From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Thu, 30 Jan 2014 20:17:52 +0000 (+0000)
Subject: documentation/iommu: update description of ARM System MMU binding
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0c9d70d72453036195682e64efce77872e9f268b;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

documentation/iommu: update description of ARM System MMU binding

This patch adds descriptions for new properties of the device tree
binding for the ARM SMMU architecture. These properties control
arm-smmu driver options.

Cc: Grant Likely <grant.likely@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
[will: removed device isolation property, as this has been dropped and
       fixed up spacing in documentation]
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
index e34c6cdd8ba8..f284b99402bc 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
@@ -48,6 +48,12 @@ conditions.
                   from the mmu-masters towards memory) node for this
                   SMMU.
 
+- calxeda,smmu-secure-config-access : Enable proper handling of buggy
+                  implementations that always use secure access to
+                  SMMU configuration registers. In this case non-secure
+                  aliases of secure registers have to be used during
+                  SMMU configuration.
+
 Example:
 
         smmu {