1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/regulator/mediatek,mt6357-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: MediaTek MT6357 Regulators
8
9 maintainers:
10 - Chen Zhong <chen.zhong@mediatek.com>
11 - Fabien Parent <fabien.parent@linaro.org>
12 - Alexandre Mergnat <amergnat@baylibre.com>
13
14 description: |
15 The MT6357 PMIC provides 5 BUCK and 29 LDO.
16 Regulators and nodes are named according to the regulator type:
17 - buck-<name>
18 - ldo-<name>.
19 MT6357 regulators node should be sub node of the MT6397 MFD node.
20
21 patternProperties:
22 "^buck-v(core|modem|pa|proc|s1)$":
23 type: object
24 $ref: regulator.yaml#
25 unevaluatedProperties: false
26 description:
27 Properties for single BUCK regulator.
28
29 required:
30 - regulator-name
31 - regulator-min-microvolt
32 - regulator-max-microvolt
33
34 "^ldo-v(camio18|aud28|aux18|io18|io28|rf12|rf18|cn18|cn28|fe28)$":
35 type: object
36 $ref: fixed-regulator.yaml#
37 unevaluatedProperties: false
38 description:
39 Properties for single fixed LDO regulator.
40
41 required:
42 - regulator-name
43 - regulator-min-microvolt
44 - regulator-max-microvolt
45
46 "^ldo-v(efuse|ibr|ldo28|mch|cama|camd|cn33-bt|cn33-wifi)$":
47 type: object
48 $ref: regulator.yaml#
49 unevaluatedProperties: false
50 description:
51 Properties for single LDO regulator.
52
53 required:
54 - regulator-name
55 - regulator-min-microvolt
56 - regulator-max-microvolt
57
58 "^ldo-v(xo22|emc|mc|sim1|sim2|sram-others|sram-proc|dram|usb33)$":
59 type: object
60 $ref: regulator.yaml#
61 unevaluatedProperties: false
62 description:
63 Properties for single LDO regulator.
64
65 required:
66 - regulator-name
67 - regulator-min-microvolt
68 - regulator-max-microvolt
69
70 additionalProperties: false
71
72 examples:
73 - |
74 pmic {
75 regulators {
76 mt6357_vproc_reg: buck-vproc {
77 regulator-name = "vproc";
78 regulator-min-microvolt = <518750>;
79 regulator-max-microvolt = <1312500>;
80 regulator-ramp-delay = <6250>;
81 regulator-enable-ramp-delay = <220>;
82 regulator-always-on;
83 };
84 mt6357_vcore_reg: buck-vcore {
85 regulator-name = "vcore";
86 regulator-min-microvolt = <518750>;
87 regulator-max-microvolt = <1312500>;
88 regulator-ramp-delay = <6250>;
89 regulator-enable-ramp-delay = <220>;
90 regulator-always-on;
91 };
92 mt6357_vmodem_reg: buck-vmodem {
93 regulator-name = "vmodem";
94 regulator-min-microvolt = <500000>;
95 regulator-max-microvolt = <1193750>;
96 regulator-ramp-delay = <6250>;
97 regulator-enable-ramp-delay = <220>;
98 };
99 mt6357_vs1_reg: buck-vs1 {
100 regulator-name = "vs1";
101 regulator-min-microvolt = <1200000>;
102 regulator-max-microvolt = <2200000>;
103 regulator-ramp-delay = <12500>;
104 regulator-enable-ramp-delay = <220>;
105 regulator-always-on;
106 };
107 mt6357_vpa_reg: buck-vpa {
108 regulator-name = "vpa";
109 regulator-min-microvolt = <500000>;
110 regulator-max-microvolt = <3650000>;
111 regulator-ramp-delay = <50000>;
