diff options
| author | Prakash Gupta <guptap@codeaurora.org> | 2017-05-16 12:13:02 +0530 |
|---|---|---|
| committer | Prakash Gupta <guptap@codeaurora.org> | 2017-06-05 10:42:56 +0530 |
| commit | 65f095ea8ff1d62f93a13a2c65fefd985a9951cb (patch) | |
| tree | b05269aa960ee369067e98c62b9667db660be47c /Documentation | |
| parent | a62f42964d5606a6ef123f4608f6cb5241598c25 (diff) | |
iommu/arm-smmu: Add support for regulator deferred disable
In case of unmap call, regulator is enabled/disabled. This may introduce
additional delay. For clients who do not detach, it's not possible to keep
regulator vote while smmu is attached.
Add support for regulator deferred disable. The time delay for deferred
disable can be set using dt property qcom,deferred-regulator-disable-delay
in ms.
Change-Id: I462e1999bd81f6332169b24749632d7b247c75c5
Signed-off-by: Prakash Gupta <guptap@codeaurora.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/iommu/arm,smmu.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt index 9e512d1ea763..c16084a89ccf 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt @@ -121,6 +121,12 @@ conditions. supported as we are directly comparing client SID with ID bits of SMR registers. +- qcom,deferred-regulator-disable-delay : The time delay for deferred regulator + disable in ms. In case of unmap call, regulator is + enabled/disabled. This may introduce additional delay. For + clients who do not detach, it's not possible to keep regulator + vote while smmu is attached. Type is <u32>. + - clocks : List of clocks to be used during SMMU register access. See Documentation/devicetree/bindings/clock/clock-bindings.txt for information about the format. For each clock specified |