dt-bindings: ti-lmu: Modify dt bindings for the LM3697

The LM3697 is a single function LED driver. The single function LED
driver needs to reside in the LED directory as a dedicated LED driver
and not as a MFD device.  The device does have common brightness and ramp
features and those can be accomodated by a TI LMU framework.

The LM3697 dt binding needs to be moved from the ti-lmu.txt and a dedicated
LED dt binding needs to be added.  The new LM3697 LED dt binding will then
reside in the Documentation/devicetree/bindings/leds directory and follow the
current LED and general bindings guidelines.

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/leds/leds-lm3697.txt b/Documentation/devicetree/bindings/leds/leds-lm3697.txt
new file mode 100644 (file)
index 0000000..63992d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lm3697.txt
@@ -0,0 +1,73 @@
+* Texas Instruments - LM3697 Highly Efficient White LED Driver
+
+The LM3697 11-bit LED driver provides high-
+performance backlight dimming for 1, 2, or 3 series
+LED strings while delivering up to 90% efficiency.
+
+This device is suitable for display and keypad lighting
+
+Required properties:
+       - compatible:
+               "ti,lm3697"
+       - reg :  I2C slave address
+       - #address-cells : 1
+       - #size-cells : 0
+
+Optional properties:
+       - enable-gpios : GPIO pin to enable/disable the device
+       - vled-supply : LED supply
+
+Required child properties:
+       - reg : 0 - LED is Controlled by bank A
+               1 - LED is Controlled by bank B
+       - led-sources : Indicates which HVLED string is associated to which
+                       control bank.  This is a zero based property so
+                       HVLED1 = 0, HVLED2 = 1, HVLED3 = 2.
+                       Additional information is contained
+                       in Documentation/devicetree/bindings/leds/common.txt
+
+Optional child properties:
+       - ti,brightness-resolution - see Documentation/devicetree/bindings/mfd/ti-lmu.txt
+       - ramp-up-us: see Documentation/devicetree/bindings/mfd/ti-lmu.txt
+       - ramp-down-us: see Documentation/devicetree/bindings/mfd/ti-lmu.txt
+       - label : see Documentation/devicetree/bindings/leds/common.txt
+       - linux,default-trigger :
+          see Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+
+HVLED string 1 and 3 are controlled by control bank A and HVLED 2 string is
+controlled by control bank B.
+
+led-controller@36 {
+       compatible = "ti,lm3697";
+       #address-cells = <1>;
+       #size-cells = <0>;
+       reg = <0x36>;
+
+       enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+       vled-supply = <&vbatt>;
+
+       led@0 {
+               reg = <0>;
+               led-sources = <0 2>;
+               ti,brightness-resolution = <2047>;
+               ramp-up-us = <5000>;
+               ramp-down-us = <1000>;
+               label = "white:first_backlight_cluster";
+               linux,default-trigger = "backlight";
+       };
+
+       led@1 {
+               reg = <1>;
+               led-sources = <1>;
+               ti,brightness-resolution = <255>;
+               ramp-up-us = <500>;
+               ramp-down-us = <1000>;
+               label = "white:second_backlight_cluster";
+               linux,default-trigger = "backlight";
+       };
+}
+
+For more product information please see the link below:
+http://www.ti.com/lit/ds/symlink/lm3697.pdf

diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
index e3efefb194c5097ee95e87a9792933bd57e94bde..782d3c9812ede95e1c70837322a494b4066e97b5 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/ti-lmu.txt
+++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
@@ -8,7 +8,6 @@ TI LMU driver supports lighting devices below.
   LM3632       Backlight and regulator
   LM3633       Backlight, LED and fault monitor
   LM3695       Backlight
-  LM3697       Backlight and fault monitor
 
 Required properties:
   - compatible: Should be one of:
@@ -16,11 +15,10 @@ Required properties:
                 "ti,lm3632"
                 "ti,lm3633"
                 "ti,lm3695"
-                "ti,lm3697"
   - reg: I2C slave address.
          0x11 for LM3632
          0x29 for LM3631
-         0x36 for LM3633, LM3697
+         0x36 for LM3633
          0x63 for LM3695
 
 Optional properties:
@@ -51,7 +49,6 @@ Optional nodes:
     Required properties:
       - compatible: Should be one of:
                     "ti,lm3633-fault-monitor"
-                    "ti,lm3697-fault-monitor"
   - leds: LED properties for LM3633. Please refer to [2].
   - regulators: Regulator properties for LM3631 and LM3632.
                 Please refer to [3].
@@ -216,25 +213,3 @@ lm3695@63 {
                };
        };
 };
-
-lm3697@36 {
-       compatible = "ti,lm3697";
-       reg = <0x36>;
-
-       enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
-
-       backlight {
-               compatible = "ti,lm3697-backlight";
-
-               lcd {
-                       ti,brightness-resolution = <255>;
-                       led-sources = <0 1 2>;
-                       ramp-up-us = <200000>;
-                       ramp-down-us = <200000>;
-               };
-       };
-
-       fault-monitor {
-               compatible = "ti,lm3697-fault-monitor";
-       };
-};