linux-kernel - [PATCH v2 1/2] dt-bindings: Add power-efuse binding

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Message-Id: <20220308011811.10353-2-zev@bewilderbeest.net>
Date:   Mon,  7 Mar 2022 17:18:09 -0800
From:   Zev Weiss <zev@...ilderbeest.net>
To:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Cc:     Zev Weiss <zev@...ilderbeest.net>, openbmc@...ts.ozlabs.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>
Subject: [PATCH v2 1/2] dt-bindings: Add power-efuse binding

This can be used to describe a power output supplied by a regulator
device that the system controls.

Signed-off-by: Zev Weiss <zev@...ilderbeest.net>
---
 .../devicetree/bindings/misc/power-efuse.yaml | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/power-efuse.yaml

diff --git a/Documentation/devicetree/bindings/misc/power-efuse.yaml b/Documentation/devicetree/bindings/misc/power-efuse.yaml
new file mode 100644
index 000000000000..5f8f0b21af0e
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/power-efuse.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/power-efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic power efuse device
+
+maintainers:
+  - Zev Weiss <zev@...ilderbeest.net>
+
+description: |
+  This binding describes a physical power output supplied by a
+  regulator providing efuse functionality (manual on/off control, and
+  auto-shutoff if current, voltage, or thermal limits are exceeded).
+
+  These may be found on systems such as "smart" network PDUs, and
+  typically supply power to devices entirely separate from the system
+  described by the device-tree by way of an external connector such as
+  an Open19 power cable:
+
+  https://www.open19.org/marketplace/coolpower-cable-assembly-8ru/
+
+properties:
+  compatible:
+    const: power-efuse
+
+  vout-supply:
+    description:
+      phandle to the regulator providing power for the efuse
+
+  error-flags-cache-ttl-ms:
+    description:
+      The number of milliseconds the vout-supply regulator's error
+      flags should be cached before re-fetching them.
+
+required:
+  - compatible
+  - vout-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    efuse {
+        compatible = "power-efuse";
+        vout-supply = <&efuse_reg>;
+        error-flags-cache-ttl-ms = <500>;
+    };
-- 
2.35.1