Messages in this thread Patch in this message | | | From | Guru Das Srinagesh <> | Subject | [PATCH 1/5] dt-bindings: firmware: qcom-scm: Add "allow-multi-call" property | Date | Mon, 27 Jun 2022 12:44:32 -0700 |
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For firmware that supports it, allow multiple SCM calls to be passed down to it by removing the serialization lock in the SCM driver.
There is a patch already [1] to convert the bindings to YAML. I will make a patch against it when it gets accepted.
[1] https://lore.kernel.org/linux-arm-msm/20220626183247.142776-3-david@ixit.cz/
Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com> --- Documentation/devicetree/bindings/firmware/qcom,scm.txt | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt index 0f4e5ab..8a68018 100644 --- a/Documentation/devicetree/bindings/firmware/qcom,scm.txt +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.txt @@ -43,6 +43,8 @@ Required properties: clock and "bus" for the bus clock per the requirements of the compatible. - qcom,dload-mode: phandle to the TCSR hardware block and offset of the download mode control register (optional) +- allow-multi-call: Specify this to remove SCM call serialization. Need to + ensure that the firmware being used supports this. Example for MSM8916: -- 2.7.4
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