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From: Sibi Sankar <sibis@codeaurora.org>
To: mka@chromium.org, swboyd@chromium.org,
	bjorn.andersson@linaro.org, robh+dt@kernel.org
Cc: ulf.hansson@linaro.org, rjw@rjwysocki.net, agross@kernel.org,
	ohad@wizery.com, mathieu.poirier@linaro.org,
	linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	dianders@chromium.org, rishabhb@codeaurora.org,
	sidgup@codeaurora.org, Sibi Sankar <sibis@codeaurora.org>
Subject: [PATCH v5 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP property
Date: Thu, 19 Aug 2021 08:32:05 +0530	[thread overview]
Message-ID: <1629342136-3667-3-git-send-email-sibis@codeaurora.org> (raw)
In-Reply-To: <1629342136-3667-1-git-send-email-sibis@codeaurora.org>

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.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---

v5:
 * Fixup power-domain count. [Matthias]

 .../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


  parent reply	other threads:[~2021-08-19  3:03 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-19  3:02 [PATCH v5 00/13] Use qmp_send to update co-processor load state Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 01/13] dt-bindings: soc: qcom: aoss: Drop the load state power-domain Sibi Sankar
2021-08-19  3:02 ` Sibi Sankar [this message]
2021-08-19 18:55   ` [PATCH v5 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP property Stephen Boyd
2021-08-20 14:24     ` Sibi Sankar
2021-08-21 18:17       ` Stephen Boyd
2021-08-23 16:19         ` Sibi Sankar
2021-08-23 20:18           ` Stephen Boyd
2021-08-19  3:02 ` [PATCH v5 03/13] dt-bindings: remoteproc: qcom: " Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
2021-08-23 20:17   ` Stephen Boyd
2021-08-19  3:02 ` [PATCH v5 05/13] arm64: dts: qcom: sc7180: Use QMP property to control " Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 06/13] arm64: dts: qcom: sc7280: " Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 07/13] arm64: dts: qcom: sdm845: " Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 08/13] arm64: dts: qcom: sm8150: " Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 09/13] arm64: dts: qcom: sm8250: " Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 10/13] arm64: dts: qcom: sm8350: " Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 12/13] dt-bindings: msm/dp: Remove aoss-qmp header Sibi Sankar
2021-08-19  3:02 ` [PATCH v5 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar

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