[PATCH v5 4/4] Documentation: add LP3943 DT bindings and document
Bindings for LP3943 MFD, GPIO and PWM controller are added.
Cc: devicet...@vger.kernel.org
Cc: Lee Jones
Cc: Linus Walleij
Cc: Samuel Ortiz
Signed-off-by: Milo Kim
Acked-by: Thierry Reding
---
.../devicetree/bindings/gpio/gpio-lp3943.txt | 37 +
Documentation/devicetree/bindings/mfd/lp3943.txt | 33 +++
.../devicetree/bindings/pwm/pwm-lp3943.txt | 58
3 files changed, 128 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
create mode 100644 Documentation/devicetree/bindings/mfd/lp3943.txt
create mode 100644 Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
b/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
new file mode 100644
index 000..80fcb7d
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
@@ -0,0 +1,37 @@
+TI/National Semiconductor LP3943 GPIO controller
+
+Required properties:
+ - compatible: "ti,lp3943-gpio"
+ - gpio-controller: Marks the device node as a GPIO controller.
+ - #gpio-cells: Should be 2. See gpio.txt in this directory for a
+ description of the cells format.
+
+Example:
+Simple LED controls with LP3943 GPIO controller
+
+ {
+ lp3943@60 {
+ compatible = "ti,lp3943";
+ reg = <0x60>;
+
+ gpioex: gpio {
+ compatible = "ti,lp3943-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
+};
+
+leds {
+ compatible = "gpio-leds";
+ indicator1 {
+ label = "indi1";
+ gpios = < 9 GPIO_ACTIVE_LOW>;
+ };
+
+ indicator2 {
+ label = "indi2";
+ gpios = < 10 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+};
diff --git a/Documentation/devicetree/bindings/mfd/lp3943.txt
b/Documentation/devicetree/bindings/mfd/lp3943.txt
new file mode 100644
index 000..e8591d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/lp3943.txt
@@ -0,0 +1,33 @@
+TI/National Semiconductor LP3943 MFD driver
+
+Required properties:
+ - compatible: "ti,lp3943"
+ - reg: I2C slave address. From 0x60 to 0x67.
+
+LP3943 consists of two sub-devices, lp3943-gpio and lp3943-pwm.
+
+For the LP3943 GPIO properties please refer to:
+Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
+
+For the LP3943 PWM properties please refer to:
+Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
+
+Example:
+
+lp3943@60 {
+ compatible = "ti,lp3943";
+ reg = <0x60>;
+
+ gpioex: gpio {
+ compatible = "ti,lp3943-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ pwm3943: pwm {
+ compatible = "ti,lp3943-pwm";
+ #pwm-cells = <2>;
+ ti,pwm0 = <8 9 10>;
+ ti,pwm1 = <15>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
b/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
new file mode 100644
index 000..7bd9d3b
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
@@ -0,0 +1,58 @@
+TI/National Semiconductor LP3943 PWM controller
+
+Required properties:
+ - compatible: "ti,lp3943-pwm"
+ - #pwm-cells: Should be 2. See pwm.txt in this directory for a
+description of the cells format.
+Note that this hardware limits the period length to the
+range 6250~160.
+ - ti,pwm0 or ti,pwm1: Output pin number(s) for PWM channel 0 or 1.
+0 = output 0
+1 = output 1
+.
+.
+15 = output 15
+
+Example:
+PWM 0 is for RGB LED brightness control
+PWM 1 is for brightness control of LP8557 backlight device
+
+ {
+ lp3943@60 {
+ compatible = "ti,lp3943";
+ reg = <0x60>;
+
+ /*
+* PWM 0 : output 8, 9 and 10
+* PWM 1 : output 15
+*/
+ pwm3943: pwm {
+ compatible = "ti,lp3943-pwm";
+ #pwm-cells = <2>;
+ ti,pwm0 = <8 9 10>;
+ ti,pwm1 = <15>;
+ };
+ };
+
+};
+
+/* LEDs control with PWM 0 of LP3943 */
+pwmleds {
+ compatible = "pwm-leds";
+ rgb {
+ label = "indi::rgb";
+ pwms = < 0 1>;
+ max-brightness = <255>;
+ };
+};
+
+ {
+ /* Backlight control with PWM 1 of LP3943 */
+ backlight@2c {
+ compatible = "ti,lp8557";
+ reg = <0x2c>;
+
+ pwms = < 1 1>;
+ pwm-names = "lp8557";
+ };
+};
--
1.7.10.4
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[PATCH v5 4/4] Documentation: add LP3943 DT bindings and document
Bindings for LP3943 MFD, GPIO and PWM controller are added.
