Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: mfd: mediatek: mt6397: Convert to DT schema format
Convert the mfd: mediatek: mt6397 binding to DT schema format.
MT6323, MT6358, and MT6397 are PMIC devices with multiple function
subdevices. They share a common PMIC design but have variations in
subdevice combinations.
Key updates in this conversion:
1. RTC:
- Convert rtc-mt6397.txt and merge into parent MT6397 PMIC DT schema.
2. Regulators:
- Align to generic name "regulators".
- Update references from .txt to .yaml for mt6323, mt6358, and mt6397
regulators.
- Simplify regulator name labels in device tree examples.
3. Audio Codec:
- Simplify Audio Codec part with updating compatible items.
- Align to generic name "audio-codec" for codec and sound subdevices.
4. Clocks:
- Align to generic name "clocks" for clockbuffer subdevices.
5. LEDs:
- Convert leds-mt6323.txt and merge into parent MT6397 PMIC DT schema.
- Update LED binding.
6. Keys:
- Add detailed descriptions for power and home keys.
- Add compatible: mediatek,mt6358-keys.
7. Power Controller:
- Convert mt6323-poweroff.txt and merge into parent MT6397 PMIC DT
schema.
- Add #power-domain-cells property to fix dt-binding check error.
- Clarify "BBPU" as "Baseband power up".
8. Pinctrl:
- Align to generic name "pinctrl" instead of "pin-controller".
9. Compatible:
- Drop "mediatek,mt6357" since there is a separated DT Schema
for PMIC MT6357.
10. Examples:
- MT6323: Retain complete examples for this PMIC.
- MT6358 and MT6397: simplify settings in regulators.
- Preserve "audio-codec", "clocks", "pinctrl", "rtc", and "keys"
sections as they contain typical settings for different PMICs.
Additional updates:
- MAINTAINERS: Add co-maintainers and reference to
mfd/mediatek,mt6397.yaml for LED and power-controller drivers.
- input/mediatek,pmic-keys.yaml: Update reference to
mfd/mediatek,mt6397.yaml.
Signed-off-by: Sen Chu <sen.chu@mediatek.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20241001104145.24054-3-macpaul.lin@mediatek.com
Signed-off-by: Lee Jones <lee@kernel.org>
authored by
Macpaul Lin
and committed by
Lee Jones
6e357f57
9852d85e
+595
-227
+1
-1
Documentation/devicetree/bindings/input/mediatek,pmic-keys.yaml
+1
-1
Documentation/devicetree/bindings/input/mediatek,pmic-keys.yaml
-63
Documentation/devicetree/bindings/leds/leds-mt6323.txt
-63
Documentation/devicetree/bindings/leds/leds-mt6323.txt
···
1
-
Device Tree Bindings for LED support on MT6323 PMIC
2
-
3
-
MT6323 LED controller is subfunction provided by MT6323 PMIC, so the LED
4
-
controllers are defined as the subnode of the function node provided by MT6323
5
-
PMIC controller that is being defined as one kind of Muti-Function Device (MFD)
6
-
using shared bus called PMIC wrapper for each subfunction to access remote
7
-
MT6323 PMIC hardware.
8
-
9
-
For MT6323 MFD bindings see:
10
-
Documentation/devicetree/bindings/mfd/mt6397.txt
11
-
For MediaTek PMIC wrapper bindings see:
12
-
Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
13
-
14
-
Required properties:
15
-
- compatible : Must be one of
16
-
- "mediatek,mt6323-led"
17
-
- "mediatek,mt6331-led"
18
-
- "mediatek,mt6332-led"
19
-
- address-cells : Must be 1
20
-
- size-cells : Must be 0
21
-
22
-
Each led is represented as a child node of the mediatek,mt6323-led that
23
-
describes the initial behavior for each LED physically and currently only four
24
-
LED child nodes can be supported.
25
-
26
-
Required properties for the LED child node:
27
-
- reg : LED channel number (0..3)
28
-
29
-
Optional properties for the LED child node:
30
-
- label : See Documentation/devicetree/bindings/leds/common.txt
31
-
- linux,default-trigger : See Documentation/devicetree/bindings/leds/common.txt
32
-
- default-state: See Documentation/devicetree/bindings/leds/common.txt
33
-
34
-
Example:
35
-
36
-
mt6323: pmic {
37
-
compatible = "mediatek,mt6323";
38
-
39
-
...
