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Switch to use managed variant of acpi_dev_add_driver_gpios() to simplify
error path and fix potentially wrong assingment if ->probe() fails.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Depend on the architecture the device actuall is in, also add
dep on the compile test to ensure continued coverage.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "devm_kcalloc".
* Replace the specification of a data structure by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Adjust three words in this description for a function.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "devm_kcalloc".
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch just uses the BIT() macro to make the code simple.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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When we leave host-mode because the id-pin is no longer connected to
ground, the 5v boost converter is normally still on, so we will see
Vbus, but it is not from a charger (normally) so the charger-type
detection will fail.
This commit silences the cht_wc_extcon_get_charger() false-positive
errors when we're leaving host mode.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Disable the 5v boost converter on probe in case it was left on by
the BIOS, this fixes 2 problems:
1) This gets seen by the external battery charger as a valid Vbus
supply and it then tries to feed Vsys from this creating a
feedback loop which causes aprox. 300 mA extra battery drain
(and unless we drive the external-charger-disable pin high it
also tries to charge the battery causing even more feedback).
2) This gets seen by the pwrsrc block as a SDP USB Vbus supply
Since the external battery charger has its own 5v boost converter
which does not have these issues, we simply turn the separate
external 5v boost converter off and leave it off entirely.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch removes the porting compatibility for switch class
because there is no any usage and requirement of swich class
over a couple of years.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Add a driver for charger detection / control on the Intel Cherrytrail
Whiskey Cove PMIC.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The USB cable state can change during suspend/resume
so be sure to check and update the extcon state.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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We must check for ID/VBUS changes during resume irrespective
of whether our device wakeup is enabled or not.
Without this we seem to be missing ID/VBUS events after
system suspend/resume.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Whether the USB port as a wakeup source should be determined by user,
but not enabled by default.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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As the HPDET can't be aborted mid way through we should not allow any new
insertion to be processed until the previous HPDET has finished. It is very
unlikely but with low enough debounce settings you could start a new HPDET
before the old one has completed, which results in an erroneous reading.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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connectors
The extcon core already provides the extcon_register_notifier() function
in order to register the notifier block which is used to monitor
the state change for the specific external connector such as EXTCON_USB,
EXTCON_USB_HOST and so on. The extcon consumer uses the this function.
The extcon consumer might need to monitor the all supported external
connectors from the extcon device. In this case, The extcon consumer
should have each notifier_block structure for each external connector.
This patch adds the new extcon_register_notifier_all() function
that extcon consumer is able to monitor the state change of all
supported external connectors by using only one notifier_block structure.
- List of new added functions:
int extcon_register_notifier_all(struct extcon_dev *edev,
struct notifier_block *nb);
int extcon_unregister_notifier_all(struct extcon_dev *edev,
struct notifier_block *nb);
int devm_extcon_register_notifier_all(struct device *dev,
struct extcon_dev *edev, struct notifier_block *nb);
void devm_extcon_unregister_notifier_all(struct device *dev,
struct extcon_dev *edev, struct notifier_block *nb);
Suggested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
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The commit 942c7924a51e introduced a check for ACPI handle for the
device that never appears on any ACPI-enabled platform so far. It seems
a confusion with extcon-intel-int3496 which does support ACPI-enabled
platforms.
Revert commit 942c7924a51e to avoid any confusion in the future.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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With the new more strict ACPI gpio code the dsdt's IoRestriction
flags are honored on gpiod_get, but in some dsdt's it is wrong,
so explicitly call gpiod_direction_input on the id gpio if
necessary.
This fixes the following errors when the int3496 code is used
together with the new more strict ACPI gpio code:
[ 2382.484415] gpio gpiochip1: (INT33FF:01): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ
[ 2382.484425] gpio gpiochip1: (INT33FF:01): unable to lock HW IRQ 3 for IRQ
[ 2382.484429] genirq: Failed to request resources for INT3496:00 (irq 174) on irqchip chv-gpio
[ 2382.484518] intel-int3496 INT3496:00: can't request IRQ for USB ID GPIO: -22
[ 2382.500359] intel-int3496: probe of INT3496:00 failed with error -22
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Now that we've an acpi mapping table we should be using gpiod_get
instead of gpiod_get_index.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Add dependency on X86 so it doesn't show up on other arches and
add a option for compile test so it still gets build coverage.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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In order to make GPIO ACPI library stricter prepare users of
gpiod_get_index() to correctly behave when there no mapping is
provided by firmware.
Here we add explicit mapping between _CRS GpioIo() resources and
their names used in the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Update GPIO pin names in extcon-intel-int3496.c driver to follow
the existing extcon binding.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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gpiod_to_irq() doesn't return 0. Thus, we just adjust condition and
replace -EINVAL by actual error code it returns.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Fix typos and add the following to the scripts/spelling.txt:
swithc||switch
swithced||switched
swithcing||switching
Link: http://lkml.kernel.org/r/1481573103-11329-3-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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User is not interested in USB cable events appearing on the
console. Use dev_dbg() instead of dev_info() for these events.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch renames the EXTCON_USB_HOST by using '-' char because
the name of all external connector use the '-' char instead of '_' char.
