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Message-ID: <20190605125634.7042-2-dmurphy@ti.com>
Date: Wed, 5 Jun 2019 07:56:30 -0500
From: Dan Murphy <dmurphy@...com>
To: <jacek.anaszewski@...il.com>, <pavel@....cz>, <broonie@...nel.org>,
<lgirdwood@...il.com>
CC: <lee.jones@...aro.org>, <linux-leds@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Dan Murphy <dmurphy@...com>,
Rob Herring <robh@...nel.org>
Subject: [PATCH v6 1/5] dt-bindings: mfd: Add lm36274 bindings to ti-lmu
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@...com>
Reviewed-by: Rob Herring <robh@...nel.org>
Acked-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@...il.com>
---
.../devicetree/bindings/mfd/ti-lmu.txt | 54 +++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
index 782d3c9812ed..2296b8f24de4 100644
--- a/Documentation/devicetree/bindings/mfd/ti-lmu.txt
+++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
@@ -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";
+ };
+ };
+};
--
2.21.0.5.gaeb582a983
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