Documentation: dt: add the omap hwspinlock bindings document (67140ed1) · Commits · 戴 / test

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:

Suman Anna <s-anna@ti.com> Acked-by:

Mark Rutland <mark.rutland@arm.com> Signed-off-by:

Ohad Ben-Cohen <ohad@wizery.com>

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

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Original line number	Diff line number	Diff line
		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>;
		};

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