bindings/regulator/rohm%2Cbd71847-regulator.yaml

1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/rohm,bd71847-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ROHM BD71847 and BD71850 Power Management Integrated Circuit regulators
10   - Matti Vaittinen <mazziesaccount@gmail.com>
13   List of regulators provided by this controller. BD71847 regulators node
14   should be sub node of the BD71847 MFD node. See BD71847 MFD bindings at
15   Documentation/devicetree/bindings/mfd/rohm,bd71847-pmic.yaml
20   Note that if BD71847 starts at RUN state you probably want to use
21   regulator-boot-on at least for BUCK5. LDO6 is supplied by it and it must
23   voltage monitoring for LDO5/LDO6 can cause PMIC to reset.
25 # The valid names for BD71847 regulator nodes are:
30   "^LDO[1-6]$":
37       regulator-name:
38         pattern: "^ldo[1-6]$"
44   "^BUCK[1-6]$":
51       regulator-name:
52         pattern: "^buck[1-6]$"
56       rohm,dvs-run-voltage:
61           PMIC default "RUN" state voltage in uV. See below table for
64       rohm,dvs-idle-voltage:
69           PMIC default "IDLE" state voltage in uV. See below table for
72       rohm,dvs-suspend-voltage:
77           PMIC default "SUSPEND" state voltage in uV. See below table for
82         # BD71847:
83         # buck | dvs-run-voltage | dvs-idle-voltage | dvs-suspend-voltage
84         # ----------------------------------------------------------------
86         # ----------------------------------------------------------------
88         # ----------------------------------------------------------------
91       # BD718(47/50) power outputs can either be controlled by the PMIC internal
94       # PMIC HW state machine) - then you should set this property.
96       # regulator (other than invoking a PMIC state change).
97       rohm,no-regulator-enable-control:
100           PMIC hardware state machine.
105       # connected to feedback-pin (over suitable resistors) is getting popular
113       # |---------------|
114       # |       buck 8  |-------+----->Vout
116       # |---------------|       |
119       #        +-------+--R2----+
123       #        V FB-pull-up
127       # Vout_o = Vo - (Vpu - Vo)*R2/R1
133       # Vpu is the pull-up voltage V FB-pull-up in the picture
136       rohm,fb-pull-up-microvolt:
138           Feedback-pin has pull-up connection to adjust voltage range. This is
139           the used pull-up voltage before R1.
141       rohm,feedback-pull-up-r1-ohms:
143           Feedback-pin has pull-up connection to adjust voltage range. This is
146       rohm,feedback-pull-up-r2-ohms:
148           Feedback-pin has pull-up connection to adjust voltage range. This is
152       - regulator-name