diff options
Diffstat (limited to 'Documentation/devicetree/bindings/firmware')
| -rw-r--r-- | Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 48 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/firmware/qcom,scm.yaml | 7 |
2 files changed, 45 insertions, 10 deletions
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 2f7c51c75e85..5824c43e9893 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -56,17 +56,38 @@ properties: description: Specifies the mailboxes used to communicate with SCMI compliant firmware. - items: - - const: tx - - const: rx + oneOf: + - items: + - const: tx + - const: rx + minItems: 1 + - items: + - const: tx + - const: tx_reply + - const: rx + minItems: 2 mboxes: description: List of phandle and mailbox channel specifiers. It should contain - exactly one or two mailboxes, one for transmitting messages("tx") - and another optional for receiving the notifications("rx") if supported. + exactly one, two or three mailboxes; the first one or two for transmitting + messages ("tx") and another optional ("rx") for receiving notifications + and delayed responses, if supported by the platform. + The number of mailboxes needed for transmitting messages depends on the + type of channels exposed by the specific underlying mailbox controller; + one single channel descriptor is enough if such channel is bidirectional, + while two channel descriptors are needed to represent the SCMI ("tx") + channel if the underlying mailbox channels are of unidirectional type. + The effective combination in numbers of mboxes and shmem descriptors let + the SCMI subsystem determine unambiguosly which type of SCMI channels are + made available by the underlying mailbox controller and how to use them. + 1 mbox / 1 shmem => SCMI TX over 1 mailbox bidirectional channel + 2 mbox / 2 shmem => SCMI TX and RX over 2 mailbox bidirectional channels + 2 mbox / 1 shmem => SCMI TX over 2 mailbox unidirectional channels + 3 mbox / 2 shmem => SCMI TX and RX over 3 mailbox unidirectional channels + Any other combination of mboxes and shmem is invalid. minItems: 1 - maxItems: 2 + maxItems: 3 shmem: description: @@ -228,13 +249,20 @@ $defs: maxItems: 1 mbox-names: - items: - - const: tx - - const: rx + oneOf: + - items: + - const: tx + - const: rx + minItems: 1 + - items: + - const: tx + - const: tx_reply + - const: rx + minItems: 2 mboxes: minItems: 1 - maxItems: 2 + maxItems: 3 shmem: minItems: 1 diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml index a66e99812b1f..367d04ad1923 100644 --- a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml @@ -24,9 +24,11 @@ properties: - qcom,scm-apq8064 - qcom,scm-apq8084 - qcom,scm-ipq4019 + - qcom,scm-ipq5332 - qcom,scm-ipq6018 - qcom,scm-ipq806x - qcom,scm-ipq8074 + - qcom,scm-ipq9574 - qcom,scm-mdm9607 - qcom,scm-msm8226 - qcom,scm-msm8660 @@ -38,10 +40,12 @@ properties: - qcom,scm-msm8994 - qcom,scm-msm8996 - qcom,scm-msm8998 + - qcom,scm-qcm2290 - qcom,scm-qdu1000 - qcom,scm-sa8775p - qcom,scm-sc7180 - qcom,scm-sc7280 + - qcom,scm-sc8180x - qcom,scm-sc8280xp - qcom,scm-sdm670 - qcom,scm-sdm845 @@ -107,6 +111,7 @@ allOf: - qcom,scm-msm8960 - qcom,scm-msm8974 - qcom,scm-msm8976 + - qcom,scm-qcm2290 - qcom,scm-sm6375 then: required: @@ -125,6 +130,7 @@ allOf: - qcom,scm-apq8064 - qcom,scm-msm8660 - qcom,scm-msm8960 + - qcom,scm-qcm2290 - qcom,scm-sm6375 then: properties: @@ -166,6 +172,7 @@ allOf: compatible: contains: enum: + - qcom,scm-qdu1000 - qcom,scm-sm8450 - qcom,scm-sm8550 then: |