40
-
41
-
mt6323led: leds {
42
-
compatible = "mediatek,mt6323-led";
43
-
#address-cells = <1>;
44
-
#size-cells = <0>;
45
-
46
-
led@0 {
47
-
reg = <0>;
48
-
label = "LED0";
49
-
linux,default-trigger = "timer";
50
-
default-state = "on";
51
-
};
52
-
led@1 {
53
-
reg = <1>;
54
-
label = "LED1";
55
-
default-state = "off";
56
-
};
57
-
led@2 {
58
-
reg = <2>;
59
-
label = "LED2";
60
-
default-state = "on";
61
-
};
62
-
};
63
-
};
+588
Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
+588
Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
···
1
+
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2
+
%YAML 1.2
3
+
---
4
+
$id: http://devicetree.org/schemas/mfd/mediatek,mt6397.yaml#
5
+
$schema: http://devicetree.org/meta-schemas/core.yaml#
6
+
7
+
title: MediaTek MT6397/MT6323 PMIC
8
+
9
+
maintainers:
10
+
- Sen Chu <sen.chu@mediatek.com>
11
+
- Macpaul Lin <macpaul.lin@mediatek.com>
12
+
13
+
description: |
14
+
MT6397/MT6323 is a power management system chip.
15
+
Please see the sub-modules below for supported features.
16
+
17
+
MT6397/MT6323 is a multifunction device with the following sub modules:
18
+
- Regulators
19
+
- RTC
20
+
- Audio codec
21
+
- GPIO
22
+
- Clock
23
+
- LED
24
+
- Keys
25
+
- Power controller
26
+
27
+
It is interfaced to host controller using SPI interface by a proprietary hardware
28
+
called PMIC wrapper or pwrap. MT6397/MT6323 PMIC is a child device of pwrap.
29
+
See the following for pwrap node definitions:
30
+
Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
31
+
32
+
properties:
33
+
compatible:
34
+
oneOf:
35
+
- enum:
36
+
- mediatek,mt6323
37
+
- mediatek,mt6331 # "mediatek,mt6331" for PMIC MT6331 and MT6332.
38
+
- mediatek,mt6358
39
+
- mediatek,mt6359
40
+
- mediatek,mt6397
41
+
- items:
42
+
- enum:
43
+
- mediatek,mt6366
44
+
- const: mediatek,mt6358
45
+
46
+
interrupts:
47
+
maxItems: 1
48
+
49
+
interrupt-controller: true
50
+
51
+
"#interrupt-cells":
52
+
const: 2
53
+
54
+
rtc:
55
+
type: object
56
+
$ref: /schemas/rtc/rtc.yaml#
57
+
unevaluatedProperties: false
58
+
description:
59
+
MT6397 Real Time Clock.
60
+
61
+
properties:
62
+
compatible:
63
+
oneOf:
64
+
- enum:
65
+
- mediatek,mt6323-rtc
66
+
- mediatek,mt6331-rtc
67
+
- mediatek,mt6358-rtc
68
+
- mediatek,mt6397-rtc
69
+
- items:
70
+
- enum:
71
+
- mediatek,mt6366-rtc
72
+
- const: mediatek,mt6358-rtc
73
+
74
+
required:
75
+
- compatible
76
+
77
+
regulators:
78
+
type: object
79
+
description:
80
+
List of child nodes that specify the regulators.
81
+
additionalProperties: true
82
+
83
+
properties:
84
+
compatible:
85
+
oneOf:
86
+
- enum:
87
+
- mediatek,mt6323-regulator
88
+
- mediatek,mt6358-regulator
89
+
- mediatek,mt6397-regulator
90
+
- items:
91
+
- enum:
92
+
- mediatek,mt6366-regulator
93
+
- const: mediatek,mt6358-regulator
94
+
95
+
required:
96
+
- compatible
97
+
98
+
audio-codec:
99
+
type: object
100
+
description:
101
+
Audio codec support with MT6358 and MT6397.
