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extcon: palmas: Support GPIO based USB ID detection

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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>
This commit is contained in:
Roger Quadros
2015-08-03 17:40:51 +03:00
committed by Chanwoo Choi
parent a598af7f02
commit 92b7cb5dc8
4 changed files with 126 additions and 16 deletions
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5
Documentation/devicetree/bindings/extcon/extcon-palmas.txt
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@@ -10,8 +10,11 @@ Required Properties:
Optional Properties:
- ti,wakeup : To enable the wakeup comparator in probe
- ti,enable-id-detection: Perform ID detection.
- ti,enable-id-detection: Perform ID detection. If id-gpio is specified
it performs id-detection using GPIO else using OTG core.
- ti,enable-vbus-detection: Perform VBUS detection.
- id-gpio: gpio for GPIO ID detection. See gpio binding.
- debounce-delay-ms: debounce delay for GPIO ID pin in milliseconds.
palmas-usb {
compatible = "ti,twl6035-usb", "ti,palmas-usb";