dt-bindings: mfd: LMU: Add the ramp up/down property

Document the ramp-up and ramp-down property in the binding.
Removing the "sec" from the property definition as seconds is
implied.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>

diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
index 86ca786..160eb0a 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/ti-lmu.txt
+++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
@@ -23,8 +23,14 @@ Required properties:
          0x36 for LM3633, LM3697
          0x63 for LM3695
 
-Optional property:
+Optional properties:
   - enable-gpios: A GPIO specifier for hardware enable pin.
+  - ramp-up-us: Current ramping from one brightness level to
+               the a higher brightness level.
+               Range from 2048 us - 117.44 s
+  - ramp-down-us: Current ramping from one brightness level to
+                 the a lower brightness level.
+                 Range from 2048 us - 117.44 s
 
 Required node:
   - backlight: All LMU devices have backlight child nodes.
@@ -90,7 +96,7 @@ lm3631@29 {
 
                lcd_bl {
                        led-sources = <0 1>;
-                       ramp-up-msec = <300>;
+                       ramp-up-us = <300000>;
                };
        };
 };
@@ -152,15 +158,15 @@ lm3633@36 {
                main {
                        label = "main_lcd";
                        led-sources = <1 2>;
-                       ramp-up-msec = <500>;
-                       ramp-down-msec = <500>;
+                       ramp-up-us = <500000>;
+                       ramp-down-us = <500000>;
                };
 
                front {
                        label = "front_lcd";
                        led-sources = <0>;
-                       ramp-up-msec = <1000>;
-                       ramp-down-msec = <0>;
+                       ramp-up-us = <1000000>;
+                       ramp-down-us = <0>;
                };
        };
 
@@ -212,8 +218,8 @@ lm3697@36 {
 
                lcd {
                        led-sources = <0 1 2>;
-                       ramp-up-msec = <200>;
-                       ramp-down-msec = <200>;
+                       ramp-up-us = <200000>;
+                       ramp-down-us = <200000>;
                };
        };