summaryrefslogtreecommitdiff
path: root/Documentation
diff options
context:
space:
mode:
authorRoger Quadros <rogerq@ti.com>2015-08-03 17:40:51 +0300
committerChanwoo Choi <cw00.choi@samsung.com>2015-08-10 15:26:25 +0300
commit92b7cb5dc885b38b21093eefed8028b615952965 (patch)
treede56922baf3fee8dd9ec7c7f9a43599de61c07f0 /Documentation
parenta598af7f0279195abffbfb9bf2070457e9c89ff3 (diff)
downloadlinux-92b7cb5dc885b38b21093eefed8028b615952965.tar.xz
extcon: palmas: Support GPIO based USB ID detection
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/extcon/extcon-palmas.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/extcon/extcon-palmas.txt b/Documentation/devicetree/bindings/extcon/extcon-palmas.txt
index 45414bbcd945..f61d5af44a27 100644
--- a/Documentation/devicetree/bindings/extcon/extcon-palmas.txt
+++ b/Documentation/devicetree/bindings/extcon/extcon-palmas.txt
@@ -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";