dts: Update STM32 PWM device tree binding/nodes for #pwm-cells

Add #pwm-cells to the STM32 PWM binding and dts files.  This is to
support have a pwms clients work properly.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>

dts/arm/st/f0/stm32f0.dtsi

@@ -172,6 +172,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -187,6 +188,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_3";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -202,6 +204,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -217,6 +220,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -232,6 +236,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_14";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -247,6 +252,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_15";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -262,6 +268,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_16";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -277,6 +284,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_17";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f0/stm32f072.dtsi

@@ -32,6 +32,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_2";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/f0/stm32f091.dtsi

@@ -20,6 +20,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_2";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/f1/stm32f1.dtsi

@@ -169,6 +169,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -184,6 +185,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_2";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -199,6 +201,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_3";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -214,6 +217,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_4";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f1/stm32f103Xe.dtsi

@@ -41,6 +41,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_5";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -56,6 +57,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -71,6 +73,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -109,6 +112,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_8";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f1/stm32f107.dtsi

@@ -29,6 +29,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_5";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -44,6 +45,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -59,6 +61,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f3/stm32f3.dtsi

@@ -177,6 +177,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_2";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -192,6 +193,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_3";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -207,6 +209,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -222,6 +225,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -237,6 +241,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_15";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -252,6 +257,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_16";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -267,6 +273,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_17";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/f3/stm32f302.dtsi

@@ -68,6 +68,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f3/stm32f303.dtsi

@@ -56,6 +56,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -71,6 +72,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_4";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -86,6 +88,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_8";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -101,6 +104,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_20";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f3/stm32f334.dtsi

@@ -20,6 +20,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f3/stm32f373.dtsi

@@ -66,6 +66,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_4";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -81,6 +82,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_5";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -96,6 +98,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_12";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -111,6 +114,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_13";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -126,6 +130,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_14";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -141,6 +146,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_18";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -156,6 +162,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_19";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/arm/st/f4/stm32f4.dtsi

@@ -225,6 +225,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -240,6 +241,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_2";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -255,6 +257,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_3";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -270,6 +273,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_4";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -285,6 +289,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_5";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -300,6 +305,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_9";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -315,6 +321,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_10";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -330,6 +337,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_11";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/f4/stm32f405.dtsi

@@ -79,6 +79,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -94,6 +95,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -109,6 +111,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_8";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -124,6 +127,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_12";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -139,6 +143,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_13";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -154,6 +159,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_14";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/f4/stm32f412.dtsi

@@ -52,6 +52,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -67,6 +68,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -82,6 +84,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_8";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -97,6 +100,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_12";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -112,6 +116,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_13";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -127,6 +132,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_14";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/f4/stm32f413.dtsi

@@ -41,6 +41,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -56,6 +57,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -71,6 +73,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_12";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -86,6 +89,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_13";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -101,6 +105,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_14";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -161,6 +166,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_8";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/f7/stm32f7.dtsi

@@ -319,6 +319,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -334,6 +335,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_2";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -349,6 +351,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_3";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -364,6 +367,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_4";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -379,6 +383,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_5";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -394,6 +399,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -409,6 +415,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -424,6 +431,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_8";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -439,6 +447,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_9";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -454,6 +463,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_10";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -469,6 +479,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_11";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -484,6 +495,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_12";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -499,6 +511,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_13";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -514,6 +527,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_14";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/l4/stm32l4.dtsi

@@ -194,6 +194,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_1";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -209,6 +210,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_2";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -224,6 +226,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_6";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -239,6 +242,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_7";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -254,6 +258,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_15";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -269,6 +274,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_16";
+				#pwm-cells = <2>;
 			};
 		};
 

dts/arm/st/l4/stm32l475.dtsi

@@ -113,6 +113,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_3";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -128,6 +129,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_4";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -143,6 +145,7 @@
 				status = "disabled";
 				st,prescaler = <0>;
 				label = "PWM_5";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -158,6 +161,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_8";
+				#pwm-cells = <2>;
 			};
 		};
 
@@ -173,6 +177,7 @@
 				status = "disabled";
 				st,prescaler = <10000>;
 				label = "PWM_17";
+				#pwm-cells = <2>;
 			};
 		};
 	};

dts/bindings/pwm/st,stm32-pwm.yaml

@@ -20,4 +20,9 @@ properties:
       category: required
       description: Clock prescaler at the input of the timer
       generation: define
+
+"#cells":
+  - channel
+# period in terms of nanoseconds
+  - period
 ...