- "USB_HOST" -> "USB-HOST"
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch adds the new EXTCON_CHG_USB_PD for USB PD (Power Delivery)[1].
The USB Power Delivery specification specifies that USB cable provides
the increased power more than 7.5W to device with larger power demand.
The EXTCON_CHG_USB_PD has the EXTCON_TYPE_CHG and EXTCON_TYPE_USB type.
[1] https://en.wikipedia.org/wiki/USB#PD
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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At some systems, the pinctrl setting will be lost or needs to
set as "sleep" state to save power consumption. So, we need to
configure pinctrl as "sleep" state when system enters suspend,
and as "default" state after system resumes. In this way, the
pinctrl value can be recovered as "default" state after resuming.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch moves the 'struct extcon_dev' of extcon subsystem
to driver/extcon/extcon.h header file because the struct extcon_dev have to
be handled by extcon API to guarantee the consistency of strcut extcon_dev.
If external drivers are able to touch the struct extcon_dev directly, it might
cause the critical and unknown problem.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch uses the internal dev instance instead of using the field of struct
extcon_dev because the core structure (extcon_dev) of extcon have to be touched
by only extcon core driver.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Add an extcon driver for USB OTG ports controlled by an Intel INT3496
ACPI device (e.g. Baytrail, Cherrytrail devices).
Signed-off-by: David Cohen <david.a.cohen@intel.com>
[hdgoede@redhat.com: Port to current kernel, cleanup, submit upstream]
[hdgoede@redhat.com: Add Documentation/extcon/intel-int3496.txt]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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According to the documentation, we should set the EXTCON_USB when
one SDP charger connector was reported.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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This patch removes the potential problem of extcon_register_notifier()
when edev parameter is NULL. When edev is NULL, this function returns
the first extcon device which includes the sepecific external connector
of second paramter. But, it don't guarantee the same operation in all cases.
To remove this confusion and potential problem, this patch fixes it.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Add a MODULE_DEVICE_TABLE to fix the module not auto-loading.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Setting the irq_enable bits is taken care of by the irq chip when we
request the irqs and the driver should not be meddling with the
irq?_en registers itself.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The vbus-present bit in the power status register also gets set to 1
when a usb-host cable (id-pin shorted to ground) is plugged in and a 5v
boost converter is supplying 5v to the otg usb bus.
This causes a "disconnect or unknown or ID event" warning in dmesg as
well as the extcon device to report the last detected charger cable
type as being connected even though none is connected.
This commit switches to checking the vbus-valid bit instead, which is
only 1 when both vbus is present and the vbus-path is enabled in the
vbus-path control register (the vbus-path gets disabled when a usb-host
cable is detected, to avoid the pmic drawing power from the 5v boost
converter).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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When the charger type changes from e.g. SDP to CDP, without Vbus being
seen as low in between axp288_handle_chrg_det_event would set the state
for the new cable type to true, without clearing the state of the
previous cable type to false.
This commit fixes this and also gets rid of the function local static
cable variable, properly storing all drv state in the axp288_extcon_info
struct.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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axp288_handle_chrg_det_event only gets called on change interrupts
(so not that often), extcon_set_state_sync() checks itself if there are
any actual changes before notifying listeners, and gpiod_set_value is
not really expensive either.
So we can simply always do both on each interrupt removing a bunch of
somewhat magic looking code from axp288_handle_chrg_det_event.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The usb_phy based intel-usb-phy code never got merged into the
mainline kernel, so the devm_usb_get_phy() call will always fail,
blocking the driver from loading.
Since new drivers should use the generic-phy framework, not the
old-style usb_phy stuff, keeping this around is not useful.
Therefor this patch removes the usb_phy notification bits, which together
with the patch to remove the platform_data dependency, makes this driver
actually successfully probe on systems with an axp288 pmic.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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When the extcon_axp288 driver was originally merged, it was merged with
a dependency on some other driver providing platform data for it.
However such another driver was never merged, so the extcon_axp288 as
merged upstream has never worked, its probe method simply always returns
-ENODEV.
This commit drops the dependency on the pdata always being there, instead
it treats not having pdata as the pdata having a NULL gpio_mux_control,
something which the code was already prepared to handle.
Note that the code for controlling the mux_control gpio is left in place,
as this may be necessary to allow the axp288 pmic to properly detect the
charger type (instead of assuming 500mA max charge current) on some
tablets. This will make it easier for future patches to add support for
this gpio by getting the gpio info from somewhere.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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extcon-palmas must be child of palmas and expects parent's
drvdata to be valid. Check for non NULL parent drvdata and
fail if it is NULL. Not doing so will result in a NULL
pointer dereference later in the probe() parent drvdata
is NULL (e.g. misplaced extcon-palmas node in device tree).
