regmap interface.
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Merge tag 'extcon-next-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes:
Update extcon for 5.3
Detailed description for this pull request:
1. Add new extcon-fsa9480 extcon provider driver
- It is extcon provide driver for Fairchild Semiconductor
FSA9480 microUSB switch and accessory detector chip which
detects the kind of external connector like usb, charger,
audio, video and so on.
2.
- Add the exception handling code for extcon-arizona.c
when using the regmap interface.
* tag 'extcon-next-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon:
extcon: fsa9480: Fix Kconfig warning and build errors
extcon: Add fsa9480 extcon driver
dt-bindings: extcon: Add support for fsa9480 switch
extcon: arizona: Correct error handling on regmap_update_bits_check
Fix Kconfig dependency warning and subsequent build errors caused by
the Kconfig entry for EXTCON-FSA9480. It should not select
REGMAP_I2C unless I2C is already set/enabled.
WARNING: unmet direct dependencies detected for REGMAP_I2C
Depends on [n]: I2C [=n]
Selected by [y]:
- EXTCON_FSA9480 [=y] && EXTCON [=y] && INPUT [=y]
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
[cw00.choi: adjust the patch title and remove the long warning messages]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this software is licensed under the terms of the gnu general public
license version 2 as published by the free software foundation and
may be copied distributed and modified under those terms
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 6 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.720704315@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this software is licensed under the terms of the gnu general public
license version 2 as published by the free software foundation and
may be copied distributed and modified under those terms this
program is distributed in the hope that it will be useful but
without any warranty without even the implied warranty of
merchantability or fitness for a particular purpose see the gnu
general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 285 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 655 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 3 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [kishon] [vijay] [abraham]
[i] [kishon]@[ti] [com] this program is distributed in the hope that
it will be useful but without any warranty without even the implied
warranty of merchantability or fitness for a particular purpose see
the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [graeme] [gregory]
[gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
[kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
[hk] [hemahk]@[ti] [com] this program is distributed in the hope
that it will be useful but without any warranty without even the
implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1105 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 3029 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ensure the case when regmap_update_bits_check fails and the change
variable is not updated is handled correctly.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the "real" big set of char/misc driver patches for 5.2-rc1
Loads of different driver subsystem stuff in here, all over the places:
- thunderbolt driver updates
- habanalabs driver updates
- nvmem driver updates
- extcon driver updates
- intel_th driver updates
- mei driver updates
- coresight driver updates
- soundwire driver cleanups and updates
- fastrpc driver updates
- other minor driver updates
- chardev minor fixups
Feels like this tree is getting to be a dumping ground of "small driver
subsystems" these days. Which is fine with me, if it makes things
easier for those subsystem maintainers.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc update part 2 from Greg KH:
"Here is the "real" big set of char/misc driver patches for 5.2-rc1
Loads of different driver subsystem stuff in here, all over the places:
- thunderbolt driver updates
- habanalabs driver updates
- nvmem driver updates
- extcon driver updates
- intel_th driver updates
- mei driver updates
- coresight driver updates
- soundwire driver cleanups and updates
- fastrpc driver updates
- other minor driver updates
- chardev minor fixups
Feels like this tree is getting to be a dumping ground of "small
driver subsystems" these days. Which is fine with me, if it makes
things easier for those subsystem maintainers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
intel_th: msu: Add current window tracking
intel_th: msu: Add a sysfs attribute to trigger window switch
intel_th: msu: Correct the block wrap detection
intel_th: Add switch triggering support
intel_th: gth: Factor out trace start/stop
intel_th: msu: Factor out pipeline draining
intel_th: msu: Switch over to scatterlist
intel_th: msu: Replace open-coded list_{first,last,next}_entry variants
intel_th: Only report useful IRQs to subdevices
intel_th: msu: Start handling IRQs
intel_th: pci: Use MSI interrupt signalling
intel_th: Communicate IRQ via resource
intel_th: Add "rtit" source device
intel_th: Skip subdevices if their MMIO is missing
intel_th: Rework resource passing between glue layers and core
intel_th: SPDX-ify the documentation
intel_th: msu: Fix single mode with IOMMU
coresight: funnel: Support static funnel
dt-bindings: arm: coresight: Unify funnel DT binding
coresight: replicator: Add new device id for static replicator
...
