linux-kernel - [PATCH 1/2] dt-bingings:arm:sunplus:add sp7021 compatible string to sunplus,idle-state.yaml

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Message-Id: <5d2231d33d647d24d2b95c9f652687f7f1dccd2d.1636356928.git.edwin.chiu@sunplus.com>
Date:   Mon,  8 Nov 2021 15:55:09 +0800
From:   Edwin chiu <edwinchiu0505tw@...il.com>
To:     robh+dt@...nel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, rafael@...nel.org,
        daniel.lezcano@...aro.org, linux-pm@...r.kernel.org
Cc:     Edwin chiu <edwin.chiu@...plus.com>
Subject: [PATCH 1/2] dt-bingings:arm:sunplus:add sp7021 compatible string to sunplus,idle-state.yaml

Add the compatible string for cpuidle state on sp7021

Signed-off-by: Edwin chiu <edwin.chiu@...plus.com>
---
 .../bindings/arm/sunplus/sunplus,idle-state.yaml   | 55 ++++++++++++++++++++++
 MAINTAINERS                                        |  6 +++
 2 files changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/sunplus/sunplus,idle-state.yaml

diff --git a/Documentation/devicetree/bindings/arm/sunplus/sunplus,idle-state.yaml b/Documentation/devicetree/bindings/arm/sunplus/sunplus,idle-state.yaml
new file mode 100644
index 0000000..649e953
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/sunplus/sunplus,idle-state.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/sunplus/sunplus,idle-state.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus cpuidle state
+
+maintainers:
+  - edwin.chiu <edwin.chiu@...plus.com>
+
+description: |
+  Sunplus SOC cpuidle state
+
+properties:
+  compatible:
+    const: arm,idle-state
+
+  entry-latency-us:
+    description:
+      Worst case latency in microseconds required to enter the idle state.
+
+  exit-latency-us:
+    description:
+      Worst case latency in microseconds required to exit the idle state.
+      The exit-latency-us duration may be guaranteed only after
+      entry-latency-us has passed.
+
+  min-residency-us:
+    description:
+      Minimum residency duration in microseconds, inclusive of preparation
+      and entry, for this idle state to be considered worthwhile energy wise
+      (refer to section 2 of this document for a complete description).
+
+required:
+  - compatible
+  - entry-latency-us
+  - exit-latency-us
+  - min-residency-us
+
+additionalProperties: true
+
+examples:
+  - |
+    idle-states {
+      CLUSTER_SLEEP_BIG: cluster-sleep-big {
+        compatible = "arm,idle-state";
+        entry-latency-us = <8000>;
+        exit-latency-us = <700>;
+        min-residency-us = <9000>;
+      };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 3b79fd4..52f17ec 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17945,6 +17945,12 @@ L:	netdev@...r.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/dlink/sundance.c
 
+SUNPLUS CPUIDLE DRIVER
+M:	Edwin Chiu <edwin.chiu@...plus.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/arm/sunplus/sunplus,idle-state.yaml
+
+
 SUPERH
 M:	Yoshinori Sato <ysato@...rs.sourceforge.jp>
 M:	Rich Felker <dalias@...c.org>
-- 
2.7.4