The load state power-domain, used by the co-processors to notify the Always on Subsystem (AOSS) that a particular co-processor is up/down, suffers from the side-effect of changing states during suspend/resume. However the co-processors enter low-power modes independent to that of the application processor and their states are expected to remain unaltered across system suspend/resume cycles. To achieve this behavior let's drop the load state power-domain and replace them with the qmp property for all SoCs supporting low power mode signalling. Due to the current broken load state implementation, we can afford the binding breakage that ensues and the remoteproc functionality will remain the same when using newer kernels with older dtbs. Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx> Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx> --- v6: * Updated commit message to explain binding breakage. [Stephen] .../devicetree/bindings/remoteproc/qcom,adsp.yaml | 61 +++++++++++----------- 1 file changed, 31 insertions(+), 30 deletions(-) diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml index 0c112f3264a9..0d2b5bd4907a 100644 --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml @@ -93,6 +93,10 @@ properties: maxItems: 1 description: Reference to the reserved-memory for the Hexagon core + qcom,qmp: + $ref: /schemas/types.yaml#/definitions/phandle + description: Reference to the AOSS side-channel message RAM. + qcom,smem-states: $ref: /schemas/types.yaml#/definitions/phandle-array description: States used by the AP to signal the Hexagon core @@ -369,13 +373,11 @@ allOf: properties: power-domains: items: - - description: Load State power domain - description: CX power domain - description: MX power domain - description: MSS power domain power-domain-names: items: - - const: load_state - const: cx - const: mx - const: mss @@ -391,43 +393,20 @@ allOf: properties: power-domains: items: - - description: Load State power domain - description: CX power domain - power-domain-names: - items: - - const: load_state - - const: cx - if: properties: compatible: contains: enum: + - qcom,sdx55-mpss-pas - qcom,sm8150-mpss-pas - qcom,sm8350-mpss-pas then: properties: power-domains: items: - - description: Load State power domain - - description: CX power domain - - description: MSS power domain - power-domain-names: - items: - - const: load_state - - const: cx - - const: mss - - - if: - properties: - compatible: - contains: - enum: - - qcom,sdx55-mpss-pas - then: - properties: - power-domains: - items: - description: CX power domain - description: MSS power domain power-domain-names: @@ -451,12 +430,10 @@ allOf: properties: power-domains: items: - - description: Load State power domain - description: LCX power domain - description: LMX power domain power-domain-names: items: - - const: load_state - const: lcx - const: lmx @@ -470,12 +447,10 @@ allOf: properties: power-domains: items: - - description: Load State power domain - description: CX power domain - description: MXC power domain power-domain-names: items: - - const: load_state - const: cx - const: mxc @@ -511,6 +486,32 @@ allOf: - const: mss_restart - const: pdc_reset + - if: + properties: + compatible: + contains: + enum: + - qcom,sc7180-mpss-pas + - qcom,sc8180x-adsp-pas + - qcom,sc8180x-cdsp-pas + - qcom,sc8180x-mpss-pas + - qcom,sm8150-adsp-pas + - qcom,sm8150-cdsp-pas + - qcom,sm8150-mpss-pas + - qcom,sm8150-slpi-pas + - qcom,sm8250-adsp-pas + - qcom,sm8250-cdsp-pas + - qcom,sm8250-slpi-pas + - qcom,sm8350-adsp-pas + - qcom,sm8350-cdsp-pas + - qcom,sm8350-mpss-pas + - qcom,sm8350-slpi-pas + then: + properties: + qcom,qmp: + items: + - description: Reference to the AOSS side-channel message RAM. + examples: - | #include <dt-bindings/clock/qcom,rpmcc.h> -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project