linux-toradex.git/Documentation/devicetree/bindings/extcon, branch v4.10

extcon: usb-gpio: Add VBUS detection support

2016-11-20T12:22:39+00:00

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 
Reviewed-by: Peter Chen 
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: arizona: Update binding docs to mention new defines for GPSW

2016-06-21T05:09:54+00:00

Update the binding documentation to mention the defines added for the
possible values of wlf,gpsw.

Signed-off-by: Charles Keepax 
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: arizona: Add DT binding examples

2015-12-15T00:57:52+00:00

Add an example for all elements of the Arizona extcon device tree
binding.

Signed-off-by: Charles Keepax 
Signed-off-by: Chanwoo Choi

extcon: arizona: Update device tree binding for mic detect configurations

2015-12-15T00:57:37+00:00

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 
Acked-by: Rob Herring 
Signed-off-by: Chanwoo Choi

extcon: arizona: Update naming for micd-timeout DT to include units

2015-11-24T00:00:27+00:00

Add time units of -ms (milliseconds) to wlf,micd-timeout.

Signed-off-by: Charles Keepax 
Signed-off-by: Chanwoo Choi

extcon: arizona: Update naming for second jack detection DT binding

2015-11-23T23:59:11+00:00

Update the name for the second jack detection pin binding to be a little
less confusing.

Signed-off-by: Charles Keepax 
Acked-by: Rob Herring 
Signed-off-by: Chanwoo Choi

extcon: arizona: Update DT binding documentation for jack detection

2015-11-20T01:14:24+00:00

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 
Reviewed-by: Chanwoo Choi 
Signed-off-by: Chanwoo Choi

extcon: arizona: Update DT binding documentation for mic detection

2015-11-20T01:14:24+00:00

Add additional bindings to allow configuration of the system specific
microphone detection settings.

Signed-off-by: Charles Keepax 
Signed-off-by: Chanwoo Choi