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dt-bindings: mfd: Add lm36274 bindings to ti-lmu

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Add the LM36274 backlight driver with regulator support.
This is a multi-function device for backlight applications.

Backlight properties will be documented in it's a supplemental
bindings document.

Regulator support is documented in the regulator/lm363x-regulator.txt

http://www.ti.com/lit/ds/symlink/lm36274.pdf

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
This commit is contained in:
Dan Murphy 2019-06-05 07:56:30 -05:00 committed by Jacek Anaszewski
parent 5c1d824cda
commit 4665743276
1 changed files with 54 additions and 0 deletions
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54
Documentation/devicetree/bindings/mfd/ti-lmu.txt
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@ -8,6 +8,7 @@ TI LMU driver supports lighting devices below.
LM3632 Backlight and regulator
LM3633 Backlight, LED and fault monitor
LM3695 Backlight
LM36274 Backlight and regulator
Required properties:
- compatible: Should be one of:
@ -15,11 +16,13 @@ Required properties:
"ti,lm3632"
"ti,lm3633"
"ti,lm3695"
"ti,lm36274"
- reg: I2C slave address.
0x11 for LM3632
0x29 for LM3631
0x36 for LM3633
0x63 for LM3695
0x11 for LM36274
Optional properties:
- enable-gpios: A GPIO specifier for hardware enable pin.
@ -50,12 +53,14 @@ Optional nodes:
- compatible: Should be one of:
"ti,lm3633-fault-monitor"
- leds: LED properties for LM3633. Please refer to [2].
LED properties for LM36274. Please refer to [4].
- regulators: Regulator properties for LM3631 and LM3632.
Please refer to [3].
[1] ../leds/backlight/ti-lmu-backlight.txt
[2] ../leds/leds-lm3633.txt
[3] ../regulator/lm363x-regulator.txt
[4] ../leds/leds-lm36274.txt
lm3631@29 {
compatible = "ti,lm3631";
@ -213,3 +218,52 @@ lm3695@63 {
};
};
};
lm36274@11 {
compatible = "ti,lm36274";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x11>;
enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
regulators {
#address-cells = <1>;
#size-cells = <0>;
compatible = "ti,lm363x-regulator";
enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>,
<&pioC 1 GPIO_ACTIVE_HIGH>;
vboost {
regulator-name = "lcd_boost";
regulator-min-microvolt = <4000000>;
regulator-max-microvolt = <7150000>;
regulator-always-on;
};
vpos {
regulator-name = "lcd_vpos";
regulator-min-microvolt = <4000000>;
regulator-max-microvolt = <6500000>;
};
vneg {
regulator-name = "lcd_vneg";
regulator-min-microvolt = <4000000>;
regulator-max-microvolt = <6500000>;
};
};
backlight {
#address-cells = <1>;
#size-cells = <0>;
compatible = "ti,lm36274-backlight";
led@0 {
reg = <0>;
led-sources = <0 2>;
label = "white:backlight_cluster";
linux,default-trigger = "backlight";
};
};
};