102
+
additionalProperties: true
103
+
104
+
properties:
105
+
compatible:
106
+
oneOf:
107
+
- enum:
108
+
- mediatek,mt6358-sound
109
+
- mediatek,mt6397-codec
110
+
- items:
111
+
- enum:
112
+
- mediatek,mt6366-sound
113
+
- const: mediatek,mt6358-sound
114
+
115
+
required:
116
+
- compatible
117
+
118
+
clocks:
119
+
type: object
120
+
additionalProperties: false
121
+
description:
122
+
This is a clock buffer node for mt6397. However, there are no sub nodes
123
+
or any public document exposed in public.
124
+
125
+
properties:
126
+
compatible:
127
+
const: mediatek,mt6397-clk
128
+
129
+
'#clock-cells':
130
+
const: 1
131
+
132
+
required:
133
+
- compatible
134
+
135
+
leds:
136
+
type: object
137
+
additionalProperties: false
138
+
description: |
139
+
MT6323 LED controller is subfunction provided by MT6323 PMIC, so the LED
140
+
controllers are defined as the subnode of the function node provided by MT6323
141
+
PMIC controller that is being defined as one kind of Muti-Function Device (MFD)
142
+
using shared bus called PMIC wrapper for each subfunction to access remote
143
+
MT6323 PMIC hardware.
144
+
145
+
Each led is represented as a child node of the mediatek,mt6323-led that
146
+
describes the initial behavior for each LED physically and currently only four
147
+
LED child nodes can be supported.
148
+
149
+
properties:
150
+
compatible:
151
+
enum:
152
+
- mediatek,mt6323-led
153
+
- mediatek,mt6331-led
154
+
- mediatek,mt6332-led
155
+
156
+
reg:
157
+
maxItems: 1
158
+
159
+
"#address-cells":
160
+
const: 1
161
+
162
+
"#size-cells":
163
+
const: 0
164
+
165
+
patternProperties:
166
+
"^led@[0-3]$":
167
+
type: object
168
+
$ref: /schemas/leds/common.yaml#
169
+
unevaluatedProperties: false
170
+
171
+
properties:
172
+
reg:
173
+
description:
174
+
LED channel number (0..3)
175
+
minimum: 0
176
+
maximum: 3
177
+
178
+
required:
179
+
- reg
180
+
181
+
required:
182
+
- compatible
183
+
- "#address-cells"
184
+
- "#size-cells"
185
+
186
+
keys:
187
+
type: object
188
+
$ref: /schemas/input/mediatek,pmic-keys.yaml
189
+
unevaluatedProperties: false
190
+
description:
191
+
Power and Home keys.
192
+
193
+
power-controller:
194
+
type: object
195
+
additionalProperties: false
196
+
description:
197
+
The power controller which could be found on PMIC is responsible for
198
+
externally powering off or on the remote MediaTek SoC through the
199
+
circuit BBPU (baseband power up).
