From 9164d2be21d42a0263b80af709fa40879c7f52be Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Mon, 27 May 2024 14:54:51 +0200 Subject: [PATCH] dt-bindings: firmware: qcom,scm: add memory-region for sa8775p Document a new property (currently only for sa8775p) that describes the memory region reserved for communicating with the TrustZone. Signed-off-by: Bartosz Golaszewski Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20240527-shm-bridge-v10-1-ce7afaa58d3a@linaro.org Signed-off-by: Bjorn Andersson --- .../devicetree/bindings/firmware/qcom,scm.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml index 47d3d2d52acd2..2cc83771d8e70 100644 --- a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml @@ -93,6 +93,11 @@ properties: protocol to handle sleeping SCM calls. maxItems: 1 + memory-region: + description: + Phandle to the memory region reserved for the shared memory bridge to TZ. + maxItems: 1 + qcom,sdi-enabled: description: Indicates that the SDI (Secure Debug Image) has been enabled by TZ @@ -193,6 +198,16 @@ allOf: then: properties: interrupts: false + - if: + not: + properties: + compatible: + contains: + enum: + - qcom,scm-sa8775p + then: + properties: + memory-region: false required: - compatible