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From: Sibi Sankar <sibis@codeaurora.org>
To: bjorn.andersson@linaro.org, mathieu.poirier@linaro.org,
	robh+dt@kernel.org, swboyd@chromium.org
Cc: ulf.hansson@linaro.org, rjw@rjwysocki.net, agross@kernel.org,
	ohad@wizery.com, 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 v2 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings
Date: Mon,  7 Jun 2021 21:09:20 +0530	[thread overview]
Message-ID: <1623080372-13521-2-git-send-email-sibis@codeaurora.org> (raw)
In-Reply-To: <1623080372-13521-1-git-send-email-sibis@codeaurora.org>

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@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.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@c300000 {
 	  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


  reply	other threads:[~2021-06-07 15:40 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-07 15:39 [PATCH v2 00/13] Use qmp_send to update co-processor load state Sibi Sankar
2021-06-07 15:39 ` Sibi Sankar [this message]
2021-06-18 20:19   ` [PATCH v2 01/13] dt-bindings: soc: qcom: aoss: Drop power-domain bindings Rob Herring
2021-06-07 15:39 ` [PATCH v2 02/13] dt-bindings: remoteproc: qcom: pas: Add QMP bindings Sibi Sankar
2021-06-18 20:25   ` Rob Herring
2021-06-22  7:23     ` Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 03/13] dt-bindings: remoteproc: qcom: " Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 04/13] remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 05/13] arm64: dts: qcom: sc7180: Use QMP binding to control " Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 06/13] arm64: dts: qcom: sc7280: " Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 07/13] arm64: dts: qcom: sdm845: " Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 08/13] arm64: dts: qcom: sm8150: " Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 09/13] arm64: dts: qcom: sm8250: " Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 10/13] arm64: dts: qcom: sm8350: " Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 11/13] soc: qcom: aoss: Drop power domain support Sibi Sankar
2021-06-07 15:39 ` [PATCH v2 12/13] dt-bindings: msm/dp: Remove aoss-qmp header Sibi Sankar
2021-06-18 20:25   ` Rob Herring
2021-06-07 15:39 ` [PATCH v2 13/13] dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions Sibi Sankar

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