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Date: Fri, 14 Feb 2014 15:32:44 +0900
From: Milo Kim <milo.kim@...com>
To: Lee Jones <lee.jones@...aro.org>, Jingoo Han <jg1.han@...sung.com>,
Bryan Wu <cooloney@...il.com>, Mark Brown <broonie@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
Samuel Ortiz <sameo@...ux.intel.com>,
Milo Kim <milo.kim@...com>
Subject: [PATCH 10/10] Documentation: Add device tree bindings for TI LMU devices
Bindings for TI LMU, backlight, LM3631 regulator and LM3633 LED are added.
Cc: devicetree@...r.kernel.org
Cc: Bryan Wu <cooloney@...il.com>
Cc: Jingoo Han <jg1.han@...sung.com>
Cc: Lee Jones <lee.jones@...aro.org>
Cc: Mark Brown <broonie@...nel.org>
Cc: Samuel Ortiz <sameo@...ux.intel.com>
Signed-off-by: Milo Kim <milo.kim@...com>
---
.../devicetree/bindings/leds/leds-lm3633.txt | 39 +++++
Documentation/devicetree/bindings/mfd/ti-lmu.txt | 182 ++++++++++++++++++++
.../bindings/regulator/lm3631-regulator.txt | 49 ++++++
.../bindings/video/backlight/ti-lmu-backlight.txt | 127 ++++++++++++++
4 files changed, 397 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3633.txt
create mode 100644 Documentation/devicetree/bindings/mfd/ti-lmu.txt
create mode 100644 Documentation/devicetree/bindings/regulator/lm3631-regulator.txt
create mode 100644 Documentation/devicetree/bindings/video/backlight/ti-lmu-backlight.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3633.txt b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
new file mode 100644
index 0000000..4adeb62
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
@@ -0,0 +1,39 @@
+TI LMU LM3633 LED device tree bindings
+
+Required properties:
+ - compatible: "ti,lm3633-leds"
+ - lvled1-used, lvled2-used, lvled3-used, lvled4-used, lvled5-used, lvled6-used
+ : LED string configuration. Each child node should include this information
+ about which LED string is used.
+
+Optional properties:
+ - chan-name: LED channel name
+ - max-current-milliamp: Max current setting. Unit is mA.
+
+Example:
+
+lm3633@36 {
+ compatible = "ti,lm3633";
+ reg = <0x36>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ leds {
+ compatible = "ti,lm3633-leds";
+
+ chan2 {
+ chan-name = "status";
+ lvled2-used;
+ max-current-milliamp = /bits/ 8 <6>;
+ };
+
+ chan456 {
+ chan-name = "rgb";
+ lvled4-used;
+ lvled5-used;
+ lvled6-used;
+
+ max-current-milliamp = /bits/ 8 <5>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/mfd/ti-lmu.txt b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
new file mode 100644
index 0000000..2b3ecca
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ti-lmu.txt
@@ -0,0 +1,182 @@
+TI LMU(Lighting Management Unit) device tree bindings
+
+TI LMU driver supports lighting devices belows.
+
+ Name Device tree properties
+ ------ ------------------------
+ LM3532 Backlight
+ LM3631 Backlight and regulator
+ LM3633 Backlight and LED
+ LM3695 Backlight
+ LM3697 Backlight
+
+Those have shared device tree properties.
+
+Required properties:
+ - compatible: "ti,lm3532", "ti,lm3631", "ti,lm3633", "ti,lm3695", "ti,lm3697"
+ - reg: I2C slave address.
