ARM: STi: STiH416: Add DT nodes for PWM

Supply top level nodes for the STiH416 based development boards.
The Pinctrl configuration has already been applied, so the only
missing piece of the DT puzzle is for a board's DTB to enable
the nodes.

Signed-off-by: Ajit Pal Singh <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>
Signed-off-by: Maxime Coquelin <[e-mail]>

arch/arm/boot/dts/stih416.dtsi

···
 			interrupts	= <0 210 0>;
 			pinctrl-names 	= "default";
 			pinctrl-0 	= <&pinctrl_sbc_serial1>;
-			clocks          = <&clk_sysin>;
+			clocks		= <&clk_sysin>;
 		};
 
 		i2c@fed40000 {
···
 			resets = <&powerdown STIH416_USB3_POWERDOWN>,
 				 <&softreset STIH416_USB3_SOFTRESET>;
 			reset-names = "power", "softreset";
+		};
+
+		/* SAS PWM Module */
+		pwm0: pwm@fed10000 {
+			compatible	= "st,sti-pwm";
+			status		= "disabled";
+			#pwm-cells	= <2>;
+			reg		= <0xfed10000 0x68>;
+
+			pinctrl-names	= "default";
+			pinctrl-0 = 	<&pinctrl_pwm0_chan0_default
+					&pinctrl_pwm0_chan1_default
+					&pinctrl_pwm0_chan2_default
+					&pinctrl_pwm0_chan3_default>;
+
+			clock-names	= "pwm";
+			clocks		= <&clk_sysin>;
+			st,pwm-num-chan = <4>;
+		};
+
+		/* SBC PWM Module */
+		pwm1: pwm@fe510000 {
+			compatible	= "st,sti-pwm";
+			status		= "disabled";
+			#pwm-cells	= <2>;
+			reg		= <0xfe510000 0x68>;
+
+			pinctrl-names	= "default";
+			pinctrl-0	= <&pinctrl_pwm1_chan0_default
+					/*
+					 * Shared with SBC_OBS_NOTRST.  Don't
+					 * enable unless you really know what
+					 * you're doing.
+					 *
+					 * &pinctrl_pwm1_chan1_default
+					 */
+					&pinctrl_pwm1_chan2_default
+					&pinctrl_pwm1_chan3_default>;
+
+			clock-names	= "pwm";
+			clocks		= <&clk_sysin>;
+			st,pwm-num-chan = <3>;
 		};
 	};
 };