200
+
201
+
properties:
202
+
compatible:
203
+
const: mediatek,mt6323-pwrc
204
+
205
+
'#power-domain-cells':
206
+
const: 0
207
+
208
+
pinctrl:
209
+
type: object
210
+
$ref: /schemas/pinctrl/mediatek,mt65xx-pinctrl.yaml
211
+
unevaluatedProperties: false
212
+
description:
213
+
Pin controller
214
+
215
+
required:
216
+
- compatible
217
+
- regulators
218
+
219
+
additionalProperties: false
220
+
221
+
examples:
222
+
- |
223
+
#include <dt-bindings/interrupt-controller/arm-gic.h>
224
+
#include <dt-bindings/leds/common.h>
225
+
226
+
pmic {
227
+
compatible = "mediatek,mt6323";
228
+
interrupt-parent = <&pio>;
229
+
interrupts = <150 IRQ_TYPE_LEVEL_HIGH>;
230
+
interrupt-controller;
231
+
#interrupt-cells = <2>;
232
+
233
+
leds {
234
+
compatible = "mediatek,mt6323-led";
235
+
#address-cells = <1>;
236
+
#size-cells = <0>;
237
+
};
238
+
239
+
regulators {
240
+
compatible = "mediatek,mt6323-regulator";
241
+
242
+
buck_vproc {
243
+
regulator-name = "vproc";
244
+
regulator-min-microvolt = < 700000>;
245
+
regulator-max-microvolt = <1350000>;
246
+
regulator-ramp-delay = <12500>;
247
+
regulator-always-on;
248
+
regulator-boot-on;
249
+
};
250
+
251
+
buck_vsys {
252
+
regulator-name = "vsys";
253
+
regulator-min-microvolt = <1400000>;
254
+
regulator-max-microvolt = <2987500>;
255
+
regulator-ramp-delay = <25000>;
256
+
regulator-always-on;
257
+
regulator-boot-on;
258
+
};
259
+
260
+
buck_vpa {
261
+
regulator-name = "vpa";
262
+
regulator-min-microvolt = < 500000>;
263
+
regulator-max-microvolt = <3650000>;
264
+
};
265
+
266
+
ldo_vtcxo {
267
+
regulator-name = "vtcxo";
268
+
regulator-min-microvolt = <2800000>;
269
+
regulator-max-microvolt = <2800000>;
270
+
regulator-enable-ramp-delay = <90>;
271
+
regulator-always-on;
272
+
regulator-boot-on;
273
+
};
274
+
275
+
ldo_vcn28 {
276
+
regulator-name = "vcn28";
277
+
regulator-min-microvolt = <2800000>;
278
+
regulator-max-microvolt = <2800000>;
279
+
regulator-enable-ramp-delay = <185>;
280
+
};
281
+
282
+
ldo_vcn33_bt {
283
+
regulator-name = "vcn33_bt";
284
+
regulator-min-microvolt = <3300000>;
285
+
regulator-max-microvolt = <3600000>;
286
+
regulator-enable-ramp-delay = <185>;
287
+
};
288
+
289
+
ldo_vcn33_wifi {
290
+
regulator-name = "vcn33_wifi";
291
+
regulator-min-microvolt = <3300000>;
292
+
regulator-max-microvolt = <3600000>;
293
+
regulator-enable-ramp-delay = <185>;
294
+
};
295
+
296
+
ldo_va {
297
+
regulator-name = "va";
298
+
regulator-min-microvolt = <2800000>;
299
+
regulator-max-microvolt = <2800000>;
300
+
regulator-enable-ramp-delay = <216>;
301
+
regulator-always-on;
302
+
regulator-boot-on;
303
+
};
304
+
305
+
ldo_vcama {
306
+
regulator-name = "vcama";
307
+
regulator-min-microvolt = <1500000>;
308
+
regulator-max-microvolt = <2800000>;
309
+
regulator-enable-ramp-delay = <216>;
310
+
};
311
+
312
+
ldo_vio28 {
313
+
regulator-name = "vio28";
314
+
regulator-min-microvolt = <2800000>;
315
+
regulator-max-microvolt = <2800000>;
316
+
regulator-enable-ramp-delay = <216>;
317
+
regulator-always-on;
318
+
regulator-boot-on;
319
+
};
320
+
321
+
ldo_vusb {
322
+
regulator-name = "vusb";
323
+
