From: Alexander Aring <alex.aring@xxxxxxxxx>
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 <alex.aring@xxxxxxxxx>
Signed-off-by: Eric Anholt <eric@xxxxxxxxxx>
---
arch/arm/boot/dts/bcm2835-rpi.dtsi | 11 +++++++++++
arch/arm/boot/dts/bcm2835.dtsi | 2 +-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 3572f03..7982d22 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -1,3 +1,4 @@
+#include <dt-bindings/soc/raspberrypi-power.h>
#include "bcm2835.dtsi"
/ {
@@ -20,6 +21,12 @@
compatible = "raspberrypi,bcm2835-firmware";
mboxes = <&mailbox>;
};
+
+ power: power {
+ compatible = "raspberrypi,bcm2835-power";
+ firmware = <&firmware>;
+ #power-domain-cells = <1>;
+ };
};
};
@@ -60,3 +67,7 @@
status = "okay";
bus-width = <4>;
};
+
+&usb {
+ power-domains = <&power RPI_POWER_DOMAIN_USB>;
+};
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index aef64de..6d62af0 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -177,7 +177,7 @@
status = "disabled";
};
- usb@7e980000 {
+ usb: usb@7e980000 {
compatible = "brcm,bcm2835-usb";
reg = <0x7e980000 0x10000>;
interrupts = <1 9>;
--
2.6.2
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