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path: root/drivers/extcon
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2020-12-11extcon: max77693: Fix modalias stringMarek Szyprowski1-1/+1
The platform device driver name is "max77693-muic", so advertise it properly in the modalias string. This fixes automated module loading when this driver is compiled as a module. Fixes: db1b9037424b ("extcon: MAX77693: Add extcon-max77693 driver to support Maxim MAX77693 MUIC device") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-12-11extcon: fsa9480: Support TI TSU6111 variantLinus Walleij1-0/+1
The Texas Instruments TSU6111 is compatible to the FSA880/FSA9480. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-12-11extcon: Add driver for TI TUSB320Michael Auchter3-0/+193
This patch adds an extcon driver for the TI TUSB320 USB Type-C device. This can be used to detect whether the port is configured as a downstream or upstream facing port. Signed-off-by: Michael Auchter <michael.auchter@ni.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-30extcon: axp288: Use module_platform_driver to simplify the codeLiu Shixin1-12/+1
module_platform_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-30extcon: ptn5150: Do not print error during probe if nothing is attachedKrzysztof Kozlowski1-1/+0
The commit 85256f611f66 ("extcon: ptn5150: Check current USB mode when probing") reused code for checking CC status register in the probe path to determine what is initially connected. However if nothing is connected, the CC status register will have 0x0 value and print an error message: ptn5150 1-003d: Unknown Port status : 0 This is not an error. Also any other unknown port status values are not really errors but unhandled cases. Fixes: 85256f611f66 ("extcon: ptn5150: Check current USB mode when probing") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Use defines for registersKrzysztof Kozlowski1-12/+10
The register addresses are not continuous, so use simple defines for them. This also makes it easier to find the address for register. No functional change. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: palmas: Simplify with dev_err_probe()Krzysztof Kozlowski1-12/+6
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and the error value gets printed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: max8997: Return error code of extcon_dev_allocate()Krzysztof Kozlowski1-1/+1
devm_extcon_dev_allocate() can fail of multiple reasons. The call returns proper error code on failure so pass it instead of fixed ENOMEM. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: max77843: Return error code of extcon_dev_allocate()Krzysztof Kozlowski1-1/+1
devm_extcon_dev_allocate() can fail of multiple reasons. The call returns proper error code on failure so pass it instead of fixed ENOMEM. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: max77693: Return error code of extcon_dev_allocate()Krzysztof Kozlowski1-1/+1
devm_extcon_dev_allocate() can fail of multiple reasons. The call returns proper error code on failure so pass it instead of fixed ENOMEM. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: max14577: Return error code of extcon_dev_allocate()Krzysztof Kozlowski1-1/+1
devm_extcon_dev_allocate() can fail of multiple reasons. The call returns proper error code on failure so pass it instead of fixed ENOMEM. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Set the VBUS and POLARITY property capabilityRamuthevar Vadivel Murugan1-0/+7
Set the capability value of property for VBUS and POLARITY. Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com> [cw00.choi: Replace the space with tab for the indentation] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Switch to GENMASK() and BIT() macrosRamuthevar Vadivel Murugan1-32/+11
Switch to GENMASK() and BIT() macros. Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Deduplicate parts of dev_err_probe()Andy Shevchenko1-9/+5
dev_err_probe() is designed to be used like return dev_err_probe(dev, ret, "Error message\n"); Hence no need to have a separate return statement. Besides that dev_err_probe() prints already returned error code, no need to repeat that either. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: Replace HTTP links with HTTPS onesAlexander A. Klimov2-2/+2
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Convert to .probe_newKrzysztof Kozlowski1-3/+2
The 'struct i2c_device_id' argument of probe function is not used, so convert the driver to simpler 'probe_new' interface. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Convert to module_i2c_driverKrzysztof Kozlowski1-6/+1
Use module_i2c_driver() to simplify driver init boilerplate. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Reduce the amount of logs on deferred probeKrzysztof Kozlowski1-5/+6
There is no point to print deferred probe (and its failures to get resources) as an error. In case of multiple probe tries this would pollute the dmesg. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Make 'vbus-gpios' optionalKrzysztof Kozlowski1-2/+8
The PTN5150 chip can be used in hardware designs with only reporting of USB Type-C connection, without the VBUS control. The driver however unconditionally expected 'vbus-gpios'. Since all uses of the VBUS GPIO descriptor are NULL safe, the code can accept missing GPIO and provide only extcon status reporting. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Check current USB mode when probingKrzysztof Kozlowski1-43/+49