regulator-min-microvolt = <3300000>;
324
+
regulator-max-microvolt = <3300000>;
325
+
regulator-enable-ramp-delay = <216>;
326
+
regulator-boot-on;
327
+
};
328
+
329
+
ldo_vmc {
330
+
regulator-name = "vmc";
331
+
regulator-min-microvolt = <1800000>;
332
+
regulator-max-microvolt = <3300000>;
333
+
regulator-enable-ramp-delay = <36>;
334
+
regulator-boot-on;
335
+
};
336
+
337
+
ldo_vmch {
338
+
regulator-name = "vmch";
339
+
regulator-min-microvolt = <3000000>;
340
+
regulator-max-microvolt = <3300000>;
341
+
regulator-enable-ramp-delay = <36>;
342
+
regulator-boot-on;
343
+
};
344
+
345
+
ldo_vemc3v3 {
346
+
regulator-name = "vemc3v3";
347
+
regulator-min-microvolt = <3000000>;
348
+
regulator-max-microvolt = <3300000>;
349
+
regulator-enable-ramp-delay = <36>;
350
+
regulator-boot-on;
351
+
};
352
+
353
+
ldo_vgp1 {
354
+
regulator-name = "vgp1";
355
+
regulator-min-microvolt = <1200000>;
356
+
regulator-max-microvolt = <3300000>;
357
+
regulator-enable-ramp-delay = <216>;
358
+
};
359
+
360
+
ldo_vgp2 {
361
+
regulator-name = "vgp2";
362
+
regulator-min-microvolt = <1200000>;
363
+
regulator-max-microvolt = <3000000>;
364
+
regulator-enable-ramp-delay = <216>;
365
+
};
366
+
367
+
ldo_vgp3 {
368
+
regulator-name = "vgp3";
369
+
regulator-min-microvolt = <1200000>;
370
+
regulator-max-microvolt = <1800000>;
371
+
regulator-enable-ramp-delay = <216>;
372
+
};
373
+
374
+
ldo_vcn18 {
375
+
regulator-name = "vcn18";
376
+
regulator-min-microvolt = <1800000>;
377
+
regulator-max-microvolt = <1800000>;
378
+
regulator-enable-ramp-delay = <216>;
379
+
};
380
+
381
+
ldo_vsim1 {
382
+
regulator-name = "vsim1";
383
+
regulator-min-microvolt = <1800000>;
384
+
regulator-max-microvolt = <3000000>;
385
+
regulator-enable-ramp-delay = <216>;
386
+
};
387
+
388
+
ldo_vsim2 {
389
+
regulator-name = "vsim2";
390
+
regulator-min-microvolt = <1800000>;
391
+
regulator-max-microvolt = <3000000>;
392
+
regulator-enable-ramp-delay = <216>;
393
+
};
394
+
395
+
ldo_vrtc {
396
+
regulator-name = "vrtc";
397
+
regulator-min-microvolt = <2800000>;
398
+
regulator-max-microvolt = <2800000>;
399
+
regulator-always-on;
400
+
regulator-boot-on;
401
+
};
402
+
403
+
ldo_vcamaf {
404
+
regulator-name = "vcamaf";
405
+
regulator-min-microvolt = <1200000>;
406
+
regulator-max-microvolt = <3300000>;
407
+
regulator-enable-ramp-delay = <216>;
408
+
};
409
+
410
+
ldo_vibr {
411
+
regulator-name = "vibr";
412
+
regulator-min-microvolt = <1200000>;
413
+
regulator-max-microvolt = <3300000>;
414
+
regulator-enable-ramp-delay = <36>;
415
+
};
416
+
417
+
ldo_vrf18 {
418
+
regulator-name = "vrf18";
419
+
regulator-min-microvolt = <1825000>;
420
+
regulator-max-microvolt = <1825000>;
421
+
regulator-enable-ramp-delay = <187>;
422
+
};
423
+
424
+
ldo_vm {
425
+
regulator-name = "vm";
426
+
regulator-min-microvolt = <1200000>;
427
+
regulator-max-microvolt = <1800000>;
428
+
regulator-enable-ramp-delay = <216>;
429
+
regulator-always-on;
430
+
regulator-boot-on;
431
+
};
432
+
433
+
ldo_vio18 {
434
+
regulator-name = "vio18";
435
+
regulator-min-microvolt = <1800000>;
436
+
regulator-max-microvolt = <1800000>;
437
+
regulator-enable-ramp-delay = <216>;
