1 # SPDX-License-Identifier: GPL-2.0
4 $id: http://devicetree.org/schemas/regulator/fixed-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Fixed Voltage regulators
10 - Liam Girdwood <lgirdwood@gmail.com>
11 - Mark Brown <broonie@kernel.org>
14 Any property defined as part of the core regulator binding, defined in
15 regulator.yaml, can also be used. However a fixed voltage regulator is
16 expected to have the regulator-min-microvolt and regulator-max-microvolt
20 - $ref: regulator.yaml#
25 const: regulator-fixed-clock
33 const: regulator-fixed-domain
47 - regulator-fixed-clock
48 - regulator-fixed-domain
53 description: gpio to use for enable control
61 clock to use for enable control. This binding is only available if
62 the compatible is chosen to regulator-fixed-clock. The clock binding
63 is mandatory if compatible is chosen to regulator-fixed-clock.
69 Power domain to use for enable control. This binding is only
70 available if the compatible is chosen to regulator-fixed-domain.
76 Performance state to use for enable control. This binding is only
77 available if the compatible is chosen to regulator-fixed-domain. The
78 power-domain binding is mandatory if compatible is chosen to
79 regulator-fixed-domain.
83 description: startup time in microseconds
86 description: off delay time in microseconds
90 Polarity of GPIO is Active high. If this property is missing,
91 the default assumed is Active low.
96 GPIO is open drain type. If this property is missing then default
101 description: Input supply phandle.
106 Interrupt signaling a critical under-voltage event.
112 unevaluatedProperties: false
116 reg_1v8: regulator-1v8 {
117 compatible = "regulator-fixed";
118 regulator-name = "1v8";
119 regulator-min-microvolt = <1800000>;
120 regulator-max-microvolt = <1800000>;
121 gpio = <&gpio1 16 0>;
122 startup-delay-us = <70000>;
126 vin-supply = <&parent_reg>;
128 reg_1v8_clk: regulator-1v8-clk {
129 compatible = "regulator-fixed-clock";
130 regulator-name = "1v8";
131 regulator-min-microvolt = <1800000>;
132 regulator-max-microvolt = <1800000>;
134 startup-delay-us = <70000>;
137 vin-supply = <&parent_reg>;
139 reg_1v8_domain: regulator-1v8-domain {
140 compatible = "regulator-fixed-domain";
141 regulator-name = "1v8";
142 regulator-min-microvolt = <1800000>;
143 regulator-max-microvolt = <1800000>;
144 power-domains = <&domain1>;
145 required-opps = <&domain1_state1>;
146 startup-delay-us = <70000>;
149 vin-supply = <&parent_reg>;