[PATCH 01/13] hwspinlock: OMAP4: Add spinlock support in DT
From: Ohad Ben-Cohen <hidden>
Date: 2011-10-10 12:49:14
Also in:
linux-devicetree, linux-omap
Hi Benoit, On Mon, Sep 26, 2011 at 7:50 PM, Benoit Cousson [off-list ref] wrote:
quoted hunk ↗ jump to hunk
+++ b/Documentation/devicetree/bindings/hwspinlock/omap-spinlock.txt@@ -0,0 +1,5 @@ +* HW spinlock on OMAP4 platform: + +Required properties: +- compatible : Must be "ti,omap4-spinlock"; +- ti,hwmods : "spinlock"diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi index 4c61c82..7a7f31e 100644 --- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi@@ -99,5 +99,10 @@? ? ? ? ? ? ? ? ? ? ? ?reg = <0x48241000 0x1000>, ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?<0x48240100 0x0100>; ? ? ? ? ? ? ? ?}; + + ? ? ? ? ? ? ? spinlock { + ? ? ? ? ? ? ? ? ? ? ? compatible = "ti,omap4-spinlock"; + ? ? ? ? ? ? ? ? ? ? ? ti,hwmods = "spinlock"; + ? ? ? ? ? ? ? };
I think it'd be nice to add the 'baseid' property as we discussed for dynamic allocation of hwspinlocks. The patch that adds the hwspinlock groundwork for this is in linux-next and will hopefully get into 3.2 if everything works out well: https://lkml.org/lkml/2011/9/12/194 Of course, as we discussed with Arnd, we will use phandles to the hwspinlock controller when we'll get to static allocations of hwspinlock instances. Thanks, Ohad.