When machine boots up, the USB could be already in OTG mode. In such case there will be no interrupt coming to ptn5150 device and driver will report default state of nothing connected. Detection of USB connection would happen on first unplug of the cable. Factor out code for checking current connection mode and call it right after probe so the existing USB mode will be properly reported. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Lower the noisiness of probeKrzysztof Kozlowski1-2/+2
The ptn5150 driver always prints device type on probe but as raw hex, without any translation to meaningful description. This is useful only for board bring up time so lower the verbosity to debug. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Simplify getting vbus-gpios with flagsKrzysztof Kozlowski1-6/+1
Instead of obtaining GPIO as input and configuring it right after to output-low, just use proper GPIOD_OUT_LOW flag. Code is smaller and simpler. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Use generic "interrupts" propertyKrzysztof Kozlowski1-15/+18
Interrupts do not have to be always GPIO based so instead of expecting "int-gpios" property and converting the GPIO to an interrupt, just accept any interrupt via generic "interrupts" property. Keep support for old "int-gpios" for backward compatibility. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-09-24extcon: ptn5150: Fix usage of atomic GPIO with sleeping GPIO chipsKrzysztof Kozlowski1-4/+4
The driver uses atomic version of gpiod_set_value() without any real reason. It is called in a workqueue under mutex so it could sleep there. Changing it to "can_sleep" flavor allows to use the driver with all GPIO chips. Fixes: 4ed754de2d66 ("extcon: Add support for ptn5150 extcon driver") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-05-29extcon: arizona: Fix runtime PM imbalance on errorDinghao Liu1-8/+9
When arizona_request_irq() returns an error code, a pairing runtime PM usage counter decrement is needed to keep the counter balanced. For error paths after this function, things are the same. Also, remove calls to pm_runtime_disable() when pm_runtime_enable() has not been executed. Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-05-29extcon: max14577: Add proper dt-compatible stringsMarek Szyprowski1-0/+10
Add device tree compatible strings and create proper modalias structures to let this driver load automatically if compiled as module, because max14577 MFD driver creates MFD cells with such compatible strings. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-05-29extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'Christophe JAILLET1-2/+1
In some error handling paths, a call to 'iio_channel_get()' is not balanced by a corresponding call to 'iio_channel_release()'. This can be achieved easily by using the devm_ variant of 'iio_channel_get()'. This has the extra benefit to simplify the remove function. Fixes: 19939860dcae ("extcon: adc_jack: adc-jack driver to support 3.5 pi or simliar devices") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-05-29extcon: remove redundant assignment to variable idxColin Ian King1-1/+1
The variable idx is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-04-03Merge tag 'char-misc-5.7-rc1' of ↵Linus Torvalds3-2/+39
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char/misc/other driver patches for 5.7-rc1. Lots of things in here, and it's later than expected due to some reverts to resolve some reported issues. All is now clean with no reported problems in linux-next. Included in here is: - interconnect updates - mei driver updates - uio updates - nvmem driver updates - soundwire updates - binderfs updates - coresight updates - habanalabs updates - mhi new bus type and core - extcon driver updates - some Kconfig cleanups - other small misc driver cleanups and updates As mentioned, all have been in linux-next for a while, and with the last two reverts, all is calm and good" * tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (174 commits) Revert "driver core: platform: Initialize dma_parms for platform devices" Revert "amba: Initialize dma_parms for amba devices" amba: Initialize dma_parms for amba devices driver core: platform: Initialize dma_parms for platform devices bus: mhi: core: Drop the references to mhi_dev in mhi_destroy_device() bus: mhi: core: Initialize bhie field in mhi_cntrl for RDDM capture bus: mhi: core: Add support for reading MHI info from device misc: rtsx: set correct pcr_ops for rts522A speakup: misc: Use dynamic minor numbers for speakup devices mei: me: add cedar fork device ids coresight: do not use the BIT() macro in the UAPI header Documentation: provide IBM contacts for embargoed hardware nvmem: core: remove nvmem_sysfs_get_groups() nvmem: core: use is_bin_visible for permissions nvmem: core: use device_register and device_unregister nvmem: core: add root_only member to nvmem device struct extcon: axp288: Add wakeup support extcon: Mark extcon_get_edev_name() function as exported symbol extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFER dt-bindings: extcon: usbc-cros-ec: convert extcon-usbc-cros-ec.txt to yaml format ...
