From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Fri, 04 Jul 2014 11:05:01 +0200 Subject: [PATCH v3 02/10] devicetree: Add generic IOMMU device tree bindings In-Reply-To: <9ffe3c3871ef4b60a955259bfa0bed6c@BL2PR03MB468.namprd03.prod.outlook.com> References: <1403815790-8548-1-git-send-email-thierry.reding@gmail.com> <1403815790-8548-3-git-send-email-thierry.reding@gmail.com> <9ffe3c3871ef4b60a955259bfa0bed6c@BL2PR03MB468.namprd03.prod.outlook.com> Message-ID: <9506037.pCJq3zRKJU@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Friday 04 July 2014 06:42:48 Varun Sethi wrote: > Master node corresponds to the device node, right? Master ID would correspond > to Stream ID? We are already using "iommu-parent" property to link a device > to its corresponding IOMMU. We can use the same property instead of using "iommus". I don't see "iommu-parent" used anywhere, just "fsl,iommu-parent". We can probably allow "fsl,iommu-parent" as an alias for "iommus" for backwards- compatibility if that helps you on PowerPC. For ARM, I'd prefer to mandate that we use just "iommus". Arnd