ARM: bcm2835: Add the Raspberry Pi power domain driver to the DT.

This connects the USB driver to the USB power domain, so that USB can actually be turned on at boot if the bootloader didn't do it for us. Signed-off-by: Alexander Aring <[email protected]> Signed-off-by: Eric Anholt <[email protected]> Reviewed-by: Kevin Hilman <[email protected]>
anholt · Feb 3, 2016 · 5ec6f2c · 5ec6f2c
1 parent 7a1298e
commit 5ec6f2c
Show file tree

Hide file tree

Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -1,3 +1,5 @@
+#include <dt-bindings/power/raspberrypi-power.h>
+
 / {
 	memory {
 		reg = <0 0x10000000>;
@@ -18,6 +20,12 @@
 			compatible = "raspberrypi,bcm2835-firmware";
 			mboxes = <&mailbox>;
 		};
+
+		power: power {
+			compatible = "raspberrypi,bcm2835-power";
+			firmware = <&firmware>;
+			#power-domain-cells = <1>;
+		};
 	};
 };
 
@@ -62,3 +70,7 @@
 &pwm {
 	status = "okay";
 };
+
+&usb {
+	power-domains = <&power RPI_POWER_DOMAIN_USB>;
+};
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
@@ -218,7 +218,7 @@
 			status = "disabled";
 		};
 
-		usb@7e980000 {
+		usb: usb@7e980000 {
 			compatible = "brcm,bcm2835-usb";
 			reg = <0x7e980000 0x10000>;
 			interrupts = <1 9>;