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Message-ID: <3ca03c3b76d6898c46ee645ddb5fa25cbfc62367.1610110144.git.matti.vaittinen@fi.rohmeurope.com>
Date: Fri, 8 Jan 2021 15:36:38 +0200
From: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To: matti.vaittinen@...rohmeurope.com, mazziesaccount@...il.com
Cc: Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
Linus Walleij <linus.walleij@...aro.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-power@...rohmeurope.com, linux-gpio@...r.kernel.org
Subject: [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC
regulators
Add binding documentation for regulators on ROHM BD71815 PMIC.
5 bucks, 7 LDOs and a boost for LED.
Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
---
.../regulator/rohm,bd71815-regulator.yaml | 104 ++++++++++++++++++
1 file changed, 104 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
new file mode 100644
index 000000000000..2aa21603698c
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/rohm,bd71815-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD71815 Power Management Integrated Circuit regulators
+
+maintainers:
+ - Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
+
+description: |
+ This module is part of the ROHM BD718215 MFD device. For more details
+ see Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml.
+
+ The regulator controller is represented as a sub-node of the PMIC node
+ on the device tree.
+
+ The valid names for BD71815 regulator nodes are
+ buck1, buck2, buck3, buck4, buck5,
+ ldo1, ldo2, ldo3, ldo4, ldo5,
+ ldodvref, ldolpsr, wled
+
+patternProperties:
+ "^(ldo|buck)[1-5]$":
+ type: object
+ description:
+ Properties for single LDO/BUCK regulator.
+ $ref: regulator.yaml#
+
+ properties:
+ regulator-name:
+ pattern: "^(ldo|buck)[1-5]$"
+ description:
+ should be "ldo1", ..., "ldo5" and "buck1", ..., "buck5"
+
+ rohm,vsel-gpios:
+ description:
+ GPIO used to control ldo4 state (when ldo4 is controlled by GPIO).
+
+ rohm,dvs-run-voltage:
+ description:
+ PMIC "RUN" state voltage in uV when PMIC HW states are used. See
+ comments below for bucks/LDOs which support this. 0 means
+ regulator should be disabled at RUN state.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ rohm,dvs-snvs-voltage:
+ description:
+ Whether to keep regulator enabled at "SNVS" state or not.
+ 0 means regulator should be disabled at SNVS state, non zero voltage
+ keeps regulator enabled. BD71815 does not change voltage level
+ when PMIC transitions to SNVS.SNVS voltage depends on the previous
+ state (from which the PMIC transitioned to SNVS).
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ rohm,dvs-suspend-voltage:
+ description:
+ PMIC "SUSPEND" state voltage in uV when PMIC HW states are used. See
+ comments below for bucks/LDOs which support this. 0 means
+ regulator should be disabled at SUSPEND state.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ rohm,dvs-lpsr-voltage:
+ description:
+ PMIC "LPSR" state voltage in uV when PMIC HW states are used. See
+ comments below for bucks/LDOs which support this. 0 means
+ regulator should be disabled at LPSR state.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ # Bucks 1 and 2 support giving separate voltages for operational states
+ # (RUN /CLEAN according to data-sheet) and non operational states
+ # (LPSR/SUSPEND). The voltage is automatically changed when HW
+ # state changes. Omitting these properties from bucks 1 and 2 leave
+ # buck voltages to not be toggled by HW state. Enable status may still
+ # be toggled by state changes depending on HW default settings.
+ #
+ # Bucks 3-5 and ldos 1-5 support setting the RUN state voltage here.
+ # Given RUN voltage is used at all states if regulator is enabled at
+ # given state.
+ # Values given for other states are regarded as enable/disable at
+ # given state (see below).
+ #
+ # All regulators except WLED support specifying enable/disable status
+ # for each of the HW states (RUN/SNVS/SUSPEND/LPSR). HW defaults can
+ # be overridden by setting voltage to 0 (regulator disabled at given
+ # state) or non-zero (regulator enabled at given state). Please note
+ # that setting non zero voltages for bucks 1/2 will also enable voltage
+ # changes according to state change.
+
+ required:
+ - regulator-name
+
+ unevaluatedProperties: false
+
+additionalProperties: false
--
2.25.4
--
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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