From: Suman Anna Date: Thu, 5 Mar 2015 02:01:15 +0000 (-0600) Subject: Documentation: dt: add the omap hwspinlock bindings document X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=67140ed1c9d518565e6e2b86ba761652eb9bf3c4;p=linux-beck.git 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 Signed-off-by: Suman Anna Acked-by: Mark Rutland Signed-off-by: Ohad Ben-Cohen --- diff --git a/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt new file mode 100644 index 000000000000..2c9804f4f4ac --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt @@ -0,0 +1,26 @@ +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>; +};