2020-03-25extcon: axp288: Add wakeup supportHans de Goede1-0/+32
On devices with an AXP288, we need to wakeup from suspend when a charger is plugged in, so that we can do charger-type detection and so that the axp288-charger driver, which listens for our extcon events, can configure the input-current-limit accordingly. Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-03-25extcon: Mark extcon_get_edev_name() function as exported symbolMayank Rana1-0/+1
extcon_get_edev_name() function provides client driver to request extcon dev's name. If extcon driver and client driver are compiled as loadable modules, extcon_get_edev_name() function symbol is not visible to client driver. Hence mark extcon_find_edev_name() function as exported symbol. Signed-off-by: Mayank Rana <mrana@codeaurora.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-03-25extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFERH. Nikolaus Schaller1-2/+6
If the gpios are probed after this driver (e.g. if they come from an i2c expander) there is no need to print an error message. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-03-24extcon: axp288: Convert to new X86 CPU match macrosThomas Gleixner1-1/+1
The new macro set has a consistent namespace and uses C99 initializers instead of the grufty C89 ones. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lkml.kernel.org/r/20200320131510.075227793@linutronix.de
2019-12-16extcon: sm5502: Remove unneeded semicolonXu Wang1-5/+5
Remove unneeded semicolon reported by coccinelle. Signed-off-by: Xu Wang <vulab@iscas.ac.cn> [cw00.choi: Edit patch title and description] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Factor out microphone and button detectionCharles Keepax1-44/+71
Continue refactoring the microphone detect handling by factoring out the handling for microphone detection and button detection into separate functions. This both makes the code a little clearer and prepares for some planned future refactoring to make the state handling in the driver more explicit. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Factor out microphone impedance into a functionCharles Keepax1-52/+73
The microphone detection handler is very long, start breaking it up by factoring out the actual reading of the impedance value into a separate functions. Additionally, this also fixes a minor bug and ensures that the microphone timeout will be rescheduled in all error cases. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Invert logic of check in arizona_hpdet_do_idCharles Keepax1-47/+45
Invert the check of hpdet_acc_id at the top of arizona_hpdet_do_id to reduce the identation within the function. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Remove excessive WARN_ONCharles Keepax1-3/+2
A WARN_ON is very strong for simply finding a button that is out of range, downgrade this to a simple error message in the log. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Remove unnecessary sets of ACCDET_MODECharles Keepax1-11/+0
arizona_start_mic sets ACCDET_MODE as required for the microphone detection as such it is redundant to set this outside of this function. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Tidy up transition from mic to headphone detectCharles Keepax1-8/+1
Moving from microphone detection to headphone detection is done fairly haphazardly at the moment, sometimes calling arizona_stop_mic at the call site sometimes relying on a call inside arizona_identify_headphone. Simplify all this and always call arizona_stop_mic at the top of arizona_identify_headphone. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Clear jack status regardless of detection typeCharles Keepax1-4/+4
It makes sense to clear the internal state of the jack detection regardless of if the headphone detect based accessory detection or the normal microphone detect based flow is used. No issues are currently known because of this but the change makes more logical sense and eases future refactoring of the code. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Move pdata extraction to probeCharles Keepax1-9/+5
It makes no sense to be extracting values from pdata for the first time in the jack detection handler function, move this to probe time where it belongs. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Make rev A register sequences atomicCharles Keepax1-6/+14
The special register sequences that are applied for rev A of wm5102 should be applied atomically with respect to any other register writes. Use regmap_multi_reg_write to ensure all writes happen under the regmap lock. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-12-09extcon: arizona: Correct clean up if arizona_identify_headphone failsCharles Keepax1-0/+3
In the error path of arizona_identify_headphone, neither the clamp nor the PM runtime are cleaned up. Add calls to clean up both of these. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-11-27Merge tag 'char-misc-5.5-rc1' of ↵Linus Torvalds3-3/+21
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char/misc and other driver patches for 5.5-rc1 Loads of different things in here, this feels like the catch-all of driver subsystems these days. Full details are in the shortlog, but nothing major overall, just lots of driver updates and additions. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (198 commits) char: Fix Kconfig indentation, continued habanalabs: add more protection of device during reset habanalabs: flush EQ workers in hard reset habanalabs: make the reset code more consistent habanalabs: expose reset counters via existing INFO IOCTL habanalabs: make code more concise habanalabs: use defines for F/W files habanalabs: remove prints on successful device initialization habanalabs: remove unnecessary checks habanalabs: invalidate MMU cache only once habanalabs: skip VA block list update in reset flow habanalabs: optimize MMU unmap habanalabs: prevent read/write from/to the device during hard reset habanalabs: split MMU properties to PCI/DRAM habanalabs: re-factor MMU masks and documentation habanalabs: type specific MMU cache invalidation habanalabs: re-factor memory module code habanalabs: export uapi defines to user-space habanalabs: don't print error when queues are full habanalabs: increase max jobs number to 512 ...
