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dt-bindings: mfd: mediatek: mt6397: Convert to DT schema format

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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>
This commit is contained in:
Macpaul Lin 2024-10-01 18:41:45 +08:00 committed by Lee Jones
parent 9852d85ec9
commit 6e357f5726
7 changed files with 595 additions and 227 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/input/mediatek,pmic-keys.yaml
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@ -19,7 +19,7 @@ description: |
by the PMIC that is defined as a Multi-Function Device (MFD).
For MediaTek MT6323/MT6397 PMIC bindings see
Documentation/devicetree/bindings/mfd/mt6397.txt
Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
properties:
compatible:

63
Documentation/devicetree/bindings/leds/leds-mt6323.txt
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@ -1,63 +0,0 @@
Device Tree Bindings for LED support on MT6323 PMIC
MT6323 LED controller is subfunction provided by MT6323 PMIC, so the LED
controllers are defined as the subnode of the function node provided by MT6323
PMIC controller that is being defined as one kind of Muti-Function Device (MFD)
using shared bus called PMIC wrapper for each subfunction to access remote
MT6323 PMIC hardware.
For MT6323 MFD bindings see:
Documentation/devicetree/bindings/mfd/mt6397.txt
For MediaTek PMIC wrapper bindings see:
Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
Required properties:
- compatible : Must be one of
- "mediatek,mt6323-led"
- "mediatek,mt6331-led"
- "mediatek,mt6332-led"
- address-cells : Must be 1
- size-cells : Must be 0
Each led is represented as a child node of the mediatek,mt6323-led that
describes the initial behavior for each LED physically and currently only four
LED child nodes can be supported.
Required properties for the LED child node:
- reg : LED channel number (0..3)
Optional properties for the LED child node:
- label : See Documentation/devicetree/bindings/leds/common.txt
- linux,default-trigger : See Documentation/devicetree/bindings/leds/common.txt
- default-state: See Documentation/devicetree/bindings/leds/common.txt
Example:
mt6323: pmic {
compatible = "mediatek,mt6323";
...
mt6323led: leds {
compatible = "mediatek,mt6323-led";
#address-cells = <1>;
#size-cells = <0>;
led@0 {
reg = <0>;
label = "LED0";
linux,default-trigger = "timer";
default-state = "on";
};
led@1 {
reg = <1>;
label = "LED1";
default-state = "off";
};
led@2 {
reg = <2>;
label = "LED2";
default-state = "on";
};
};
};

588
Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml Normal file
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@ -0,0 +1,588 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/mediatek,mt6397.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek MT6397/MT6323 PMIC
maintainers:
- Sen Chu <sen.chu@mediatek.com>
- Macpaul Lin <macpaul.lin@mediatek.com>
description: |
MT6397/MT6323 is a power management system chip.
Please see the sub-modules below for supported features.
MT6397/MT6323 is a multifunction device with the following sub modules:
- Regulators
- RTC
- Audio codec
- GPIO
- Clock
- LED
- Keys
- Power controller
It is interfaced to host controller using SPI interface by a proprietary hardware
called PMIC wrapper or pwrap. MT6397/MT6323 PMIC is a child device of pwrap.
See the following for pwrap node definitions:
Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
properties:
compatible:
oneOf:
- enum:
- mediatek,mt6323
- mediatek,mt6331 # "mediatek,mt6331" for PMIC MT6331 and MT6332.