112 regulator-enable-ramp-delay = <220>;
113 };
114 mt6357_vfe28_reg: ldo-vfe28 {
115 compatible = "regulator-fixed";
116 regulator-name = "vfe28";
117 regulator-min-microvolt = <2800000>;
118 regulator-max-microvolt = <2800000>;
119 regulator-enable-ramp-delay = <264>;
120 };
121 mt6357_vxo22_reg: ldo-vxo22 {
122 regulator-name = "vxo22";
123 regulator-min-microvolt = <2200000>;
124 regulator-max-microvolt = <2400000>;
125 regulator-enable-ramp-delay = <110>;
126 };
127 mt6357_vrf18_reg: ldo-vrf18 {
128 compatible = "regulator-fixed";
129 regulator-name = "vrf18";
130 regulator-min-microvolt = <1800000>;
131 regulator-max-microvolt = <1800000>;
132 regulator-enable-ramp-delay = <110>;
133 };
134 mt6357_vrf12_reg: ldo-vrf12 {
135 compatible = "regulator-fixed";
136 regulator-name = "vrf12";
137 regulator-min-microvolt = <1200000>;
138 regulator-max-microvolt = <1200000>;
139 regulator-enable-ramp-delay = <110>;
140 };
141 mt6357_vefuse_reg: ldo-vefuse {
142 regulator-name = "vefuse";
143 regulator-min-microvolt = <1200000>;
144 regulator-max-microvolt = <3300000>;
145 regulator-enable-ramp-delay = <264>;
146 };
147 mt6357_vcn33_bt_reg: ldo-vcn33-bt {
148 regulator-name = "vcn33-bt";
149 regulator-min-microvolt = <3300000>;
150 regulator-max-microvolt = <3500000>;
151 regulator-enable-ramp-delay = <264>;
152 };
153 mt6357_vcn33_wifi_reg: ldo-vcn33-wifi {
154 regulator-name = "vcn33-wifi";
155 regulator-min-microvolt = <3300000>;
156 regulator-max-microvolt = <3500000>;
157 regulator-enable-ramp-delay = <264>;
158 };
159 mt6357_vcn28_reg: ldo-vcn28 {
160 compatible = "regulator-fixed";
161 regulator-name = "vcn28";
162 regulator-min-microvolt = <2800000>;
163 regulator-max-microvolt = <2800000>;
164 regulator-enable-ramp-delay = <264>;
165 };
166 mt6357_vcn18_reg: ldo-vcn18 {
167 compatible = "regulator-fixed";
168 regulator-name = "vcn18";
169 regulator-min-microvolt = <1800000>;
170 regulator-max-microvolt = <1800000>;
171 regulator-enable-ramp-delay = <264>;
172 };
173 mt6357_vcama_reg: ldo-vcama {
174 regulator-name = "vcama";
175 regulator-min-microvolt = <2500000>;
176 regulator-max-microvolt = <2800000>;
177 regulator-enable-ramp-delay = <264>;
178 };
179 mt6357_vcamd_reg: ldo-vcamd {
180 regulator-name = "vcamd";
181 regulator-min-microvolt = <1000000>;
182 regulator-max-microvolt = <1800000>;
183 regulator-enable-ramp-delay = <264>;
184 };
185 mt6357_vcamio_reg: ldo-vcamio18 {
186 compatible = "regulator-fixed";
187 regulator-name = "vcamio";
188 regulator-min-microvolt = <1800000>;
189 regulator-max-microvolt = <1800000>;
190 regulator-enable-ramp-delay = <264>;
191 };
192 mt6357_vldo28_reg: ldo-vldo28 {
193 regulator-name = "vldo28";
194 regulator-min-microvolt = <2800000>;
195 regulator-max-microvolt = <3000000>;
196 regulator-enable-ramp-delay = <264>;
197 };
198 mt6357_vsram_others_reg: ldo-vsram-others {
199 regulator-name = "vsram-others";
200 regulator-min-microvolt = <518750>;
201 regulator-max-microvolt = <1312500>;
