boards: nucleo_l476rg and nucleo_wb55rg add timers

nucleo_l476rg:
adds tim3 with pwm on pb4, changes tim2 pwm pin from pa0 to pb10.
As a result timers are available on arduino pins D5 and D6.

nucleo_wb55rg:
adds tim1 with pwm on pa8, changes tim2 pwm pin from pa0 to pa15.
As a result timers are available on arduino pins D5 and D6.

Use default prescaler (==1) for 32-bit timer and
10.001 for 16-bit timers, as these are commonly used.

Signed-off-by: Thomas Stranger <[email protected]>

Author: str4t0m

boards/arm/nucleo_l476rg/nucleo_l476rg.dts

@@ -140,7 +140,17 @@
 
 	pwm2: pwm {
 		status = "okay";
-		pinctrl-0 = <&tim2_ch1_pa0>;
+		pinctrl-0 = <&tim2_ch3_pb10>;
+	};
+};
+
+&timers3 {
+	status = "okay";
+
+	pwm3: pwm {
+		status = "okay";
+		st,prescaler = <10000>;
+		pinctrl-0 = <&tim3_ch1_pb4>;
 	};
 };
 

boards/arm/nucleo_wb55rg/nucleo_wb55rg.dts

@@ -133,11 +133,21 @@
 	status = "okay";
 };
 
+&timers1 {
+	status = "okay";
+
+	pwm1: pwm {
+		status = "okay";
+		st,prescaler = <10000>;
+		pinctrl-0 = <&tim1_ch1_pa8>;
+	};
+};
+
 &timers2 {
 	status = "okay";
 	pwm2: pwm {
 		status = "okay";
-		pinctrl-0 = <&tim2_ch1_pa0>;
+		pinctrl-0 = <&tim2_ch1_pa15>;
 	};
 };