* acpi-utils:
gpio: merrifield: Fix build err without CONFIG_ACPI
ACPI / utils: Remove deprecated function since no user left
ASoC: Intel: cht_bsw_rt5672: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: cht_bsw_rt5645: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcr_rt5651: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcr_rt5640: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcht_es8316: Convert to use acpi_dev_get_first_match_dev()
ASoC: Intel: bytcht_da7213: Convert to use acpi_dev_get_first_match_dev()
gpio: merrifield: Convert to use acpi_dev_get_first_match_dev()
extcon: axp288: Convert to use acpi_dev_get_first_match_dev()
ACPI / utils: Introduce acpi_dev_get_first_match_dev() helper
* acpi-video:
ACPI: video: Use vendor backlight on Sony VPCEH3U1E
* acpi-soc:
ACPI / LPSS: Use acpi_lpss_* instead of acpi_subsys_* functions for hibernate
* acpi-button:
ACPI: button: reinitialize button state upon resume
Microphone detection provides the button detection features on the
Arizona CODECs as such it will be running if the jack is currently
inserted. If the driver is unbound whilst the jack is still inserted
this will cause warnings from the regulator framework as the MICVDD
regulator is put but was never disabled.
Correct this by disabling microphone detection on driver removal and if
the microphone detection was running disable the regulator and put the
runtime reference that was currently held.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
As Hans de Goede pointed, using this driver without ACPI
makes little sense, so add ACPI dependency to Kconfig entry
to fix a build error while CONFIG_ACPI is not set.
drivers/extcon/extcon-axp288.c: In function 'axp288_extcon_probe':
drivers/extcon/extcon-axp288.c:363:20: error: dereferencing pointer to incomplete type
put_device(&adev->dev);
Fixes: 0cf064db94 ("extcon: axp288: Convert to use acpi_dev_get_first_match_dev()")
Reported-by: Hulk Robot <hulkci@huawei.com>
Suggested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
On Intel Merrifield the Basin Cove PMIC provides a feature to detect
the USB connection type. This driver utilizes the feature in order
to support the USB dual role detection.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
We are going to use some definitions in the other Intel extcon drivers,
thus, split out them to a common header file.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Give the line the asterisk it wanted to fix the build warning.
[Build warning message]
Building with W=1 reports:
CC drivers/extcon/devres.o
drivers/extcon/devres.c:208: warning: bad line:
- Resource-managed extcon_unregister_notifier()
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
[cw00.choi: Edit the patch subject and description]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
In some configuration external charger "#charge enable" signal is
connected to PMIC. Enable it at device probing to allow charging.
Save CHGRCTRL0 and CHGDISCTR registers at driver probing and restore
them at driver unbind to re-enable hardware charging control if it was
enabled before.
Tested at Lenovo Yoga Book (YB1-X91L).
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Whiskey Cove Cherry Trail PMIC requires disabling OTG host mode before
of charger detection procedure. Do this by manipulationg of CHGRCTRL1
register.
Source: APCI DSDT code of Lenovo Yoga Book YB1-X91L and open-sourced
Intel's drivers.
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The PTN5150 dependencies look like they were meant to do the
right thing, but they actually should not allow building without
I2C for compile testing, as that results in a Kconfig warning
and subsequent build failure:
WARNING: unmet direct dependencies detected for REGMAP_I2C
Depends on [m]: I2C [=m]
Selected by [y]:
- EXTCON_PTN5150 [=y] && EXTCON [=y] && (I2C [=m] && GPIOLIB [=y] || COMPILE_TEST [=y])
Selected by [m]:
- EEPROM_AT24 [=m] && I2C [=m] && SYSFS [=y]
- KEYBOARD_CAP11XX [=m] && !UML && INPUT [=y] && INPUT_KEYBOARD [=y] && OF [=y] && I2C [=m]
- INPUT_DRV260X_HAPTICS [=m] && !UML && INPUT_MISC [=y] && INPUT [=y] && I2C [=m] && (GPIOLIB [=y] || COMPILE_TEST [=y])
- ... [many others]
Add parentheses around the expression so we can compile-test
without GPIOLIB but not without I2C.
