linux-kernel - [PATCH v3 2/3] Documentation: DT: binding documentation for regulator-poweroff

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Message-Id: <20201207142756.17819-3-michael@fossekall.de>
Date:   Mon,  7 Dec 2020 15:27:55 +0100
From:   Michael Klein <michael@...sekall.de>
To:     Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Michael Klein <michael@...sekall.de>
Cc:     linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 2/3] Documentation: DT: binding documentation for regulator-poweroff

Add devicetree binding documentation for regulator-poweroff driver.

Signed-off-by: Michael Klein <michael@...sekall.de>
---
 .../power/reset/regulator-poweroff.yaml       | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml

diff --git a/Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml b/Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml
new file mode 100644
index 000000000000..8c8ce6bb031a
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/reset/regulator-poweroff.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Force-disable power regulators to turn the power off.
+
+maintainers:
+  - Michael Klein <michael@...sekall.de>
+
+description: |
+  When the power-off handler is called, one more regulators are disabled
+  by calling regulator_force_disable(). If the power is still on and the
+  CPU still running after a 3000ms delay, a WARN_ON(1) is emitted.
+
+properties:
+  compatible:
+    const: "regulator-poweroff"
+
+  regulator-names:
+    description:
+      Array of regulator names
+    $ref: /schemas/types.yaml#/definitions/string-array
+
+  REGULATOR-supply:
+    description:
+      For any REGULATOR listed in regulator-names, a phandle
+      to the corresponding regulator node
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  timeout-ms:
+    description:
+      Time to wait before asserting a WARN_ON(1). If nothing is
+      specified, 3000 ms is used.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+  - compatible
+  - regulator-names
+  - REGULATOR-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    regulator-poweroff {
+        compatible = "regulator-poweroff";
+        regulator-names = "vcc1v2", "vcc-dram";
+        vcc1v2-supply = <&reg_vcc1v2>;
+        vcc-dram-supply = <&reg_vcc_dram>;
+    };
+...
-- 
2.29.2