1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/regulator/mediatek,mt6358-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: MediaTek MT6358 Regulator
8
9 maintainers:
10 - Zhiyong Tao <zhiyong.tao@mediatek.com>
11
12 description:
13 Regulator node of the PMIC. This node should under the PMIC's device node.
14 All voltage regulators provided by the PMIC are described as sub-nodes of
15 this node.
16
17 properties:
18 compatible:
19 oneOf:
20 - const: mediatek,mt6358-regulator
21 - items:
22 - const: mediatek,mt6366-regulator
23 - const: mediatek,mt6358-regulator
24
25 vsys-ldo1-supply:
26 description: Supply for LDOs vfe28, vxo22, vcn28, vaux18, vaud28, vsim1, vusb, vbif28
27 vsys-ldo2-supply:
28 description: Supply for LDOs vldo28 (MT6358 only), vio28, vmc, vmch, vsim2
29 vsys-ldo3-supply:
30 description: Supply for LDOs vcn33, vcama[12] (MT6358 only), vemc, vibr
31 vsys-vcore-supply:
32 description: Supply for buck regulator vcore
33 vsys-vdram1-supply:
34 description: Supply for buck regulator vdram1
35 vsys-vgpu-supply:
36 description: Supply for buck regulator vgpu
37 vsys-vmodem-supply:
38 description: Supply for buck regulator vmodem
39 vsys-vpa-supply:
40 description: Supply for buck regulator vpa
41 vsys-vproc11-supply:
42 description: Supply for buck regulator vproc11
43 vsys-vproc12-supply:
44 description: Supply for buck regulator vproc12
45 vsys-vs1-supply:
46 description: Supply for buck regulator vs1
47 vsys-vs2-supply:
48 description: Supply for buck regulator vs2
49 vs1-ldo1-supply:
50 description:
51 Supply for LDOs vrf18, vefuse, vcn18, vcamio (MT6358 only), vio18, vm18 (MT6366 only)
52 vs2-ldo1-supply:
53 description: Supply for LDOs vdram2, vmddr (MT6366 only)
54 vs2-ldo2-supply:
55 description: Supply for LDOs vrf12, va12
56 vs2-ldo3-supply:
57 description:
58 Supply for LDOs vsram-core (MT6366 only), vsram-gpu, vsram-others, vsram-proc11, vsram-proc12
59 vs2-ldo4-supply:
60 description: Supply for LDO vcamd
61
62 patternProperties:
63 "^(buck_)?v(core|dram1|gpu|modem|pa|proc1[12]|s[12])$":
64 description: Buck regulators
65 type: object
66 $ref: regulator.yaml#
67 properties:
68 regulator-allowed-modes:
69 description: |
70 Buck regulatpr operating modes allowed. Valid values below.
71 Users should use the macros from dt-bindings/regulator/mediatek,mt6397-regulator.h
72 0 (MT6397_BUCK_MODE_AUTO): Auto PFM/PWM mode
73 1 (MT6397_BUCK_MODE_FORCE_PWM): Forced PWM mode
74 items:
75 enum: [0, 1]
76 unevaluatedProperties: false
77
78 "^(ldo_)?v(a|rf)12$":
79 description: LDOs with fixed 1.2V output and 0~100/10mV tuning
80 type: object
81 $ref: regulator.yaml#
82 properties:
83 regulator-allowed-modes: false
84 unevaluatedProperties: false
85
86 "^(ldo_)?v((aux|cn|io|rf)18|camio)$":
87 description:
88 LDOs with fixed 1.8V output and 0~100/10mV tuning (vcn18 on MT6366 has variable output)
89 type: object
90 $ref: regulator.yaml#
91 properties:
92 regulator-allowed-modes: false
93 unevaluatedProperties: false
94
95 "^(ldo_)?vxo22$":
96 description: LDOs with fixed 2.2V output and 0~100/10mV tuning
97 type: object
98 $ref: regulator.yaml#
99 properties:
100 regulator-allowed-modes: false
101 unevaluatedProperties: false
102
103 "^(ldo_)?v(aud|bif|cn|fe|io)28$":
104 description: LDOs with fixed 2.8V output and 0~100/10mV tuning
105 type: object
106 $ref: regulator.yaml#
107 properties:
108 regulator-allowed-modes: false
109 unevaluatedProperties: false
110
111 "^(ldo_)?vusb$":
112 description: LDOs with fixed 3.0V output and 0~100/10mV tuning
113 type: object
114 $ref: regulator.yaml#
115 properties:
116 regulator-allowed-modes: false
117 unevaluatedProperties: false
