2 files changed, 59 insertions, 0 deletions
diff --git a/dts/Bindings/pwm/atmel-hlcdc-pwm.txt b/dts/Bindings/pwm/atmel-hlcdc-pwm.txt
new file mode 100644
index 0000000000..cfda0d57d3
--- /dev/null
+++ b/dts/Bindings/pwm/atmel-hlcdc-pwm.txt
@@ -0,0 +1,29 @@
+Device-Tree bindings for Atmel's HLCDC (High-end LCD Controller) PWM driver
+
+The Atmel HLCDC PWM is subdevice of the HLCDC MFD device.
+See ../mfd/atmel-hlcdc.txt for more details.
+
+Required properties:
+ - compatible: value should be one of the following:
+   "atmel,hlcdc-pwm"
+ - pinctr-names: the pin control state names. Should contain "default".
+ - pinctrl-0: should contain the pinctrl states described by pinctrl
+   default.
+ - #pwm-cells: should be set to 3. This PWM chip use the default 3 cells
+   bindings defined in pwm.txt in this directory.
+
+Example:
+
+	hlcdc: hlcdc@f0030000 {
+		compatible = "atmel,sama5d3-hlcdc";
+		reg = <0xf0030000 0x2000>;
+		clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>;
+		clock-names = "periph_clk","sys_clk", "slow_clk";
+
+		hlcdc_pwm: hlcdc-pwm {
+			compatible = "atmel,hlcdc-pwm";
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_lcd_pwm>;
+			#pwm-cells = <3>;
+		};
+	};
diff --git a/dts/Bindings/pwm/pwm-bcm2835.txt b/dts/Bindings/pwm/pwm-bcm2835.txt
new file mode 100644
index 0000000000..fb6fb31bc4
--- /dev/null
+++ b/dts/Bindings/pwm/pwm-bcm2835.txt
@@ -0,0 +1,30 @@
+BCM2835 PWM controller (Raspberry Pi controller)
+
+Required properties:
+- compatible: should be "brcm,bcm2835-pwm"
+- reg: physical base address and length of the controller's registers
+- clock: This clock defines the base clock frequency of the PWM hardware
+  system, the period and the duty_cycle of the PWM signal is a multiple of
+  the base period.
+- #pwm-cells: Should be 2. See pwm.txt in this directory for a description of
+  the cells format.
+
+Examples:
+
+pwm@2020c000 {
+	compatible = "brcm,bcm2835-pwm";
+	reg = <0x2020c000 0x28>;
+	clocks = <&clk_pwm>;
+	#pwm-cells = <2>;
+};
+
+clocks {
+	....
+		clk_pwm: pwm {
+			compatible = "fixed-clock";
+			reg = <3>;
+			#clock-cells = <0>;
+			clock-frequency = <9200000>;
+		};
+	....
+};