+ 0x38 is LM3532
+ 0x29 is LM3631
+ 0x36 is LM3633, LM3697
+ 0x63 is LM3695
+ - ti,enable-gpio: GPIO number of hardware enable pin
+
+For the TI LMU backlight properties, please refer to:
+Documentation/devicetree/bindings/video/backlight/ti-lmu-backlight.txt
+
+For the LM3631 regulator properties, please refer to:
+Documentation/devicetree/bindings/regulator/lm3631-regulator.txt
+
+For the LM3633 LED properties, please refer to:
+Documentation/devicetree/bindings/leds/leds-lm3633.txt
+
+Examples:
+
+lm3532@38 {
+ compatible = "ti,lm3532";
+ reg = <0x38>;
+
+ /* GPIO134 for HWEN pin */
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3532-backlight";
+
+ lcd {
+ hvled1-used;
+ hvled2-used;
+ hvled3-used;
+
+ max-current-milliamp = /bits/ 8 <20>;
+ ramp-up = <1>;
+ ramp-down = <1>;
+ };
+ };
+};
+
+lm3631@29 {
+ compatible = "ti,lm3631";
+ reg = <0x29>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ /* Only Vpos and Vneg are used with LCD boost */
+ regulators {
+ compatible = "ti,lm3631-regulator";
+
+ vboost {
+ regulator-name = "lcd_boost";
+ regulator-min-microvolt = <4500000>;
+ regulator-max-microvolt = <6350000>;
+ regulator-always-on;
+ };
+
+ vpos {
+ regulator-name = "lcd_vpos";
+ regulator-min-microvolt = <4000000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-boot-on;
+ };
+
+ vneg {
+ regulator-name = "lcd_vneg";
+ regulator-min-microvolt = <4000000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-boot-on;
+ };
+ };
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3631-backlight";
+
+ lcd_bl {
+ bl-name = "lcd";
+ hvled1-used;
+ hvled2-used;
+ ramp-up = <100>;
+ };
+ };
+};
+
+lm3633@36 {
+ compatible = "ti,lm3633";
+ reg = <0x36>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3633-backlight";
+
+ main {
+ bl-name = "main_lcd";
+ hvled2-used;
+ hvled3-used;
+ max-current-milliamp = /bits/ 8 <20>;
+ };
+
+ front {
+ bl-name = "front_lcd";
+ hvled1-used;
+ max-current-milliamp = /bits/ 8 <10>;
+ };
+ };
+
+ leds {
+ compatible = "ti,lm3633-leds";
+
+ chan2 {
+ chan-name = "status";
+ lvled2-used;
+ max-current-milliamp = /bits/ 8 <6>;
+ };
+
+ chan456 {
+ chan-name = "rgb";
+ lvled4-used;
+ lvled5-used;
+ lvled6-used;
+
+ max-current-milliamp = /bits/ 8 <5>;
+ };
+ };
+};
+
+lm3695@63 {
+ compatible = "ti,lm3695";
+ reg = <0x63>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3695-backlight";
+
+ lcd {
+ hvled1-used;
+ hvled2-used;
+ };
+ };
+};
+
+lm3697@36 {
+ compatible = "ti,lm3697";
+ reg = <0x36>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3697-backlight";
+
+ lcd_bl {
+ bl-name = "lcd";
+ hvled1-used;
+ hvled2-used;
+ hvled3-used;
+
+ max-current-milliamp = /bits/ 8 <20>;
+ initial-brightness = /bits/ 8 <10>;
+
+ ramp-up = <500>;
+ ramp-down = <500>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/regulator/lm3631-regulator.txt b/Documentation/devicetree/bindings/regulator/lm3631-regulator.txt
new file mode 100644
index 0000000..e090076
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/lm3631-regulator.txt
@@ -0,0 +1,49 @@
+TI LMU LM3631 regulator device tree bindings
+
+Required properties:
+ - compatible: "ti,lm3631-regulator"
+
+Optional properties:
+ - regulator-name
+ - regulator-min-microvolt
+ - regulator-max-microvolt
+ - regulator-always-on
+ - regulator-boot-on
+
+ For those properties, please refer to:
+ Documentation/devicetree/bindings/regulator/regulator.txt
+
+Example:
+
+lm3631@29 {
+ compatible = "ti,lm3631";
+ reg = <0x29>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ /* Only VPOS and VNEG are used with LCD boost */
+ regulators {
+ compatible = "ti,lm3631-regulator";
+
+ vboost {
+ regulator-name = "lcd_boost";
+ regulator-min-microvolt = <4500000>;
+ regulator-max-microvolt = <6350000>;
+ regulator-always-on;
+ };
+
+ vpos {
+ regulator-name = "lcd_vpos";
+ regulator-min-microvolt = <4000000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-boot-on;
+ };
+
+ vneg {
+ regulator-name = "lcd_vneg";
+ regulator-min-microvolt = <4000000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-boot-on;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/video/backlight/ti-lmu-backlight.txt b/Documentation/devicetree/bindings/video/backlight/ti-lmu-backlight.txt
new file mode 100644
index 0000000..554ddca
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/ti-lmu-backlight.txt
@@ -0,0 +1,127 @@
+TI LMU backlight device tree bindings
+
+Required properties:
+ - compatible: One of lists below with "ti,lmu-backlight" should be set.
