kernel/linux.git/drivers/extcon/Kconfig, branch linux-4.20.y

extcon: axp288: Set USB role where necessary

2018-03-22T12:49:28+00:00

The AXP288 BC1.2 charger detection / extcon code may seem like a strange place to add code to control the USB role-switch on devices with an AXP288, but there are 2 reasons to do this inside the axp288 extcon code: 1) On many devices the USB role is controlled by ACPI AML code, but the AML code only switches between the host and none roles, because of Windows not really using device mode. To make device mode work we need to toggle between the none/device roles based on Vbus presence, and the axp288 extcon gets interrupts on Vbus insertion / removal. 2) In order for our BC1.2 charger detection to work properly the role mux must be properly set to device mode before we do the detection. Also note the Kconfig help-text / obsolete depends on USB_PHY which are remnants from older never upstreamed code also controlling the mux from the axp288 extcon code. This commit also adds code to get notifications from the INT3496 extcon device, which is used on some devices to notify the kernel about id-pin changes instead of them being handled through AML code. This fixes: -Device mode not working on most CHT devices with an AXP288 -Host mode not working on devices with an INT3496 ACPI device -Charger-type misdetection (always SDP) on devices with an INT3496 when the USB role (always) gets initialized as host Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Signed-off-by: Heikki Krogerus Signed-off-by: Greg Kroah-Hartman

extcon: cros-ec: Add extcon-cros-ec driver to support display out

2017-07-17T10:25:49+00:00

This is the driver for the USB Type C cable detection mechanism built into the ChromeOS Embedded Controller on systems that have USB Type-C ports. At present, this allows for the presence of display out, but in future, it may also be used to notify host and device type cables and the presence of power. Signed-off-by: Benson Leung Signed-off-by: Enric Balletbo i Serra Acked-by: Chanwoo Choi Acked-by: Lee Jones Signed-off-by: Chanwoo Choi

extcon: qcom-spmi-misc: add dependency on ARCH_QCOM

2017-05-23T09:35:42+00:00

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 Signed-off-by: Chanwoo Choi

extcon: intel-cht-wc: Add Intel Cherry Trail Whiskey Cove PMIC extcon driver

2017-04-06T01:55:23+00:00

Add a driver for charger detection / control on the Intel Cherrytrail Whiskey Cove PMIC. Signed-off-by: Hans de Goede Signed-off-by: Chanwoo Choi

extcon: int3496: Add dependency on X86 as it's Intel specific

2017-03-22T09:29:46+00:00

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 Signed-off-by: Chanwoo Choi

extcon: int3496: Add Intel INT3496 ACPI device extcon driver

2017-01-09T01:04:11+00:00

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 [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 Signed-off-by: Chanwoo Choi

extcon: Add support for qcom SPMI PMIC USB id detection hardware

2016-09-13T02:26:26+00:00

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 Signed-off-by: Stephen Boyd [cw00.choi: Edited the driver description and added the author information] Signed-off-by: Chanwoo Choi

extcon: add Maxim MAX3355 driver

2015-12-21T02:44:00+00:00

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 Acked-by: Chanwoo Choi Acked-by: Rob Herring [cw00.choi: Add the GPIOLIB dependency] Signed-off-by: Chanwoo Choi

extcon: Allow compile test of GPIO consumers if !GPIOLIB

2015-05-19T07:39:06+00:00

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer functionality only, can still be compiled if GPIOLIB is not enabled. Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where appropriate. If GPIOLIB=n and asm-generic/gpio.h is not used: drivers/extcon/extcon-usb-gpio.c: In function ‘usb_extcon_detect_cable’: drivers/extcon/extcon-usb-gpio.c:63: error: implicit declaration of function ‘gpiod_get_value_cansleep’ drivers/extcon/extcon-usb-gpio.c: In function ‘usb_extcon_probe’: drivers/extcon/extcon-usb-gpio.c:116: error: implicit declaration of function ‘devm_gpiod_get’ drivers/extcon/extcon-usb-gpio.c:116: warning: assignment makes pointer from integer without a cast drivers/extcon/extcon-usb-gpio.c:122: error: implicit declaration of function ‘gpiod_set_debounce’ drivers/extcon/extcon-usb-gpio.c:129: error: implicit declaration of function ‘gpiod_to_irq’ Add the missing #include to fix this. Signed-off-by: Geert Uytterhoeven Signed-off-by: Chanwoo Choi

extcon: axp288: Add axp288 extcon driver support

2015-05-19T07:39:04+00:00

This patch adds the extcon support for AXP288 PMIC which has the BC1.2 charger detection capability. Additionally it also adds the USB mux switching support b/w SOC and PMIC based on GPIO control. Signed-off-by: Ramakrishna Pallala Acked-by: Lee Jones [cw00.choi: Modify the log message to keep the consistent log message pattern] Signed-off-by: Chanwoo Choi