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ARM: dts: Document usb clocks in samsung,exynos4210-ehci/ohci bindings 

The exynox4210-ehci and exynos4210-ohci nodes need a clock specified
using the common clock framework.  Document it.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Doug Anderson 2013-04-04 15:12:22 +09:00 committed by Kukjin Kim
parent b3cd7d876e
commit 319c51068c
1 changed files with 10 additions and 0 deletions
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10
Documentation/devicetree/bindings/usb/exynos-usb.txt
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@ -10,6 +10,8 @@ Required properties:
- reg: physical base address of the controller and length of memory mapped - reg: physical base address of the controller and length of memory mapped
region. region.
- interrupts: interrupt number to the cpu. - interrupts: interrupt number to the cpu.
- clocks: from common clock binding: handle to usb clock.
- clock-names: from common clock binding: Shall be "usbhost".
Optional properties: Optional properties:
- samsung,vbus-gpio: if present, specifies the GPIO that - samsung,vbus-gpio: if present, specifies the GPIO that
@ -22,6 +24,9 @@ Example:
reg = <0x12110000 0x100>; reg = <0x12110000 0x100>;
interrupts = <0 71 0>; interrupts = <0 71 0>;
samsung,vbus-gpio = <&gpx2 6 1 3 3>; samsung,vbus-gpio = <&gpx2 6 1 3 3>;
clocks = <&clock 285>;
clock-names = "usbhost";
}; };
OHCI OHCI
@ -31,10 +36,15 @@ Required properties:
- reg: physical base address of the controller and length of memory mapped - reg: physical base address of the controller and length of memory mapped
region. region.
- interrupts: interrupt number to the cpu. - interrupts: interrupt number to the cpu.
- clocks: from common clock binding: handle to usb clock.
- clock-names: from common clock binding: Shall be "usbhost".
Example: Example:
usb@12120000 { usb@12120000 {
compatible = "samsung,exynos4210-ohci"; compatible = "samsung,exynos4210-ohci";
reg = <0x12120000 0x100>; reg = <0x12120000 0x100>;
interrupts = <0 71 0>; interrupts = <0 71 0>;
clocks = <&clock 285>;
clock-names = "usbhost";
}; };