+ "ti,lm3532-backlight"
+ "ti,lm3631-backlight"
+ "ti,lm3633-backlight"
+ "ti,lm3695-backlight"
+ "ti,lm3697-backlight"
+ - hvled1-used, hvled2-used, hvled3-used: Backlight string configuration.
+ Each backlight child node should include this information about
+ which backlight string is used.
+
+Optional properties
+ - bl-name: Backlight device name
+ - max-current-milliamp: Max current setting. Unit is mA.
+ - initial-brightness: Backlight initial brightness
+ - ramp-up: Light effect for ramp up rate. Unit is msec.
+ - ramp-down: Light effect for ramp down rate. Unit is msec.
+ - pwm-period: PWM period. Only valid for PWM brightness control mode.
+ - pwms, pwm-names: For the PWM user nodes, please refer to
+ Documentation/devicetree/bindings/pwm/pwm.txt
+
+Examples:
+
+lm3532@38 {
+ compatible = "ti,lm3532";
+ reg = <0x38>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3532-backlight";
+
+ lcd {
+ hvled1-used;
+ hvled2-used;
+ hvled3-used;
+
+ max-current-milliamp = /bits/ 8 <20>;
+ };
+ };
+};
+
+lm3631@29 {
+ compatible = "ti,lm3631";
+ reg = <0x29>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3631-backlight";
+
+ lcd_bl {
+ bl-name = "lcd";
+ hvled1-used;
+ hvled2-used;
+ ramp-up = <100>;
+ };
+ };
+};
+
+lm3633@36 {
+ compatible = "ti,lm3633";
+ reg = <0x36>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3633-backlight";
+
+ main {
+ bl-name = "main_lcd";
+ hvled2-used;
+ hvled3-used;
+ max-current-milliamp = /bits/ 8 <20>;
+ };
+
+ front {
+ bl-name = "front_lcd";
+ hvled1-used;
+ max-current-milliamp = /bits/ 8 <10>;
+ };
+ };
+};
+
+lm3695@63 {
+ compatible = "ti,lm3695";
+ reg = <0x63>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3695-backlight";
+
+ lcd {
+ hvled1-used;
+ hvled2-used;
+ };
+ };
+};
+
+lm3697@36 {
+ compatible = "ti,lm3697";
+ reg = <0x36>;
+
+ ti,enable-gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+
+ pwms = <&pwm3943 1 10000>;
+ pwm-names = "lmu-backlight";
+ backlight {
+ compatible = "ti,lmu-backlight", "ti,lm3697-backlight";
+
+ lcd {
+ hvled1-used;
+ hvled2-used;
+ hvled3-used;
+
+ max-current-milliamp = /bits/ 8 <20>;
+ initial-brightness = /bits/ 8 <10>;
+
+ ramp-up = <500>;
+ ramp-down = <500>;
+ pwm-period = <10000>;
+ };
+ };
+};
--
1.7.9.5
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