Cc: devicet...@vger.kernel.org
Cc: Lee Jones lee.jo...@linaro.org
Cc: Linus Walleij linus.wall...@linaro.org
Cc: Samuel Ortiz sa...@linux.intel.com
Signed-off-by: Milo Kim milo@ti.com
Acked-by: Thierry Reding thierry.red...@gmail.com
---
.../devicetree/bindings/gpio/gpio-lp3943.txt | 37 +
Documentation/devicetree/bindings/mfd/lp3943.txt | 33 +++
.../devicetree/bindings/pwm/pwm-lp3943.txt | 58
3 files changed, 128 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
create mode 100644 Documentation/devicetree/bindings/mfd/lp3943.txt
create mode 100644 Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
b/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
new file mode 100644
index 000..80fcb7d
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
@@ -0,0 +1,37 @@
+TI/National Semiconductor LP3943 GPIO controller
+
+Required properties:
+ - compatible: ti,lp3943-gpio
+ - gpio-controller: Marks the device node as a GPIO controller.
+ - #gpio-cells: Should be 2. See gpio.txt in this directory for a
+ description of the cells format.
+
+Example:
+Simple LED controls with LP3943 GPIO controller
+
+i2c4 {
+ lp3943@60 {
+ compatible = ti,lp3943;
+ reg = 0x60;
+
+ gpioex: gpio {
+ compatible = ti,lp3943-gpio;
+ gpio-controller;
+ #gpio-cells = 2;
+ };
+ };
+};
+
+leds {
+ compatible = gpio-leds;
+ indicator1 {
+ label = indi1;
+ gpios = gpioex 9 GPIO_ACTIVE_LOW;
+ };
+
+ indicator2 {
+ label = indi2;
+ gpios = gpioex 10 GPIO_ACTIVE_LOW;
+ default-state = off;
+ };
+};
diff --git a/Documentation/devicetree/bindings/mfd/lp3943.txt
b/Documentation/devicetree/bindings/mfd/lp3943.txt
new file mode 100644
index 000..e8591d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/lp3943.txt
@@ -0,0 +1,33 @@
+TI/National Semiconductor LP3943 MFD driver
+
+Required properties:
+ - compatible: ti,lp3943
+ - reg: I2C slave address. From 0x60 to 0x67.
+
+LP3943 consists of two sub-devices, lp3943-gpio and lp3943-pwm.
+
+For the LP3943 GPIO properties please refer to:
+Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
+
+For the LP3943 PWM properties please refer to:
+Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
+
+Example:
+
+lp3943@60 {
+ compatible = ti,lp3943;
+ reg = 0x60;
+
+ gpioex: gpio {
+ compatible = ti,lp3943-gpio;
+ gpio-controller;
+ #gpio-cells = 2;
+ };
+
+ pwm3943: pwm {
+ compatible = ti,lp3943-pwm;
+ #pwm-cells = 2;
+ ti,pwm0 = 8 9 10;
+ ti,pwm1 = 15;
+ };
+};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
b/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
new file mode 100644
index 000..7bd9d3b
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-lp3943.txt
@@ -0,0 +1,58 @@
+TI/National Semiconductor LP3943 PWM controller
+
+Required properties:
+ - compatible: ti,lp3943-pwm
+ - #pwm-cells: Should be 2. See pwm.txt in this directory for a
+description of the cells format.
+Note that this hardware limits the period length to the
+range 6250~160.
+ - ti,pwm0 or ti,pwm1: Output pin number(s) for PWM channel 0 or 1.
+0 = output 0
+1 = output 1
+.
+.
+15 = output 15
+
+Example:
+PWM 0 is for RGB LED brightness control
+PWM 1 is for brightness control of LP8557 backlight device
+
+i2c3 {
+ lp3943@60 {
+ compatible = ti,lp3943;
+ reg = 0x60;
+
+ /*
+* PWM 0 : output 8, 9 and 10
+* PWM 1 : output 15
+*/
+ pwm3943: pwm {
+ compatible = ti,lp3943-pwm;
+ #pwm-cells = 2;
+ ti,pwm0 = 8 9 10;
+ ti,pwm1 = 15;
+ };
+ };
+
+};
+
+/* LEDs control with PWM 0 of LP3943 */
+pwmleds {
+ compatible = pwm-leds;
+ rgb {
+ label = indi::rgb;
+ pwms = pwm3943 0 1;
+ max-brightness = 255;
+ };
+};
+
+i2c4 {
+ /* Backlight control with PWM 1 of LP3943 */
+ backlight@2c {
+ compatible = ti,lp8557;
+ reg = 0x2c;
+
+ pwms = pwm3943 1 1;
+ pwm-names = lp8557;
+ };
+};
--
1.7.10.4
--
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