- mediatek,mt6358
- mediatek,mt6359
- mediatek,mt6397
- items:
- enum:
- mediatek,mt6366
- const: mediatek,mt6358
interrupts:
maxItems: 1
interrupt-controller: true
"#interrupt-cells":
const: 2
rtc:
type: object
$ref: /schemas/rtc/rtc.yaml#
unevaluatedProperties: false
description:
MT6397 Real Time Clock.
properties:
compatible:
oneOf:
- enum:
- mediatek,mt6323-rtc
- mediatek,mt6331-rtc
- mediatek,mt6358-rtc
- mediatek,mt6397-rtc
- items:
- enum:
- mediatek,mt6366-rtc
- const: mediatek,mt6358-rtc
required:
- compatible
regulators:
type: object
description:
List of child nodes that specify the regulators.
additionalProperties: true
properties:
compatible:
oneOf:
- enum:
- mediatek,mt6323-regulator
- mediatek,mt6358-regulator
- mediatek,mt6397-regulator
- items:
- enum:
- mediatek,mt6366-regulator
- const: mediatek,mt6358-regulator
required:
- compatible
audio-codec:
type: object
description:
Audio codec support with MT6358 and MT6397.
additionalProperties: true
properties:
compatible:
oneOf:
- enum:
- mediatek,mt6358-sound
- mediatek,mt6397-codec
- items:
- enum:
- mediatek,mt6366-sound
- const: mediatek,mt6358-sound
required:
- compatible
clocks:
type: object
additionalProperties: false
description:
This is a clock buffer node for mt6397. However, there are no sub nodes
or any public document exposed in public.
properties:
compatible:
const: mediatek,mt6397-clk
'#clock-cells':
const: 1
required:
- compatible
leds:
type: object
additionalProperties: false
description: |
MT6323 LED controller is subfunction provided by MT6323 PMIC, so the LED
controllers are defined as the subnode of the function node provided by MT6323
PMIC controller that is being defined as one kind of Muti-Function Device (MFD)
using shared bus called PMIC wrapper for each subfunction to access remote
MT6323 PMIC hardware.
Each led is represented as a child node of the mediatek,mt6323-led that
describes the initial behavior for each LED physically and currently only four
LED child nodes can be supported.
properties:
compatible:
enum:
- mediatek,mt6323-led
- mediatek,mt6331-led
- mediatek,mt6332-led
reg:
maxItems: 1
"#address-cells":
const: 1
"#size-cells":
const: 0
patternProperties:
"^led@[0-3]$":
type: object
$ref: /schemas/leds/common.yaml#
unevaluatedProperties: false
properties:
reg:
description:
LED channel number (0..3)
minimum: 0
maximum: 3
required:
- reg
required:
- compatible
- "#address-cells"
- "#size-cells"
keys:
type: object
$ref: /schemas/input/mediatek,pmic-keys.yaml
unevaluatedProperties: false
description:
Power and Home keys.
power-controller:
type: object
additionalProperties: false
description:
The power controller which could be found on PMIC is responsible for
externally powering off or on the remote MediaTek SoC through the
circuit BBPU (baseband power up).
properties:
compatible:
const: mediatek,mt6323-pwrc
'#power-domain-cells':
const: 0
pinctrl:
type: object
$ref: /schemas/pinctrl/mediatek,mt65xx-pinctrl.yaml
unevaluatedProperties: false
description:
Pin controller
required:
- compatible
- regulators
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/leds/common.h>
pmic {
compatible = "mediatek,mt6323";
interrupt-parent = <&pio>;
interrupts = <150 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <2>;
leds {
compatible = "mediatek,mt6323-led";
#address-cells = <1>;
#size-cells = <0>;
};
regulators {
compatible = "mediatek,mt6323-regulator";
buck_vproc {
regulator-name = "vproc";
regulator-min-microvolt = < 700000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12500>;
regulator-always-on;
regulator-boot-on;
};
buck_vsys {
regulator-name = "vsys";
regulator-min-microvolt = <1400000>;
regulator-max-microvolt = <2987500>;
regulator-ramp-delay = <25000>;
regulator-always-on;
regulator-boot-on;
};
buck_vpa {
regulator-name = "vpa";
regulator-min-microvolt = < 500000>;
regulator-max-microvolt = <3650000>;
};
ldo_vtcxo {
regulator-name = "vtcxo";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-enable-ramp-delay = <90>;
regulator-always-on;
regulator-boot-on;
};
ldo_vcn28 {
regulator-name = "vcn28";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-enable-ramp-delay = <185>;
};
ldo_vcn33_bt {
