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Date: Tue, 23 Oct 2018 12:06:21 -0500
From: Dan Murphy <dmurphy@...com>
To: <robh+dt@...nel.org>, <jacek.anaszewski@...il.com>, <pavel@....cz>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-leds@...r.kernel.org>, <lee.jones@...aro.org>,
<tony@...mide.com>, Dan Murphy <dmurphy@...com>
Subject: [PATCH v4 5/7] dt-bindings: ti-lmu: Modify dt bindings for the LM3633
The LM3633 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 LM3633 dt binding needs to be moved from the ti-lmu.txt and a dedicated
LED dt binding needs to be added. The new LM3633 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@...com>
---
v4 - Squashed removal and addition of the dt bindings into a single patch - https://lore.kernel.org/patchwork/patch/998703/
.../devicetree/bindings/leds/leds-lm3633.txt | 102 ++++++++++++++++++
.../devicetree/bindings/mfd/ti-lmu.txt | 48 ---------
2 files changed, 102 insertions(+), 48 deletions(-)
create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3633.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3633.txt b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
new file mode 100644
index 000000000000..d791b891ea6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
@@ -0,0 +1,102 @@
+* Texas Instruments - LM3633 Lighting Power Solution for Smartphone Handsets
+
+The LM3633 is a complete power source for
+backlight, keypad, and indicator LEDs in smartphone
+handsets.
+
+This device is suitable for display and keypad Lighting
+
+Required properties:
+ - compatible:
+ "ti,lm3633"
+ - 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 - HVLED is Controlled by bank A
+ 1 - HVLED is Controlled by bank B
+ 2,3,4 - LVLED1, 2 and 3 are Controlled by bank C, D and E
+ 5,6,7 - LVLED4, 5 and 6 are Controlled by bank F, G and H
+ - led-sources : Indicates which LED string is associated to which
+ control bank.
+ 0 - LED is not active in this control bank
+ 1 - LED string is controlled by this control bank
+
+Optional child properties:
+ - runtime-ramp-up-msec: Current ramping from one brightness level to
+ the a higher brightness level.
+ Range from 2048 us - 117.44 s
+ - runtime-ramp-down-msec: Current ramping from one brightness level to
+ the a lower brightness level.
+ Range from 2048 us - 117.44 s
+ - label : see Documentation/devicetree/bindings/leds/common.txt
+ - linux,default-trigger :
+ see Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+Control bank C output to 3 LVLEDs and Control F, G and H have independent
+controls of the LVLEDs.
+
+led-controller@36 {
+ compatible = "ti,lm3633";
+ reg = <0x36>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ led@0 {
+ reg = <0>;
+ led-sources = < 1 0 1 >;
+ label = "white:backlight";
+ ramp-up-ms = <100000>;
+ ramp-down-ms = <1000>;
+ linux,default-trigger = "backlight";
+ };
+
+ led@1 {
+ reg = <1>;
+ led-sources = < 0 1 0 >;
+ label = "white:light";
+ ramp-up-ms = <100000>;
+ ramp-down-ms = <1000>;
+ };
+
+ led@2 {
+ reg = <2>;
+ led-sources = <1>;
+ ramp-up-ms = <100000>;
+ ramp-down-ms = <1000>;
+ label = "white:indicator1";
+ };
+
+ led@5 {
+ reg = <5>;
+ led-sources = <1>;
+ ramp-up-ms = <100000>;
+ ramp-down-ms = <1000>;
+ label = "red:light";
+ };
+
+ led@6 {
+ reg = <6>;
+ led-sources = <1>;
+ ramp-up-ms = <41940>;
+ ramp-down-ms = <1000>;
+ label = "green:light";
+ };
+
+ led@7 {
+ reg = <7>;
+ led-sources = <1>;
+ ramp-up-ms = <100000>;
+ ramp-down-ms = <1000>;
+ label = "blue:light";
+ };
+};
+For more product information please see the link below:
+http://www.ti.com/lit/ds/symlink/lm3633.pdf
diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
index 920f910be4e9..573e88578d3d 100644
--- a/Documentation/devicetree/bindings/mfd/ti-lmu.txt
+++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
@@ -7,7 +7,6 @@ TI LMU driver supports lighting devices below.
LM3532 Backlight
LM3631 Backlight and regulator
LM3632 Backlight and regulator
- LM3633 Backlight, LED and fault monitor
LM3695 Backlight
Required properties:
@@ -15,12 +14,10 @@ Required properties:
"ti,lm3532"
"ti,lm3631"
"ti,lm3632"
- "ti,lm3633"
"ti,lm3695"
- reg: I2C slave address.
0x11 for LM3632
0x29 for LM3631
- 0x36 for LM3633
0x38 for LM3532
0x63 for LM3695
@@ -157,51 +154,6 @@ lm3632@11 {
};
};
-lm3633@36 {
- compatible = "ti,lm3633";
- reg = <0x36>;
-
- enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
-
- backlight {
- compatible = "ti,lm3633-backlight";
-
- main {
- label = "main_lcd";
- led-sources = <1 2>;
- ramp-up-msec = <500>;
- ramp-down-msec = <500>;
- };
-
- front {
- label = "front_lcd";
- led-sources = <0>;
- ramp-up-msec = <1000>;
- ramp-down-msec = <0>;
- };
- };
-
- leds {
- compatible = "ti,lm3633-leds";
-
- chan1 {
- label = "status";
- led-sources = <1>;
- led-max-microamp = <6000>;
- };
-
- chan345 {
- label = "rgb";
- led-sources = <3 4 5>;
- led-max-microamp = <10000>;
- };
- };
-
- fault-monitor {
- compatible = "ti,lm3633-fault-monitor";
- };
-};
-
lm3695@63 {
compatible = "ti,lm3695";
reg = <0x63>;
--
2.19.0
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