ARM: dts: bcm283x: Fix PWM pin assignment

All RPi 1 and 2 boards used the PWM (audio out) on pin 40 and 45.
So it was easy to define them in bcm2835-rpi.dtsi. Starting with RPi 3
this wont work anymore, because it uses pin 40 and 41. Furthermore the
Zero variants doesn't have audio out.

This patch fixes this pin conflict by moving the PWM node to the board-level.

Change summary:
RPi 3 B:      PWM1 45 -> 41
Zero, Zero W: PWM disabled
all other:    no functional change

Reported-by: Baruch Siach <[email protected]>
Signed-off-by: Stefan Wahren <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Signed-off-by: Eric Anholt <[email protected]>

Author: lategoodbye

arch/arm/boot/dts/bcm2835-rpi-a-plus.dts

@@ -101,6 +101,12 @@
 	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio14>;

arch/arm/boot/dts/bcm2835-rpi-a.dts

@@ -96,6 +96,12 @@
 	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio14>;

arch/arm/boot/dts/bcm2835-rpi-b-plus.dts

@@ -103,6 +103,12 @@
 	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio14>;

arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts

@@ -96,6 +96,12 @@
 	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio14>;

arch/arm/boot/dts/bcm2835-rpi-b.dts

@@ -91,6 +91,12 @@
 	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio14>;

arch/arm/boot/dts/bcm2835-rpi.dtsi

@@ -83,12 +83,6 @@
 	bus-width = <4>;
 };
 
-&pwm {
-	pinctrl-names = "default";
-	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
-	status = "okay";
-};
-
 &usb {
 	power-domains = <&power RPI_POWER_DOMAIN_USB>;
 };

arch/arm/boot/dts/bcm2836-rpi-2-b.dts

@@ -41,6 +41,12 @@
 	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_gpio14>;

arch/arm/boot/dts/bcm2837-rpi-3-b.dts

@@ -42,6 +42,12 @@
 	};
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
+	status = "okay";
+};
+
 /* uart0 communicates with the BT module */
 &uart0 {
 	pinctrl-names = "default";