On Mon, Jun 15, 2015 at 1:15 AM, Jacek Anaszewski
[off-list ref] wrote:

Hi Matt,

On 06/13/2015 06:17 AM, Matt Ranostay wrote:

quoted

Some cap11xx devices have LEDs that can be controlled from userpace
and via triggers. Document their use and functionality here.

Signed-off-by: Matt Ranostay <redacted>
---
  .../devicetree/bindings/input/cap11xx.txt          | 23
++++++++++++++++++++++
  1 file changed, 23 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/cap11xx.txt

b/Documentation/devicetree/bindings/input/cap11xx.txt
index 7d0a300..ef89c27 100644

--- a/Documentation/devicetree/bindings/input/cap11xx.txt
+++ b/Documentation/devicetree/bindings/input/cap11xx.txt

@@ -38,6 +38,11 @@ Optional properties:
                                defaults. The array must have exactly six
                                entries.

+       linux,led-brightness:   Defines the ON brightness when the

optional LED
+                               functionality is used. Valid values are
0-15.
+                               By default a value of 15 is set.

The ON brightness is controlled with the 'brightness' sysfs property.
The levels start from 1 and 0 turns the LED off. I think that this
property is useless then.

Yes but this defines the brightness for the ON state.. since it can be
from 0-100% duty cycle.

quoted

+
  Example:

  i2c_controller {

@@ -55,5 +60,23 @@ i2c_controller {
                                 <105>,         /* KEY_LEFT */
                                 <109>,         /* KEY_PAGEDOWN */
                                 <104>;         /* KEY_PAGEUP */
+
+               linux,led-brightness = <15>;
+
+               usr@0 {
+                       label = "cap11xx:green:usr0";
+                       reg = <0>;
+               };
+
+               usr@1 {
+                       label = "cap11xx:green:usr1";
+                       reg = <1>;
+               };
+
+               alive@2 {
+                       label = "cap11xx:green:alive";
+                       reg = <2>;
+                       linux,default_trigger = "heartbeat";
+               };
        };
  }

--
Best Regards,
Jacek Anaszewski

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