linux-kernel - [PATCH v8 2/3] dt-bindings: arm: cpus: Document 'mediatek,freq-domain' property

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Date:   Mon, 26 Oct 2020 16:19:08 +0800
From:   Hector Yuan <hector.yuan@...iatek.com>
To:     <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Maxime Ripard <mripard@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Amit Kucheria <amit.kucheria@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Dave Gerlach <d-gerlach@...com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        <devicetree@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>, <wsd_upstream@...iatek.com>,
        <hector.yuan@...iatek.com>
Subject: [PATCH v8 2/3] dt-bindings: arm: cpus: Document 'mediatek,freq-domain' property

From: "Hector.Yuan" <hector.yuan@...iatek.com>

Add devicetree documentation for 'mediatek,freq-domain' property specific
to Mediatek CPUs. This property is used to reference the CPUFREQ node
along with the domain id.

Signed-off-by: Hector.Yuan <hector.yuan@...iatek.com>
---
 Documentation/devicetree/bindings/arm/cpus.yaml |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index 1222bf1..e995b26 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -255,6 +255,12 @@ properties:
 
       where voltage is in V, frequency is in MHz.
 
+  mediatek,freq-domain:
+    $ref: '/schemas/types.yaml#/definitions/phandle-array'
+    description:
+      CPUs supporting freq-domain must set their "mediatek,freq-domain" property
+      with phandle to a cpufreq_hw node followed by the domain id.
+
   power-domains:
     $ref: '/schemas/types.yaml#/definitions/phandle-array'
     description:
-- 
1.7.9.5