linux-kernel - [PATCH v4 1/6] dt-bindings: ROHM BD96801 PMIC regulators

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Message-ID: <7bdc1e2c5569dbe2babbce187b0093852fe392e0.1718356964.git.mazziesaccount@gmail.com>
Date: Fri, 14 Jun 2024 12:43:05 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Matti Vaittinen <mazziesaccount@...il.com>,
	Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Matti Vaittinen <mazziesaccount@...il.com>,
	Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: [PATCH v4 1/6] dt-bindings: ROHM BD96801 PMIC regulators

ROHM BD96801 is a highly configurable automotive grade PMIC. Introduce
DT bindings for the BD96801 regulators.

Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>

---
Revision history:
v2 =>
    - No changes

v1 => v2:
    - use lowercase node names in example
    - drop unneeded '|' from description

RFCv2 => v1
    - Drop regulator-name pattern requirement
    - do not require regulator-name
---
 .../regulator/rohm,bd96801-regulator.yaml     | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd96801-regulator.yaml

diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd96801-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd96801-regulator.yaml
new file mode 100644
index 000000000000..b3d2d7d583ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/rohm,bd96801-regulator.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/rohm,bd96801-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD96801 Power Management Integrated Circuit regulators
+
+maintainers:
+  - Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
+
+description:
+  This module is part of the ROHM BD96801 MFD device. For more details
+  see Documentation/devicetree/bindings/mfd/rohm,bd96801-pmic.yaml.
+
+  The regulator controller is represented as a sub-node of the PMIC node
+  on the device tree.
+
+  Regulator nodes should be named to buck_<number> and ldo_<number>.
+  The valid names for BD96801 regulator nodes are
+  buck1, buck2, buck3, buck4, ldo5, ldo6, ldo7
+
+patternProperties:
+  "^ldo[5-7]$":
+    type: object
+    description:
+      Properties for single LDO regulator.
+    $ref: regulator.yaml#
+
+    properties:
+      rohm,initial-voltage-microvolt:
+        description:
+          Initial voltage for regulator. Voltage can be tuned +/-150 mV from
+          this value. NOTE, This can be modified via I2C only when PMIC is in
+          STBY state.
+        minimum: 300000
+        maximum: 3300000
+
+    unevaluatedProperties: false
+
+  "^buck[1-4]$":
+    type: object
+    description:
+      Properties for single BUCK regulator.
+    $ref: regulator.yaml#
+
+    properties:
+      rohm,initial-voltage-microvolt:
+        description:
+          Initial voltage for regulator. Voltage can be tuned +/-150 mV from
+          this value. NOTE, This can be modified via I2C only when PMIC is in
+          STBY state.
+        minimum: 500000
+        maximum: 3300000
+
+      rohm,keep-on-stby:
+        description:
+          Keep the regulator powered when PMIC transitions to STBY state.
+        type: boolean
+
+    unevaluatedProperties: false
+
+additionalProperties: false
-- 
2.45.1


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =] 

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