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

2014-05-30 Thread Dave Martin
On Fri, May 23, 2014 at 10:36:35PM +0200, Thierry Reding wrote: From: Thierry Reding tred...@nvidia.com This commit introduces a generic device tree binding for IOMMU devices. Only a very minimal subset is described here, but it is enough to cover the requirements of both the Exynos System

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

2014-05-30 Thread Dave Martin
On Fri, May 30, 2014 at 08:30:08AM +0100, Thierry Reding wrote: On Thu, May 29, 2014 at 09:52:22AM -0600, Stephen Warren wrote: On 05/23/2014 02:36 PM, Thierry Reding wrote: From: Thierry Reding tred...@nvidia.com This commit introduces a generic device tree binding for IOMMU devices.

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

2014-05-30 Thread Rob Herring
On Fri, May 23, 2014 at 3:33 PM, Thierry Reding thierry.red...@gmail.com wrote: From: Thierry Reding tred...@nvidia.com This commit introduces a generic device tree binding for IOMMU devices. Only a very minimal subset is described here, but it is enough to cover the requirements of both the

Re: [PATCH] iommu: msm: use devm_ioremap_resource to simplify code

2014-05-30 Thread Joerg Roedel
On Tue, May 27, 2014 at 06:18:42PM +0800, Kefeng Wang wrote: Use devm_ioremap_resource() to make the code simpler, drop unused variable, redundant return value check, and error-handing code. Signed-off-by: Kefeng Wang wangkefeng.w...@huawei.com --- drivers/iommu/msm_iommu_dev.c | 38

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

2014-05-30 Thread Arnd Bergmann
On Friday 30 May 2014 12:22:32 Dave Martin wrote: + +Examples: += + +Single-master IOMMU: + + + iommu { + #address-cells = 0; + #size-cells = 0; + }; + + master { + iommus = /iommu; + }; +

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

2014-05-30 Thread Arnd Bergmann
On Friday 30 May 2014 08:16:05 Rob Herring wrote: On Fri, May 23, 2014 at 3:33 PM, Thierry Reding thierry.red...@gmail.com wrote: From: Thierry Reding tred...@nvidia.com +IOMMU master node: +== + +Devices that access memory through an IOMMU are called masters. A device

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

2014-05-30 Thread Rob Herring
On Fri, May 30, 2014 at 2:06 PM, Arnd Bergmann a...@arndb.de wrote: On Friday 30 May 2014 08:16:05 Rob Herring wrote: On Fri, May 23, 2014 at 3:33 PM, Thierry Reding thierry.red...@gmail.com wrote: From: Thierry Reding tred...@nvidia.com +IOMMU master node: +== +

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

2014-05-30 Thread Arnd Bergmann
On Friday 30 May 2014 14:31:55 Rob Herring wrote: On Fri, May 30, 2014 at 2:06 PM, Arnd Bergmann a...@arndb.de wrote: On Friday 30 May 2014 08:16:05 Rob Herring wrote: On Fri, May 23, 2014 at 3:33 PM, Thierry Reding thierry.red...@gmail.com wrote: From: Thierry Reding tred...@nvidia.com