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Aligning all block comments in extcon subsystem as per linux coding style.
Found using checkpatch.pl script.
Signed-off-by: Srikant Ritolia <s.ritolia@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Function get_zeroed_page() returns a NULL pointer if there is no enough
memory. In function extcon_sync(), it returns 0 if the call to
get_zeroed_page() fails. The return value 0 indicates success in the
context, which is incosistent with the execution status. This patch
fixes the bug by returning -ENOMEM.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188611
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Currently we handle both old style GPIO and new style GPIOD differently
simplify this slightly by converting the old style GPIO to a GPIOD and
just using that from then on.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"No dramatic changes are found in this development cycle, but as usual,
many commits are applied in a wide range of drivers.
Most of big changes are in ASoC, where a few bits of framework work
and quite a lot of cleanups and improvements to existing code have
been done. The rest are usual stuff, a few HD-audio and USB-audio
quirks and fixes, as well as the drop of kthread usages in the whole
subsystem.
Below are some highlights:
ASoC:
- support for stereo DAPM controls
- some initial work on the of-graph sound card
- regmap conversions of the remaining AC'97 drivers
- a new version of the topology ABI; this should be backward
compatible
- updates / cleanups of rsnd, sunxi, sti, nau8825, samsung, arizona,
Intel skylake, atom-sst
- new drivers for Cirrus Logic CS42L42, Qualcomm MSM8916-WCD, and
Realtek RT5665
USB-audio:
- yet another race fix at disconnection
- tolerated packet size calculation for some Android devices
- quirks for Axe-Fx II, QuickCam, TEAC 501/503
HD-audio:
- improvement of Dell pin fixup mapping
- quirks for HP Z1 Gen3, Alienware 15 R2 2016 and ALC622 headset mic
Misc:
- replace all kthread usages with simple works"
* tag 'sound-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (296 commits)
ALSA: hiface: Fix M2Tech hiFace driver sampling rate change
ALSA: usb-audio: Eliminate noise at the start of DSD playback.
ALSA: usb-audio: Add native DSD support for TEAC 501/503 DAC
ASoC: wm_adsp: wm_adsp_buf_alloc should use kfree in error path
ASoC: topology: avoid uninitialized kcontrol_type
ALSA: usb-audio: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks
ALSA: usb-audio: add implicit fb quirk for Axe-Fx II
ASoC: zte: spdif: correct ZX_SPDIF_CLK_RAT define
ASoC: zte: spdif and i2s drivers are not zx296702 specific
ASoC: rsnd: setup BRGCKR/BRRA/BRRB when starting
ASoC: rsnd: enable/disable ADG when suspend/resume timing
ASoC: rsnd: tidyup ssi->usrcnt counter check in hw_params
ALSA: cs46xx: add a new line
ASoC: Intel: update bxt_da7219_max98357a to support quad ch dmic capture
ASoC: nau8825: disable sinc filter for high THD of ADC
ALSA: usb-audio: more tolerant packetsize
ALSA: usb-audio: avoid setting of sample rate multiple times on bus
ASoC: cs35l34: Simplify the logic to set CS35L34_MCLK_CTL setting
ALSA: hda - Gate the mic jack on HP Z1 Gen3 AiO
ALSA: hda: when comparing pin configurations, ignore assoc in addition to seq
...
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'asoc/topic/extcon' and 'asoc/topic/fsl' into asoc-next
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The name of a codec pin can have an optional prefix string, which is
defined by the SoC machine driver. The snd_soc_dapm_x_pin functions
take the fully-specified name including the prefix and so the existing
code would fail to find the pin if the audio machine driver had added
a prefix.
Switch to using the snd_soc_component_x_pin equivalent functions that
take a specified SoC component and automatically add the name prefix to
the provided pin name.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Driver can now work with both ID and VBUS pins or either one of
them.
There can be the following 3 cases
1) Both ID and VBUS GPIOs are available:
ID = LOW -> USB_HOST active, USB inactive
ID = HIGH -> USB_HOST inactive, USB state is same as VBUS.
2) Only ID GPIO is available:
ID = LOW -> USB_HOST active, USB inactive
ID = HIGH -> USB_HOST inactive, USB active
3) Only VBUS GPIO is available:
VBUS = LOW -> USB_HOST inactive, USB inactive
VBUS = HIGH -> USB_HOST inactive, USB active
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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The driver was changed after submission to use the new style APIs
like extcon_set_state(). Unfortunately, that only sets the state,
and doesn't notify any consumers that the cable state has
changed. Use extcon_set_state_sync() here instead so that we
notify cable consumers of the state change. This fixes USB
host-device role switching on the db8074 platform.
Fixes: 38085c987f52 ("extcon: Add support for qcom SPMI PMIC USB id detection hardware")
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Conflicts:
drivers/extcon/extcon-adc-jack.c
drivers/extcon/extcon-arizona.c
drivers/extcon/extcon-gpio.c
include/linux/extcon.h
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