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[v3,5/5] DT/arm,gic-v3: add collections-reset-on-suspend property

Message ID 20180130010007.256564-6-dbasehore@chromium.org (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Derek Basehore Jan. 30, 2018, 1 a.m. UTC 
This boolean property for the GIC-V3-ITS enables resending the MAP
COLLECTIONS commands when resuming for when the state is reset on
suspend.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
---
 Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
index a470147d4f14..adb958e046d2 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
@@ -81,6 +81,10 @@  Optional:
 - reset-on-suspend: Boolean property. Indicates that the ITS state is
   reset on suspend. The state is then saved on suspend and restored on
   resume.
+- collections-reset-on-suspend : Boolean property. If the collections for the
+  ITS are stored internally instead of externally, the state will be lost if the
+  GIC loses power. Setting this enables the kernel to reset the collections
+  state on resume for this ITS node.
 
 The main GIC node must contain the appropriate #address-cells,
 #size-cells and ranges properties for the reg property of all ITS