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* dt-bindings: extcon: Add support for fsa9480 switchTomasz Figa2019-06-221-0/+19
| | | | | | | | | | | | This patch adds documentation for binding of extcont Fairchild Semiconductor FSA9480 microusb switch. This usb port accessory detector and switch, can be found for example in some Samsung s5pv210 based phones. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Add support for ptn5150 extcon driverVijai Kumar K2019-02-111-0/+27
| | | | | | | | | | 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>
* dt-bindings: remove 'interrupt-parent' from bindingsRob Herring2018-07-252-4/+0
| | | | | | | | | | | | 'interrupt-parent' is often documented as part of define bindings, but it is really outside the scope of a device binding. It's never required in a given node as it is often inherited from a parent node. Or it can be implicit if a parent node is an 'interrupt-controller' node. So remove it from all the binding files. Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
* dt-bindings: extcon: Add support for cros-ec deviceBenson Leung2017-07-171-0/+24
| | | | | | | | | | | | | This patch add documentation for binding of USB Type C cable detection mechanism is using EXTCON subsystem. The device can detect the presence of display out but it may also detect other external accessories when external accessories is attached or detached. Signed-off-by: Benson Leung <bleung@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: usb-gpio: Add VBUS detection supportRoger Quadros2016-11-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* extcon: Add support for qcom SPMI PMIC USB id detection hardwareStephen Boyd2016-09-131-0/+41
| | | | | | | | | | | | | Some Qualcomm PMICs have a misc device that performs USB id pin detection via an interrupt. When the interrupt triggers, we should read the interrupt line to see if it has gone high or low. If the interrupt is low then the ID pin is grounded, and if the interrupt is high then the ID pin is being held high. Cc: Roger Quadros <rogerq@ti.com> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> [cw00.choi: Edited the driver description and added the author information] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Update binding docs to mention new defines for GPSWCharles Keepax2016-06-211-1/+2
| | | | | | | | Update the binding documentation to mention the defines added for the possible values of wlf,gpsw. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: add Maxim MAX3355 driverSergei Shtylyov2015-12-211-0/+21
| | | | | | | | | | | | | | | | | | | | | Maxim Integrated MAX3355E chip integrates a charge pump and comparators to enable a system with an integrated USB OTG dual-role transceiver to function as an USB OTG dual-role device. In addition to sensing/controlling Vbus, the chip also passes thru the ID signal from the USB OTG connector. On some Renesas boards, this signal is just fed into the SoC thru a GPIO pin -- there's no real OTG controller, only host and gadget USB controllers sharing the same USB bus; however, we'd like to allow host or gadget drivers to be loaded depending on the cable type, hence the need for the MAX3355 extcon driver. The Vbus status signals are also wired to GPIOs (however, we aren't currently interested in them), the OFFVBUS# signal is controlled by the host controllers, there's also the SHDN# signal wired to a GPIO, it should be driven high for the normal operation. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Rob Herring <robh@kernel.org> [cw00.choi: Add the GPIOLIB dependency] Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Add DT binding examplesCharles Keepax2015-12-151-0/+26
| | | | | | | | Add an example for all elements of the Arizona extcon device tree binding. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Update device tree binding for mic detect configurationsCharles Keepax2015-12-151-0/+8
| | | | | | | | | | Update the device tree binding documentation to include documentation for the wlf,micd-configs property that is used to specify the configurations for headset polarity detection (CTIA / OTMP). Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Update naming for micd-timeout DT to include unitsCharles Keepax2015-11-241-1/+1
| | | | | | | Add time units of -ms (milliseconds) to wlf,micd-timeout. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Update naming for second jack detection DT bindingCharles Keepax2015-11-241-2/+2
| | | | | | | | | Update the name for the second jack detection pin binding to be a little less confusing. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Update DT binding documentation for jack detectionCharles Keepax2015-11-201-0/+6
| | | | | | | | | | | Add additional bindings for both inverting the polarity of the jack detection pins and allowing the use of a second jack detection pin. Note that the second jack detection pin is hard wired in the chip so can only be enabled through the binding, rather than a pin being specified. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Update DT binding documentation for mic detectionCharles Keepax2015-11-201-0/+20
| | | | | | | | Add additional bindings to allow configuration of the system specific microphone detection settings. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: arizona: Add extcon specific device tree binding documentCharles Keepax2015-10-301-0/+15
| | | | | | | | | | | Subsystem specific bindings for the Arizona devices are being factored out of the MFD binding document into separate documents for each subsystem. This patch adds a binding document that covers the existing extcon specific bindings. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* extcon: palmas: Support GPIO based USB ID detectionRoger Quadros2015-08-101-1/+4
| | | | | | | | | | | | | Some palmas based chip variants do not have OTG based ID logic. For these variants we rely on GPIO based USB ID detection. These chips do have VBUS comparator for VBUS detection so we continue to use the old way of detecting VBUS. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: usb-gpio: Introduce gpio usb extcon driverRoger Quadros2015-02-241-0/+18
| | | | | | | | | | | | | | | | | | | | | 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>
* dt-bindings: extcon: Add support for Richtek RT8973A MUIC deviceChanwoo Choi2014-09-221-0/+25
| | | | | | | | | This patch add documentation for binding of Richtek RT8973A (Micro USB Switch) device which is using EXTCON subsystem. The RT8973A device can detect various external accessories when external accessories is attached or detached. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
* dt-bindings: extcon: Add support for SM5502 MUIC deviceChanwoo Choi2014-07-231-0/+23
| | | | | | | | | This patch add documentation for binding of SM5502 MUIC (Micro-USB Interface Controller) device which is using EXTCON subsystem. The SM5502 MUIC device can detect various external accessories when external accessories is attached or detached. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: palmas: Added a new compatible type *ti,palmas-usb-vid*Kishon Vijay Abraham I2014-01-071-1/+5
| | | | | | | | | The Palmas device contains only a USB VBUS-ID detector, so added a compatible type *ti,palmas-usb-vid*. Didn't remove the existing compatible types for backward compatibility. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: palmas: Option to disable ID/VBUS detection based on platformLaxman Dewangan2013-08-051-0/+2
| | | | | | | | | | | Based on system design, platform needs to detect the VBUS or ID or both. Provide option to select this through platform data to disable part of cable detection through palmas-usb. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Acked-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
* extcon: palmas: devicetree: remove non-require property detailsLaxman Dewangan2013-08-051-3/+1
| | | | | | | | | Extcon for palma driver does not need vbus supply and hence removing this from devicetree document/bindings. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
* extcon: palmas: rename device tree binding matching with file nameLaxman Dewangan2013-08-051-0/+0
| | | | | | | | | The driver name is extcon/extcon-palmas.c and hence renaming the device tree binding document to extcon-palmas.txt. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
* extcon: Palmas Extcon DriverGraeme Gregory2013-06-171-0/+15
This is the driver for the USB comparator built into the palmas chip. It handles the various USB OTG events that can be generated by cable insertion/removal. Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Ruchika Kharwar <ruchika@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: George Cherian <george.cherian@ti.com> [kishon@ti.com: adapted palmas usb driver to use the extcon framework] Signed-off-by: Sebastien Guiriec <s-guiriec@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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