438
+
regulator-always-on;
439
+
regulator-boot-on;
440
+
};
441
+
442
+
ldo_vcamd {
443
+
regulator-name = "vcamd";
444
+
regulator-min-microvolt = <1200000>;
445
+
regulator-max-microvolt = <1800000>;
446
+
regulator-enable-ramp-delay = <216>;
447
+
};
448
+
449
+
ldo_vcamio {
450
+
regulator-name = "vcamio";
451
+
regulator-min-microvolt = <1800000>;
452
+
regulator-max-microvolt = <1800000>;
453
+
regulator-enable-ramp-delay = <216>;
454
+
};
455
+
};
456
+
457
+
keys {
458
+
compatible = "mediatek,mt6323-keys";
459
+
mediatek,long-press-mode = <1>;
460
+
power-off-time-sec = <0>;
461
+
462
+
power {
463
+
linux,keycodes = <116>;
464
+
wakeup-source;
465
+
};
466
+
467
+
home {
468
+
linux,keycodes = <114>;
469
+
};
470
+
};
471
+
472
+
power-controller {
473
+
compatible = "mediatek,mt6323-pwrc";
474
+
#power-domain-cells = <0>;
475
+
};
476
+
477
+
rtc {
478
+
compatible = "mediatek,mt6323-rtc";
479
+
};
480
+
};
481
+
482
+
- |
483
+
#include <dt-bindings/input/input.h>
484
+
#include <dt-bindings/interrupt-controller/arm-gic.h>
485
+
486
+
pmic {
487
+
compatible = "mediatek,mt6358";
488
+
interrupt-controller;
489
+
#interrupt-cells = <2>;
490
+
491
+
audio-codec {
492
+
compatible = "mediatek,mt6358-sound";
493
+
Avdd-supply = <&mt6358_vaud28_reg>;
494
+
mediatek,dmic-mode = <0>;
495
+
};
496
+
497
+
regulators {
498
+
compatible = "mediatek,mt6358-regulator";
499
+
500
+
buck_vdram1 {
501
+
regulator-name = "vdram1";
502
+
regulator-min-microvolt = <500000>;
503
+
regulator-max-microvolt = <2087500>;
504
+
regulator-ramp-delay = <12500>;
505
+
regulator-enable-ramp-delay = <0>;
506
+
regulator-always-on;
507
+
regulator-allowed-modes = <0 1>;
508
+
};
509
+
510
+
// ...
511
+
512
+
ldo_vsim2 {
513
+
regulator-name = "vsim2";
514
+
regulator-min-microvolt = <1700000>;
515
+
regulator-max-microvolt = <3100000>;
516
+
regulator-enable-ramp-delay = <540>;
517
+
};
518
+
};
519
+
520
+
rtc {
521
+
compatible = "mediatek,mt6358-rtc";
522
+
};
523
+
524
+
keys {
525
+
compatible = "mediatek,mt6358-keys";
526
+
527
+
power {
528
+
linux,keycodes = <KEY_POWER>;
529
+
wakeup-source;
530
+
};
531
+
532
+
home {
533
+
linux,keycodes = <KEY_HOME>;
534
+
};
535
+
};
536
+
};
537
+
538
+
- |
539
+
#include <dt-bindings/interrupt-controller/arm-gic.h>
540
+
541
+
pmic {
542
+
compatible = "mediatek,mt6397";
543
+
544
+
interrupt-parent = <&pio>;
545
+
interrupts-extended = <&pio 222 IRQ_TYPE_LEVEL_HIGH>;
546
+
interrupt-controller;
547
+
#interrupt-cells = <2>;
548
+
549
+
audio-codec {
550
+
compatible = "mediatek,mt6397-codec";
551
+
};
552
+
553
+
clocks {
554
+
compatible = "mediatek,mt6397-clk";
555
+
#clock-cells = <1>;
556
+
};
557
+
558
+
pinctrl {
559
+
compatible = "mediatek,mt6397-pinctrl";
560
+
gpio-controller;
561
+
#gpio-cells = <2>;
562
+
};
563
+
564
+
regulators {
565
+
compatible = "mediatek,mt6397-regulator";
566
+
567
+
buck_vpca15 {
568
+
regulator-name = "vpca15";
569
+
regulator-min-microvolt = < 850000>;
570
+
regulator-max-microvolt = <1350000>;
571
+
regulator-ramp-delay = <12500>;
572
+
regulator-enable-ramp-delay = <200>;
573
+
};
574
+
575
+
// ...