Fixes: 4ed754de2d ("extcon: Add support for ptn5150 extcon driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
acpi_dev_get_first_match_name() is deprecated and going to be removed
because it leaks a reference.
Convert the driver to use acpi_dev_get_first_match_dev() instead.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In case of error, the function devm_gpiod_get() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
PTN5150 is a small thin low power CC (Configurationn Channel)
Logic chip supporting the USB Type-C connector application with
CC control logic detection and indication functions.
Signed-off-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>
[cw00.choi: Fix bulid dependency and clean-up code]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
MAX8997 driver disables automatic path selection from MicroUSB connector
and manually sets path to either UART or USB lines. However the code for
setting USB path worked only for USB host mode (when ID pin is set
to ground). When standard USB cable (USB device mode) is connected, path
registers are not touched. This means that once the non-USB accessory is
connected to MAX8997-operated micro USB port, the path is no longer set
to USB and USB device mode doesn't work. This patch fixes it by setting
USB path both for USB and USB host modes.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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>
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>
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>
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>
Convert driver to use SPDX identifier.
While here, fix MODULE_LICENSE() string to be the same as license text states.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Convert driver to use SPDX identifier.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
USBID is 2-bit bit field according to specification. Make it clear.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
There is no suffix MASK in the spec and other small spelling fixes.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
When we have first case to fall through it's not enough to put
single comment there to satisfy compiler. Instead of doing that,
return fall back value directly from default case.
This to avoid following warnings:
drivers/extcon/extcon-intel-cht-wc.c: In function ‘cht_wc_extcon_get_charger’:
include/linux/device.h:1420:2: warning: this statement may fall through [-Wimplicit-fallthrough=]
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/extcon/extcon-intel-cht-wc.c:148:3: note: in expansion of macro ‘dev_warn’
dev_warn(ext->dev,
^~~~~~~~
drivers/extcon/extcon-intel-cht-wc.c:152:2: note: here
case CHT_WC_USBSRC_TYPE_SDP:
^~~~
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Switch to use kasprintf() instead of open coded variant.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
When assign unions we need to supply non-scalar value, otherwise
static analyzer is not happy:
CHECK drivers/extcon/extcon.c
drivers/extcon/extcon.c:631:22: warning: cast to non-scalar
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Detailed description for this pull request:
1. Release locking when sending the connector state in extcon_sync()
- Previously, extcon used the spinlock before calling the notifier_call_chain
to prevent the scheduled out of task and to prevent the notification delay.
When spinlock is locked for sending the notification, deadlock issue
occured on the side of extcon consumer device. To fix this issue on extcon
consumer device, release locking when sending the connector state.
2. Fix minor issues of extcon provider driver
- extcon-intel-int3496.c uses 'linux/gpio/consumer.h' instead of 'linux/gpio.h'
- extcon-usbc-cors-ec.c adds SPDX license and fix the wrong license information
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Merge tag 'extcon-next-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes:
Update extcon for 4.19
Detailed description for this pull request:
1. Release locking when sending the connector state in extcon_sync()
- Previously, extcon used the spinlock before calling the notifier_call_chain
to prevent the scheduled out of task and to prevent the notification delay.
When spinlock is locked for sending the notification, deadlock issue
occured on the side of extcon consumer device. To fix this issue on extcon
consumer device, release locking when sending the connector state.
2. Fix minor issues of extcon provider driver
- extcon-intel-int3496.c uses 'linux/gpio/consumer.h' instead of 'linux/gpio.h'
- extcon-usbc-cors-ec.c adds SPDX license and fix the wrong license information
Previously, extcon used the spinlock before calling the notifier_call_chain
to prevent the scheduled out of task and to prevent the notification delay.
When spinlock is locked for sending the notification, deadlock issue
occured on the side of extcon consumer device. To fix this issue,
extcon consumer device should always use the work. it is always not
reasonable to use work.
To fix this issue on extcon consumer device, release locking when sending
the notification of connector state.
Fixes: ab11af049f ("extcon: Add the synchronization extcon APIs to support the notification")
Cc: stable@vger.kernel.org
Cc: Roger Quadros <rogerq@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
