linux-kernel - [Patch v4 6/7] dt-bindings: soc: qcom: Extend RPMh power controller binding to describe thermal warming device

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Date:   Wed, 20 Nov 2019 07:56:32 -0500
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     edubezval@...il.com, rui.zhang@...el.com, ulf.hansson@...aro.org,
        daniel.lezcano@...aro.org, bjorn.andersson@...aro.org,
        agross@...nel.org
Cc:     amit.kucheria@...durent.com, mark.rutland@....com,
        rjw@...ysocki.net, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [Patch v4 6/7] dt-bindings: soc: qcom: Extend RPMh power controller binding to describe thermal warming device

RPMh power controller hosts mx domain that can be used as thermal warming
device. Add #cooling-cells property to the power domain provider node to
indicate this.

Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
---
v3->v4:
	- Removed subnode to indicate that mx power domain is a warming
	  device. Instead #cooling-cells is used as a power domain
	  provider property to indicate if the provider hosts a power
	  domain that can be used as a warming device.

 Documentation/devicetree/bindings/power/qcom,rpmpd.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/power/qcom,rpmpd.txt b/Documentation/devicetree/bindings/power/qcom,rpmpd.txt
index bc75bf4..a193d33 100644
--- a/Documentation/devicetree/bindings/power/qcom,rpmpd.txt
+++ b/Documentation/devicetree/bindings/power/qcom,rpmpd.txt
@@ -19,6 +19,11 @@ Required Properties:
 Refer to <dt-bindings/power/qcom-rpmpd.h> for the level values for
 various OPPs for different platforms as well as Power domain indexes
 
+Optional Properties
+ - #cooling-cells: must be 2
+	RPMh also hosts power domains that can behave as thermal warming
+	device. If so, indicate this by specifying #cooling-cells.
+
 Example: rpmh power domain controller and OPP table
 
 #include <dt-bindings/power/qcom-rpmhpd.h>
-- 
2.1.4