576
+
577
+
ldo_vibr {
578
+
regulator-name = "vibr";
579
+
regulator-min-microvolt = <1200000>;
580
+
regulator-max-microvolt = <3300000>;
581
+
regulator-enable-ramp-delay = <218>;
582
+
};
583
+
};
584
+
585
+
rtc {
586
+
compatible = "mediatek,mt6397-rtc";
587
+
};
588
+
};
-110
Documentation/devicetree/bindings/mfd/mt6397.txt
-110
Documentation/devicetree/bindings/mfd/mt6397.txt
···
1
-
MediaTek MT6397/MT6323 Multifunction Device Driver
2
-
3
-
MT6397/MT6323 is a multifunction device with the following sub modules:
4
-
- Regulator
5
-
- RTC
6
-
- Audio codec
7
-
- GPIO
8
-
- Clock
9
-
- LED
10
-
- Keys
11
-
- Power controller
12
-
13
-
It is interfaced to host controller using SPI interface by a proprietary hardware
14
-
called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap.
15
-
See the following for pwarp node definitions:
16
-
../soc/mediatek/mediatek,pwrap.yaml
17
-
18
-
This document describes the binding for MFD device and its sub module.
19
-
20
-
Required properties:
21
-
compatible:
22
-
"mediatek,mt6323" for PMIC MT6323
23
-
"mediatek,mt6331" for PMIC MT6331 and MT6332
24
-
"mediatek,mt6357" for PMIC MT6357
25
-
"mediatek,mt6358" for PMIC MT6358
26
-
"mediatek,mt6359" for PMIC MT6359
27
-
"mediatek,mt6366", "mediatek,mt6358" for PMIC MT6366
28
-
"mediatek,mt6397" for PMIC MT6397
29
-
30
-
Optional subnodes:
31
-
32
-
- rtc
33
-
Required properties: Should be one of follows
34
-
- compatible: "mediatek,mt6323-rtc"
35
-
- compatible: "mediatek,mt6331-rtc"
36
-
- compatible: "mediatek,mt6358-rtc"
37
-
- compatible: "mediatek,mt6397-rtc"
38
-
For details, see ../rtc/rtc-mt6397.txt
39
-
- regulators
40
-
Required properties:
41
-
- compatible: "mediatek,mt6323-regulator"
42
-
see ../regulator/mt6323-regulator.txt
43
-
- compatible: "mediatek,mt6358-regulator"
44
-
- compatible: "mediatek,mt6366-regulator", "mediatek-mt6358-regulator"
45
-
see ../regulator/mt6358-regulator.txt
46
-
- compatible: "mediatek,mt6397-regulator"
47
-
see ../regulator/mt6397-regulator.txt
48
-
- codec
49
-
Required properties:
50
-
- compatible: "mediatek,mt6397-codec" or "mediatek,mt6358-sound"
51
-
- clk
52
-
Required properties:
53
-
- compatible: "mediatek,mt6397-clk"
54
-
- led
55
-
Required properties:
56
-
- compatible: "mediatek,mt6323-led"
57
-
see ../leds/leds-mt6323.txt
58
-
59
-
- keys
60
-
Required properties: Should be one of the following
61
-
- compatible: "mediatek,mt6323-keys"
62
-
- compatible: "mediatek,mt6331-keys"
63
-
- compatible: "mediatek,mt6397-keys"
64
-
see ../input/mtk-pmic-keys.txt
65
-
66
-
- power-controller
67
-
Required properties:
68
-
- compatible: "mediatek,mt6323-pwrc"
69
-
For details, see ../power/reset/mt6323-poweroff.txt
70
-
71
-
- pin-controller
72
-
Required properties:
73
-
- compatible: "mediatek,mt6397-pinctrl"
74
-
For details, see ../pinctrl/pinctrl-mt65xx.txt
75
-
76
-
Example:
77
-
pwrap: pwrap@1000f000 {
78
-
compatible = "mediatek,mt8135-pwrap";
79
-
80
-
...