2019-11-04extcon: axp288: Remove the build-in connection descriptionHeikki Krogerus1-15/+23
Getting handle to the USB role switch by first finding its software fwnode. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20191008122600.22340-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-31extcon: sm5502: remove redundant assignment to variable cable_typeColin Ian King1-1/+1
The variable cable_type is being initialized with a value that is never read and is being re-assigned a little later on. The assignment is redundant and hence can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-10-11extcon: sm5502: Reset registers during initializationStephan Gerhold2-0/+6
On some devices (e.g. Samsung Galaxy A5 (2015)), the bootloader seems to keep interrupts enabled for SM5502 when booting Linux. Changing the cable state (i.e. plugging in a cable) - until the driver is loaded - will therefore produce an interrupt that is never read. In this situation, the cable state will be stuck forever on the initial state because SM5502 stops sending interrupts. This can be avoided by clearing those pending interrupts after the driver has been loaded. One way to do this is to reset all registers to default state by writing to SM5502_REG_RESET. This ensures that we start from a clean state, with all interrupts disabled. Suggested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-10-01extcon-intel-cht-wc: Don't reset USB data connection at probeYauhen Kharuzhy1-2/+14
Intel Cherry Trail Whiskey Cove extcon driver connect USB data lines to PMIC at driver probing for further charger detection. This causes reset of USB data sessions and removing all devices from bus. If system was booted from Live CD or USB dongle, this makes system unusable. Check if USB ID pin is floating and re-route data lines in this case only, don't touch otherwise. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com> [cw00.choi: Clean-up the minor coding style] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2019-09-19Merge tag 'tag-chrome-platform-for-v5.4' of ↵Linus Torvalds2-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform updates from Benson Leung: "CrOS EC / MFD Migration: - Move cros_ec core driver from mfd into chrome platform. Wilco EC: - Add batt_ppid_info command to Wilco telemetry driver. CrOS EC: - cros_ec_rpmsg : Add support to inform EC of suspend/resume status - cros_ec_rpmsg : Fix race condition on probe failed - cros_ec_chardev : Add a poll handler to receive MKBP events Misc: - bugfixes in cros_usbpd_logger and cros_ec_ishtp" * tag 'tag-chrome-platform-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: cros_usbpd_logger: null check create_singlethread_workqueue platform/chrome: cros_ec_chardev: Add a poll handler to receive MKBP events platform/chrome: cros_ec_rpmsg: Fix race with host command when probe failed platform/chrome: chromeos_tbmc: Report wake events mfd: cros_ec: Use mfd_add_hotplug_devices() helper mfd: cros_ec: Add convenience struct to define autodetectable CrOS EC subdevices mfd: cros_ec: Add convenience struct to define dedicated CrOS EC MCUs mfd: cros_ec: Use kzalloc and cros_ec_cmd_xfer_status helper mfd / platform: cros_ec: Reorganize platform and mfd includes mfd / platform: cros_ec: Rename config to a better name mfd: cros_ec: Switch to use the new cros-ec-chardev driver mfd / platform: cros_ec: Miscellaneous character device to talk with the EC mfd / platform: cros_ec: Move cros-ec core driver out from MFD mfd / platform: cros_ec: Handle chained ECs as platform devices platform/chrome: cros_ec_rpmsg: Add host command AP sleep state support platform/chrome: chromeos_laptop: drop checks of NULL-safe functions platform/chrome: wilco_ec: Add batt_ppid_info command to telemetry driver
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 23:17:01 +0000