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authorAlex Elder <elder@linaro.org>2020-05-04 12:58:56 -0500
committerDavid S. Miller <davem@davemloft.net>2020-05-04 11:26:55 -0700
commit8456c54408a21cddc5c5a3b35d2e77ddd58d20bc (patch)
tree8fecf7d9a5bc4ef62556b561084840241a00e65d /Documentation
parentcad5eaf74f17049db21a90be9514cb920de5ba39 (diff)
downloadlinux-8456c54408a21cddc5c5a3b35d2e77ddd58d20bc.tar.bz2
dt-bindings: net: add IPA iommus property
The IPA accesses "IMEM" and main system memory through an SMMU, so its DT node requires an iommus property to define range of stream IDs it uses. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/net/qcom,ipa.yaml10
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
index 140f15245654..7b749fc04c32 100644
--- a/Documentation/devicetree/bindings/net/qcom,ipa.yaml
+++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
@@ -20,7 +20,10 @@ description:
The GSI is an integral part of the IPA, but it is logically isolated
and has a distinct interrupt and a separately-defined address space.
- See also soc/qcom/qcom,smp2p.txt and interconnect/interconnect.txt.
+ See also soc/qcom/qcom,smp2p.txt and interconnect/interconnect.txt. See
+ iommu/iommu.txt and iommu/arm,smmu.yaml for more information about SMMU
+ bindings.
+
- |
-------- ---------
@@ -54,6 +57,9 @@ properties:
- const: ipa-shared
- const: gsi
+ iommus:
+ maxItems: 1
+
clocks:
maxItems: 1
@@ -126,6 +132,7 @@ properties:
required:
- compatible
+ - iommus
- reg
- clocks
- interrupts
@@ -164,6 +171,7 @@ examples:
modem-init;
modem-remoteproc = <&mss_pil>;
+ iommus = <&apps_smmu 0x720 0x3>;
reg = <0 0x1e40000 0 0x7000>,
<0 0x1e47000 0 0x2000>,
<0 0x1e04000 0 0x2c000>;