81
-
82
-
pmic {
83
-
compatible = "mediatek,mt6397";
84
-
85
-
codec: mt6397codec {
86
-
compatible = "mediatek,mt6397-codec";
87
-
};
88
-
89
-
regulators {
90
-
compatible = "mediatek,mt6397-regulator";
91
-
92
-
mt6397_vpca15_reg: buck_vpca15 {
93
-
regulator-compatible = "buck_vpca15";
94
-
regulator-name = "vpca15";
95
-
regulator-min-microvolt = <850000>;
96
-
regulator-max-microvolt = <1400000>;
97
-
regulator-ramp-delay = <12500>;
98
-
regulator-always-on;
99
-
};
100
-
101
-
mt6397_vgp4_reg: ldo_vgp4 {
102
-
regulator-compatible = "ldo_vgp4";
103
-
regulator-name = "vgp4";
104
-
regulator-min-microvolt = <1200000>;
105
-
regulator-max-microvolt = <3300000>;
106
-
regulator-enable-ramp-delay = <218>;
107
-
};
108
-
};
109
-
};
110
-
};
-20
Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt
-20
Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt
···
1
-
Device Tree Bindings for Power Controller on MediaTek PMIC
2
-
3
-
The power controller which could be found on PMIC is responsible for externally
4
-
powering off or on the remote MediaTek SoC through the circuit BBPU.
5
-
6
-
Required properties:
7
-
- compatible: Should be one of follows
8
-
"mediatek,mt6323-pwrc": for MT6323 PMIC
9
-
10
-
Example:
11
-
12
-
pmic {
13
-
compatible = "mediatek,mt6323";
14
-
15
-
...
16
-
17
-
power-controller {
18
-
compatible = "mediatek,mt6323-pwrc";
19
-
};
20
-
}
-31
Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
-31
Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
···
1
-
Device-Tree bindings for MediaTek PMIC based RTC
2
-
3
-
MediaTek PMIC based RTC is an independent function of MediaTek PMIC that works
4
-
as a type of multi-function device (MFD). The RTC can be configured and set up
5
-
with PMIC wrapper bus which is a common resource shared with the other
6
-
functions found on the same PMIC.
7
-
8
-
For MediaTek PMIC MFD bindings, see:
9
-
../mfd/mt6397.txt
10
-
11
-
For MediaTek PMIC wrapper bus bindings, see:
12
-
../soc/mediatek/pwrap.txt
13
-
14
-
Required properties:
15
-
- compatible: Should be one of follows
16
-
"mediatek,mt6323-rtc": for MT6323 PMIC
17
-
"mediatek,mt6358-rtc": for MT6358 PMIC
18
-
"mediatek,mt6366-rtc", "mediatek,mt6358-rtc": for MT6366 PMIC
19
-
"mediatek,mt6397-rtc": for MT6397 PMIC
20
-
21
-
Example:
22
-
23
-
pmic {
24
-
compatible = "mediatek,mt6323";
25
-
26
-
...
27
-
28
-
rtc {
29
-
compatible = "mediatek,mt6323-rtc";
30
-
};
31
-
};
+6
-2
MAINTAINERS
+6
-2
MAINTAINERS
···
14420
14420
F: drivers/bluetooth/btmtkuart.c
14421
14421
14422
14422
MEDIATEK BOARD LEVEL SHUTDOWN DRIVERS
14423
+
M: Sen Chu <sen.chu@mediatek.com>
14423
14424
M: Sean Wang <sean.wang@mediatek.com>
14425
+
M: Macpaul Lin <macpaul.lin@mediatek.com>
14424
14426
L: linux-pm@vger.kernel.org
14425
14427
S: Maintained
14426
-
F: Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt
14428
+
F: Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
14427
14429
F: drivers/power/reset/mt6323-poweroff.c
14428
14430
14429
14431
MEDIATEK CIR DRIVER
···
14586
14584
F: drivers/mtd/nand/raw/mtk_*
14587
14585
14588
14586
MEDIATEK PMIC LED DRIVER
14587
+
M: Sen Chu <sen.chu@mediatek.com>
14589
14588
M: Sean Wang <sean.wang@mediatek.com>
14589
+
M: Macpaul Lin <macpaul.lin@mediatek.com>
14590
14590
S: Maintained
14591
-
F: Documentation/devicetree/bindings/leds/leds-mt6323.txt
14591
+
F: Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
14592
14592
F: drivers/leds/leds-mt6323.c
14593
14593
14594
14594
MEDIATEK RANDOM NUMBER GENERATOR SUPPORT