[PATCH resend 2/5] input: touchscreen: Add LED trigger support to the softbutton code
From: robh@kernel.org (Rob Herring)
Date: 2016-09-20 14:40:23
Also in:
linux-devicetree, linux-input
Possibly related (same subject, not in this thread)
- 2016-09-11 · [PATCH resend 2/5] input: touchscreen: Add LED trigger support to the softbutton code · Hans de Goede <hidden>
On Sun, Sep 11, 2016 at 08:44:05PM +0200, Hans de Goede wrote:
quoted hunk
In some hardware there are 1 or more LEDs behind the touchscreen softbuttons, which are intended to provide visual feedback to the user that the softbutton has been pressed, this commit adds support for this. Signed-off-by: Hans de Goede <redacted> --- .../bindings/input/touchscreen/softbuttons.txt | 4 ++ drivers/input/touchscreen/softbuttons.c | 49 +++++++++++++++++++++- 2 files changed, 52 insertions(+), 1 deletion(-)diff --git a/Documentation/devicetree/bindings/input/touchscreen/softbuttons.txt b/Documentation/devicetree/bindings/input/touchscreen/softbuttons.txt index 3eb6f4c..b425b95 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/softbuttons.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/softbuttons.txt@@ -17,6 +17,10 @@ Required subnode-properties: - softbutton-min-y : Y start of the area the softbutton area covers - softbutton-max-y : Y end of the area the softbutton area covers +Optional subnode-properties: +- linux,led-trigger : String for a LED trigger for providing visual + feedback that the softbutton has been pressed
This should just be a phandle to the LED if you want to describe the link. Or standardize the trigger naming (in the kernel) for buttons and just use the existing 'linux,default-trigger' in the LED node. Rob