202 regulator-ramp-delay = <6250>;
203 regulator-enable-ramp-delay = <110>;
204 regulator-always-on;
205 };
206 mt6357_vsram_proc_reg: ldo-vsram-proc {
207 regulator-name = "vsram-proc";
208 regulator-min-microvolt = <518750>;
209 regulator-max-microvolt = <1312500>;
210 regulator-ramp-delay = <6250>;
211 regulator-enable-ramp-delay = <110>;
212 regulator-always-on;
213 };
214 mt6357_vaux18_reg: ldo-vaux18 {
215 compatible = "regulator-fixed";
216 regulator-name = "vaux18";
217 regulator-min-microvolt = <1800000>;
218 regulator-max-microvolt = <1800000>;
219 regulator-enable-ramp-delay = <264>;
220 };
221 mt6357_vaud28_reg: ldo-vaud28 {
222 compatible = "regulator-fixed";
223 regulator-name = "vaud28";
224 regulator-min-microvolt = <2800000>;
225 regulator-max-microvolt = <2800000>;
226 regulator-enable-ramp-delay = <264>;
227 };
228 mt6357_vio28_reg: ldo-vio28 {
229 compatible = "regulator-fixed";
230 regulator-name = "vio28";
231 regulator-min-microvolt = <2800000>;
232 regulator-max-microvolt = <2800000>;
233 regulator-enable-ramp-delay = <264>;
234 };
235 mt6357_vio18_reg: ldo-vio18 {
236 compatible = "regulator-fixed";
237 regulator-name = "vio18";
238 regulator-min-microvolt = <1800000>;
239 regulator-max-microvolt = <1800000>;
240 regulator-enable-ramp-delay = <264>;
241 regulator-always-on;
242 };
243 mt6357_vdram_reg: ldo-vdram {
244 regulator-name = "vdram";
245 regulator-min-microvolt = <1100000>;
246 regulator-max-microvolt = <1200000>;
247 regulator-enable-ramp-delay = <3300>;
248 };
249 mt6357_vmc_reg: ldo-vmc {
250 regulator-name = "vmc";
251 regulator-min-microvolt = <1800000>;
252 regulator-max-microvolt = <3300000>;
253 regulator-enable-ramp-delay = <44>;
254 };
255 mt6357_vmch_reg: ldo-vmch {
256 regulator-name = "vmch";
257 regulator-min-microvolt = <2900000>;
258 regulator-max-microvolt = <3300000>;
259 regulator-enable-ramp-delay = <44>;
260 };
261 mt6357_vemc_reg: ldo-vemc {
262 regulator-name = "vemc";
263 regulator-min-microvolt = <2900000>;
264 regulator-max-microvolt = <3300000>;
265 regulator-enable-ramp-delay = <44>;
266 regulator-always-on;
267 };
268 mt6357_vsim1_reg: ldo-vsim1 {
269 regulator-name = "vsim1";
270 regulator-min-microvolt = <1700000>;
271 regulator-max-microvolt = <3100000>;
272 regulator-enable-ramp-delay = <264>;
273 };
274 mt6357_vsim2_reg: ldo-vsim2 {
275 regulator-name = "vsim2";
276 regulator-min-microvolt = <1700000>;
277 regulator-max-microvolt = <3100000>;
278 regulator-enable-ramp-delay = <264>;
279 };
280 mt6357_vibr_reg: ldo-vibr {
281 regulator-name = "vibr";
282 regulator-min-microvolt = <1200000>;
283 regulator-max-microvolt = <3300000>;
284 regulator-enable-ramp-delay = <44>;
285 };
286 mt6357_vusb33_reg: ldo-vusb33 {
287 regulator-name = "vusb33";
288 regulator-min-microvolt = <3000000>;
289 regulator-max-microvolt = <3100000>;
290 regulator-enable-ramp-delay = <264>;
291 };
292 };
293 };
294 ...
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