1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/regulator/mediatek,mt6397-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: MediaTek MT6397 Regulator
8
9 maintainers:
10 - Sen Chu <sen.chu@mediatek.com>
11 - Macpaul Lin <macpaul.lin@mediatek.com>
12
13 description:
14 Regulator node of the PMIC. This node should under the PMIC's device node.
15 All voltage regulators provided by the PMIC are described as sub-nodes of
16 this node.
17
18 properties:
19 compatible:
20 items:
21 - const: mediatek,mt6397-regulator
22
23 patternProperties:
24 "^(buck_)?v(core|drm|gpu|io18|pca(7|15)|sramca(7|15))$":
25 description: Buck regulators
26 type: object
27 $ref: regulator.yaml#
28 properties:
29 regulator-allowed-modes:
30 description: |
31 BUCK regulators can set regulator-initial-mode and regulator-allowed-modes to
32 values specified in dt-bindings/regulator/mediatek,mt6397-regulator.h
33 items:
34 enum: [0, 1]
35 unevaluatedProperties: false
36
37 "^(ldo_)?v(tcxo|(a|io)28)$":
38 description: LDOs with fixed 2.8V output and 0~100/10mV tuning
39 type: object
40 $ref: regulator.yaml#
41 properties:
42 regulator-allowed-modes: false
43 unevaluatedProperties: false
44
45 "^(ldo_)?vusb$":
46 description: LDOs with fixed 3.0V output and 0~100/10mV tuning
47 type: object
48 $ref: regulator.yaml#
49 properties:
50 regulator-allowed-modes: false
51 unevaluatedProperties: false
52
53 "^(ldo_)?v(cama|emc3v3|gp[123456]|ibr|mc|mch)$":
54 description: LDOs with variable output and 0~100/10mV tuning
55 type: object
56 $ref: regulator.yaml#
57 properties:
58 regulator-allowed-modes: false
59 unevaluatedProperties: false
60
61 required:
62 - compatible
63
64 additionalProperties: false
65
66 examples:
67 - |
68 #include <dt-bindings/interrupt-controller/arm-gic.h>
69
70 mt6397_regulators: regulators {
71 compatible = "mediatek,mt6397-regulator";
72
73 mt6397_vpca15_reg: buck_vpca15 {
74 regulator-name = "vpca15";
75 regulator-min-microvolt = < 850000>;
76 regulator-max-microvolt = <1350000>;
77 regulator-ramp-delay = <12500>;
78 regulator-enable-ramp-delay = <200>;
79 };
80
81 mt6397_vpca7_reg: buck_vpca7 {
82 regulator-name = "vpca7";
83 regulator-min-microvolt = < 850000>;
84 regulator-max-microvolt = <1350000>;
85 regulator-ramp-delay = <12500>;
86 regulator-enable-ramp-delay = <115>;
87 };
88
89 mt6397_vsramca15_reg: buck_vsramca15 {
90 regulator-name = "vsramca15";
91 regulator-min-microvolt = < 850000>;
92 regulator-max-microvolt = <1350000>;
93 regulator-ramp-delay = <12500>;
94 regulator-enable-ramp-delay = <115>;
95 };
96
97 mt6397_vsramca7_reg: buck_vsramca7 {
98 regulator-name = "vsramca7";
99 regulator-min-microvolt = < 850000>;
100 regulator-max-microvolt = <1350000>;
101 regulator-ramp-delay = <12500>;
102 regulator-enable-ramp-delay = <115>;
103 };
104
105 mt6397_vcore_reg: buck_vcore {
106 regulator-name = "vcore";
107 regulator-min-microvolt = < 850000>;
108 regulator-max-microvolt = <1350000>;
109 regulator-ramp-delay = <12500>;
110 regulator-enable-ramp-delay = <115>;
111 };
112
113 mt6397_vgpu_reg: buck_vgpu {
114 regulator-name = "vgpu";
115 regulator-min-microvolt = < 700000>;
116 regulator-max-microvolt = <1350000>;
117 regulator-ramp-delay = <12500>;
118 regulator-enable-ramp-delay = <115>;
119 };
120
121 mt6397_vdrm_reg: buck_vdrm {
