RE: [PATCH v2] devicetree: Add generic IOMMU device tree bindings

2014-06-17 Thread Stuart Yoder
, Jun 16, 2014 at 05:56:32PM +0100, Stuart Yoder wrote: Do you have use-cases where you really need to change these mappings dynamically? Yes. In the case of a PCI bus-- you may not know in advance how many PCI devices there are until you probe the bus. We have another FSL

RE: [PATCH v2] devicetree: Add generic IOMMU device tree bindings

2014-06-17 Thread Stuart Yoder
-Original Message- From: Sethi Varun-B16395 Sent: Tuesday, June 17, 2014 6:22 AM To: Will Deacon Cc: Mark Rutland; devicet...@vger.kernel.org; linux-samsung- s...@vger.kernel.org; Arnd Bergmann; Pawel Moll; Ian Campbell; Grant Grundler; Stephen Warren; Yoder Stuart-B08248; Rob

RE: [PATCH v2] devicetree: Add generic IOMMU device tree bindings

2014-06-16 Thread Stuart Yoder
-Original Message- From: Will Deacon [mailto:will.dea...@arm.com] Sent: Monday, June 16, 2014 10:28 AM To: Sethi Varun-B16395 Cc: Thierry Reding; Mark Rutland; devicet...@vger.kernel.org; linux- samsung-...@vger.kernel.org; Pawel Moll; Arnd Bergmann; Ian Campbell; Grant Grundler;

RE: [PATCH v2] devicetree: Add generic IOMMU device tree bindings

2014-06-16 Thread Stuart Yoder
Stuart, On Mon, Jun 16, 2014 at 05:56:32PM +0100, Stuart Yoder wrote: Do you have use-cases where you really need to change these mappings dynamically? Yes. In the case of a PCI bus-- you may not know in advance how many PCI devices there are until you probe the bus. We have