linux-kernel - [PATCH v1 3/6] dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW

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Date:   Fri, 23 Oct 2020 16:24:50 +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>,
        "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 v1 3/6] dt-bindings: cpufreq: add bindings for MediaTek cpufreq HW

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

Add devicetree bindings for MediaTek HW driver.

Signed-off-by: Hector.Yuan <hector.yuan@...iatek.com>
---
 .../bindings/cpufreq/cpufreq-mediatek-hw.yaml      |   46 ++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml

diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml
new file mode 100644
index 0000000..a99f44f
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cpufreq/cpufreq-mediatek-hw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek's CPUFREQ Bindings
+
+maintainers:
+  - Hector Yuan <hector.yuan@...iatek.com>
+
+description:
+  CPUFREQ HW is a hardware engine used by MediaTek
+  SoCs to manage frequency in hardware. It is capable of controlling frequency
+  for multiple clusters.
+
+properties:
+  compatible:
+    const: mediatek,cpufreq-hw
+
+  reg:
+    minItems: 1
+    maxItems: 2
+    description: |
+      Addresses and sizes for the memory of the HW bases in each frequency domain.
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        cpufreq_hw: cpufreq@...c00 {
+            compatible = "mediatek,cpufreq-hw";
+            reg = <0 0x11bc10 0 0x8c>,
+               <0 0x11bca0 0 0x8c>;
+        };
+    };
+
+
+
+
-- 
1.7.9.5