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Commit 67140ed1 authored by Suman Anna's avatar Suman Anna Committed by Ohad Ben-Cohen
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Documentation: dt: add the omap hwspinlock bindings document 



HwSpinlock IP is present only on OMAP4 and other newer SoCs,
which are all device-tree boot only. This patch adds the
DT bindings information for OMAP hwspinlock module.

Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: default avatarSuman Anna <s-anna@ti.com>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarOhad Ben-Cohen <ohad@wizery.com>
parent fb7737e9

Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt

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OMAP4+ HwSpinlock Driver

========================



Required properties:

- compatible:		Should be "ti,omap4-hwspinlock" for

			    OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs

- reg:			Contains the hwspinlock module register address space

			(base address and length)

- ti,hwmods:		Name of the hwmod associated with the hwspinlock device

- #hwlock-cells:	Should be 1. The OMAP hwspinlock users will use a

			0-indexed relative hwlock number as the argument

			specifier value for requesting a specific hwspinlock

			within a hwspinlock bank.



Please look at the generic hwlock binding for usage information for consumers,

"Documentation/devicetree/bindings/hwlock/hwlock.txt"



Example:



/* OMAP4 */

hwspinlock: spinlock@4a0f6000 {

	compatible = "ti,omap4-hwspinlock";

	reg = <0x4a0f6000 0x1000>;

	ti,hwmods = "spinlock";

	#hwlock-cells = <1>;

};