122 regulator-name = "vdrm";
123 regulator-min-microvolt = < 800000>;
124 regulator-max-microvolt = <1400000>;
125 regulator-ramp-delay = <12500>;
126 regulator-enable-ramp-delay = <500>;
127 };
128
129 mt6397_vio18_reg: buck_vio18 {
130 regulator-name = "vio18";
131 regulator-min-microvolt = <1500000>;
132 regulator-max-microvolt = <2120000>;
133 regulator-ramp-delay = <12500>;
134 regulator-enable-ramp-delay = <500>;
135 };
136
137 mt6397_vtcxo_reg: ldo_vtcxo {
138 regulator-name = "vtcxo";
139 regulator-min-microvolt = <2800000>;
140 regulator-max-microvolt = <2800000>;
141 regulator-enable-ramp-delay = <90>;
142 };
143
144 mt6397_va28_reg: ldo_va28 {
145 regulator-name = "va28";
146 /* fixed output 2.8 V */
147 regulator-enable-ramp-delay = <218>;
148 };
149
150 mt6397_vcama_reg: ldo_vcama {
151 regulator-name = "vcama";
152 regulator-min-microvolt = <1500000>;
153 regulator-max-microvolt = <2800000>;
154 regulator-enable-ramp-delay = <218>;
155 };
156
157 mt6397_vio28_reg: ldo_vio28 {
158 regulator-name = "vio28";
159 /* fixed output 2.8 V */
160 regulator-enable-ramp-delay = <240>;
161 };
162
163 mt6397_usb_reg: ldo_vusb {
164 regulator-name = "vusb";
165 /* fixed output 3.3 V */
166 regulator-enable-ramp-delay = <218>;
167 };
168
169 mt6397_vmc_reg: ldo_vmc {
170 regulator-name = "vmc";
171 regulator-min-microvolt = <1800000>;
172 regulator-max-microvolt = <3300000>;
173 regulator-enable-ramp-delay = <218>;
174 };
175
176 mt6397_vmch_reg: ldo_vmch {
177 regulator-name = "vmch";
178 regulator-min-microvolt = <3000000>;
179 regulator-max-microvolt = <3300000>;
180 regulator-enable-ramp-delay = <218>;
181 };
182
183 mt6397_vemc_3v3_reg: ldo_vemc3v3 {
184 regulator-name = "vemc_3v3";
185 regulator-min-microvolt = <3000000>;
186 regulator-max-microvolt = <3300000>;
187 regulator-enable-ramp-delay = <218>;
188 };
189
190 mt6397_vgp1_reg: ldo_vgp1 {
191 regulator-name = "vcamd";
192 regulator-min-microvolt = <1220000>;
193 regulator-max-microvolt = <3300000>;
194 regulator-enable-ramp-delay = <240>;
195 };
196
197 mt6397_vgp2_reg: ldo_vgp2 {
198 regulator-name = "vcamio";
199 regulator-min-microvolt = <1000000>;
200 regulator-max-microvolt = <3300000>;
201 regulator-enable-ramp-delay = <218>;
202 };
203
204 mt6397_vgp3_reg: ldo_vgp3 {
205 regulator-name = "vcamaf";
206 regulator-min-microvolt = <1200000>;
207 regulator-max-microvolt = <3300000>;
208 regulator-enable-ramp-delay = <218>;
209 };
210
211 mt6397_vgp4_reg: ldo_vgp4 {
212 regulator-name = "vgp4";
213 regulator-min-microvolt = <1200000>;
214 regulator-max-microvolt = <3300000>;
215 regulator-enable-ramp-delay = <218>;
216 };
217
218 mt6397_vgp5_reg: ldo_vgp5 {
219 regulator-name = "vgp5";
220 regulator-min-microvolt = <1200000>;
221 regulator-max-microvolt = <3000000>;
222 regulator-enable-ramp-delay = <218>;
223 };
224
225 mt6397_vgp6_reg: ldo_vgp6 {
226 regulator-name = "vgp6";
227 regulator-min-microvolt = <1200000>;
228 regulator-max-microvolt = <3300000>;
229 regulator-enable-ramp-delay = <218>;
230 };
231
232 mt6397_vibr_reg: ldo_vibr {
233 regulator-name = "vibr";
234 regulator-min-microvolt = <1200000>;
235 regulator-max-microvolt = <3300000>;
236 regulator-enable-ramp-delay = <218>;
237 };
238 };
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