Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-05-15 Thread Cho KyongHo
On Thu, 15 May 2014 22:37:31 +0200, Thierry Reding wrote: > On Mon, Apr 28, 2014 at 02:05:30PM +0200, Arnd Bergmann wrote: > [...] > > let me clarify by example: > > > > iommu@1 { > > compatible = "some,simple-iommu"; > > reg = <1>; > > #iommu-cells = <0>; /

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-05-15 Thread Thierry Reding
On Mon, Apr 28, 2014 at 02:05:30PM +0200, Arnd Bergmann wrote: [...] > let me clarify by example: > > iommu@1 { > compatible = "some,simple-iommu"; > reg = <1>; > #iommu-cells = <0>; /* supports only one master */ > }; > > iommu@2 { >

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-28 Thread Stephen Warren
On 04/28/2014 05:18 AM, Thierry Reding wrote: > On Mon, Apr 28, 2014 at 12:56:03PM +0200, Arnd Bergmann wrote: ... >> A lot of drivers probably only support one >> master, so they can just set #iommu-cells=<0>, others might require >> IDs that do not fit into one cell. > > You mean "#iommu-cells =

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-28 Thread Thierry Reding
On Mon, Apr 28, 2014 at 02:05:30PM +0200, Arnd Bergmann wrote: > On Monday 28 April 2014 13:18:03 Thierry Reding wrote: > > On Mon, Apr 28, 2014 at 12:56:03PM +0200, Arnd Bergmann wrote: > > > On Monday 28 April 2014 12:39:20 Thierry Reding wrote: > > > > And possibly with a iommu-names property to

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-28 Thread Arnd Bergmann
On Monday 28 April 2014 13:18:03 Thierry Reding wrote: > On Mon, Apr 28, 2014 at 12:56:03PM +0200, Arnd Bergmann wrote: > > On Monday 28 April 2014 12:39:20 Thierry Reding wrote: > > > And possibly with a iommu-names property to go along with that. The idea > > > being that a device can be a master

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-28 Thread Thierry Reding
On Mon, Apr 28, 2014 at 12:56:03PM +0200, Arnd Bergmann wrote: > On Monday 28 April 2014 12:39:20 Thierry Reding wrote: > > On Sun, Apr 27, 2014 at 08:23:06PM +0200, Arnd Bergmann wrote: > > > On Sunday 27 April 2014 13:07:43 Shaik Ameer Basha wrote: > > > > +- mmu-masters: A phandle to device node

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-28 Thread Arnd Bergmann
On Monday 28 April 2014 12:39:20 Thierry Reding wrote: > On Sun, Apr 27, 2014 at 08:23:06PM +0200, Arnd Bergmann wrote: > > On Sunday 27 April 2014 13:07:43 Shaik Ameer Basha wrote: > > > +- mmu-masters: A phandle to device nodes representing the master for > > > which > > > + the Sy

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-28 Thread Thierry Reding
On Sun, Apr 27, 2014 at 08:23:06PM +0200, Arnd Bergmann wrote: > On Sunday 27 April 2014 13:07:43 Shaik Ameer Basha wrote: > > +- mmu-masters: A phandle to device nodes representing the master for which > > + the System MMU can provide a translation. Any additional > > values > > +

Re: [PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-27 Thread Arnd Bergmann
On Sunday 27 April 2014 13:07:43 Shaik Ameer Basha wrote: > +- mmu-masters: A phandle to device nodes representing the master for which > + the System MMU can provide a translation. Any additional > values > + after the phandle will be ignored because a System MMU never

[PATCH v12 11/31] documentation: iommu: add binding document of Exynos System MMU

2014-04-27 Thread Shaik Ameer Basha
From: Cho KyongHo This patch adds a description of the device tree binding for the Samsung Exynos System MMU. Signed-off-by: Cho KyongHo --- .../devicetree/bindings/iommu/samsung,sysmmu.txt | 79 1 file changed, 79 insertions(+) create mode 100644 Documentation/device