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Date: Mon, 7 Jun 2021 21:09:20 +0530 From: Sibi Sankar <sibis@...eaurora.org> To: bjorn.andersson@...aro.org, mathieu.poirier@...aro.org, robh+dt@...nel.org, swboyd@...omium.org Cc: ulf.hansson@...aro.org, rjw@...ysocki.net, agross@...nel.org, ohad@...ery.com, linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, dianders@...omium.org, rishabhb@...eaurora.org, sidgup@...eaurora.org, Sibi Sankar <sibis@...eaurora.org> Subject: [PATCH v2 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings The power-domains exposed by AOSS QMP node are used to notify the Always on Subsystem (AOSS) that a particular co-processor is up/down. These 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 power-domain bindings and replace them with generic qmp_send interface instead. Signed-off-by: Sibi Sankar <sibis@...eaurora.org> Reviewed-by: Stephen Boyd <swboyd@...omium.org> --- v2: * Commit message update [Rob] .../devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt index 783dc81b0f26..c0ae051a5b76 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt @@ -9,8 +9,7 @@ Messaging Protocol (QMP) The AOSS side channel exposes control over a set of resources, used to control a set of debug related clocks and to affect the low power state of resources -related to the secondary subsystems. These resources are exposed as a set of -power-domains. +related to the secondary subsystems. - compatible: Usage: required @@ -46,14 +45,6 @@ power-domains. Definition: must be 0 The single clock represents the QDSS clock. -- #power-domain-cells: - Usage: optional - Value type: <u32> - Definition: must be 1 - The provided power-domains are: - CDSP state (0), LPASS state (1), modem state (2), SLPI - state (3), SPSS state (4) and Venus state (5). - = SUBNODES The AOSS side channel also provides the controls for three cooling devices, these are expressed as subnodes of the QMP node. The name of the node is used @@ -66,8 +57,7 @@ to identify the resource and must therefor be "cx", "mx" or "ebi". = EXAMPLE -The following example represents the AOSS side-channel message RAM and the -mechanism exposing the power-domains, as found in SDM845. +The following example represents the AOSS side-channel message RAM as found in SDM845. aoss_qmp: qmp@...0000 { compatible = "qcom,sdm845-aoss-qmp"; @@ -75,8 +65,6 @@ mechanism exposing the power-domains, as found in SDM845. interrupts = <GIC_SPI 389 IRQ_TYPE_EDGE_RISING>; mboxes = <&apss_shared 0>; - #power-domain-cells = <1>; - cx_cdev: cx { #cooling-cells = <2>; }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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