118
119 "^(ldo_)?vsram[_-](core|gpu|others|proc1[12])$":
120 description: LDOs with variable output
121 type: object
122 $ref: regulator.yaml#
123 properties:
124 regulator-allowed-modes: false
125 unevaluatedProperties: false
126
127 "^(ldo_)?v(cama[12]|camd|cn33|dram2|efuse|emc|ibr|ldo28|m18|mc|mch|mddr|sim[12])$":
128 description: LDOs with variable output and 0~100/10mV tuning
129 type: object
130 $ref: regulator.yaml#
131 properties:
132 regulator-allowed-modes: false
133 unevaluatedProperties: false
134
135 required:
136 - compatible
137
138 additionalProperties: false
139
140 allOf:
141 - if:
142 properties:
143 compatible:
144 const: mediatek,mt6358-regulator
145 then:
146 patternProperties:
147 # Old regulator node name scheme (with prefix and underscores) only
148 # ([^y-] is used to avoid matching -supply
149 "^(?<!buck_)(?<!ldo_)v.*[^y-](?!-supply)$": false
150 "^ldo_vsram-": false
151 # vsram_core regulator doesn't exist on MT6358
152 "^ldo_vsram[-_]core$": false
153
154 properties:
155 # vm18 and vmddr regulators don't exist on MT6358
156 ldo_vm18: false
157 ldo_vmddr: false
158
159 - if:
160 properties:
161 compatible:
162 contains:
163 const: mediatek,mt6366-regulator
164 then:
165 patternProperties:
166 # Prefer cleaned up regulator node names
167 "^(buck|ldo)_": false
168 # Don't allow underscores
169 "^vsram_": false
170 # vcam* regulators don't exist on MT6366
171 "^vcam": false
172
173 properties:
174 # vldo28 regulator doesn't exist on MT6366
175 vldo28: false
176 # vs2_ldo4 supply pin doesn't exist on MT6366
177 vs2-ldo4-supply: false
178
179 examples:
180 - |
181 #include <dt-bindings/regulator/mediatek,mt6397-regulator.h>
182
183 regulator {
184 compatible = "mediatek,mt6358-regulator";
185
186 buck_vgpu {
187 regulator-name = "vgpu";
188 regulator-min-microvolt = <625000>;
189 regulator-max-microvolt = <900000>;
190 regulator-ramp-delay = <6250>;
191 regulator-enable-ramp-delay = <200>;
192 regulator-allowed-modes = <MT6397_BUCK_MODE_AUTO
193 MT6397_BUCK_MODE_FORCE_PWM>;
194 };
195
196 ldo_vsram_gpu {
197 regulator-name = "vsram_gpu";
198 regulator-min-microvolt = <850000>;
199 regulator-max-microvolt = <1000000>;
200 regulator-ramp-delay = <6250>;
201 regulator-enable-ramp-delay = <240>;
202 };
203 };
204
205 - |
206 #include <dt-bindings/regulator/mediatek,mt6397-regulator.h>
207
208 regulator {
209 compatible = "mediatek,mt6366-regulator", "mediatek,mt6358-regulator";
210
211 vdram1 {
212 regulator-name = "pp1125_emi_vdd2";
213 regulator-min-microvolt = <1125000>;
214 regulator-max-microvolt = <1125000>;
215 regulator-ramp-delay = <12500>;
216 regulator-enable-ramp-delay = <0>;
217 regulator-allowed-modes = <MT6397_BUCK_MODE_AUTO
218 MT6397_BUCK_MODE_FORCE_PWM>;
219 regulator-always-on;
220 };
221
222 vproc11 {
223 regulator-name = "ppvar_dvdd_proc_bc_mt6366";
224 regulator-min-microvolt = <600000>;
225 regulator-max-microvolt = <1200000>;
226 regulator-ramp-delay = <6250>;
227 regulator-enable-ramp-delay = <200>;
228 regulator-allowed-modes = <MT6397_BUCK_MODE_AUTO
229 MT6397_BUCK_MODE_FORCE_PWM>;
230 regulator-always-on;
231 };
232
233 vmddr {
234 regulator-name = "pm0750_emi_vmddr";
235 regulator-min-microvolt = <700000>;
236 regulator-max-microvolt = <750000>;
237 regulator-enable-ramp-delay = <325>;
238 regulator-always-on;
239 };
240
241 vsram-proc11 {
242 regulator-name = "pp0900_dvdd_sram_bc";
243 regulator-min-microvolt = <850000>;
244 regulator-max-microvolt = <1120000>;
245 regulator-ramp-delay = <6250>;
246 regulator-enable-ramp-delay = <240>;
247 regulator-always-on;
248 };
249 };
250 ...
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