regulator-name = "vcn33_bt";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3600000>;
regulator-enable-ramp-delay = <185>;
};
ldo_vcn33_wifi {
regulator-name = "vcn33_wifi";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3600000>;
regulator-enable-ramp-delay = <185>;
};
ldo_va {
regulator-name = "va";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-enable-ramp-delay = <216>;
regulator-always-on;
regulator-boot-on;
};
ldo_vcama {
regulator-name = "vcama";
regulator-min-microvolt = <1500000>;
regulator-max-microvolt = <2800000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vio28 {
regulator-name = "vio28";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-enable-ramp-delay = <216>;
regulator-always-on;
regulator-boot-on;
};
ldo_vusb {
regulator-name = "vusb";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <216>;
regulator-boot-on;
};
ldo_vmc {
regulator-name = "vmc";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <36>;
regulator-boot-on;
};
ldo_vmch {
regulator-name = "vmch";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <36>;
regulator-boot-on;
};
ldo_vemc3v3 {
regulator-name = "vemc3v3";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <36>;
regulator-boot-on;
};
ldo_vgp1 {
regulator-name = "vgp1";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vgp2 {
regulator-name = "vgp2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3000000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vgp3 {
regulator-name = "vgp3";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1800000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vcn18 {
regulator-name = "vcn18";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vsim1 {
regulator-name = "vsim1";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3000000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vsim2 {
regulator-name = "vsim2";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3000000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vrtc {
regulator-name = "vrtc";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
regulator-boot-on;
};
ldo_vcamaf {
regulator-name = "vcamaf";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vibr {
regulator-name = "vibr";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <36>;
};
ldo_vrf18 {
regulator-name = "vrf18";
regulator-min-microvolt = <1825000>;
regulator-max-microvolt = <1825000>;
regulator-enable-ramp-delay = <187>;
};
ldo_vm {
regulator-name = "vm";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1800000>;
regulator-enable-ramp-delay = <216>;
regulator-always-on;
regulator-boot-on;
};
ldo_vio18 {
regulator-name = "vio18";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-enable-ramp-delay = <216>;
regulator-always-on;
regulator-boot-on;
};
ldo_vcamd {
regulator-name = "vcamd";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1800000>;
regulator-enable-ramp-delay = <216>;
};
ldo_vcamio {
regulator-name = "vcamio";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-enable-ramp-delay = <216>;
};
};
keys {
compatible = "mediatek,mt6323-keys";
mediatek,long-press-mode = <1>;
power-off-time-sec = <0>;
power {
linux,keycodes = <116>;
wakeup-source;
};
home {
linux,keycodes = <114>;
};
};
power-controller {
compatible = "mediatek,mt6323-pwrc";
#power-domain-cells = <0>;
};
rtc {
compatible = "mediatek,mt6323-rtc";
};
};
- |
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
pmic {
compatible = "mediatek,mt6358";
interrupt-controller;
#interrupt-cells = <2>;
audio-codec {
compatible = "mediatek,mt6358-sound";
Avdd-supply = <&mt6358_vaud28_reg>;
mediatek,dmic-mode = <0>;
};
regulators {
compatible = "mediatek,mt6358-regulator";
buck_vdram1 {
regulator-name = "vdram1";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <2087500>;
regulator-ramp-delay = <12500>;
regulator-enable-ramp-delay = <0>;
regulator-always-on;
regulator-allowed-modes = <0 1>;
};
// ...
ldo_vsim2 {
regulator-name = "vsim2";
regulator-min-microvolt = <1700000>;
regulator-max-microvolt = <3100000>;
regulator-enable-ramp-delay = <540>;
};
};
rtc {
compatible = "mediatek,mt6358-rtc";
};
keys {
compatible = "mediatek,mt6358-keys";
power {
linux,keycodes = <KEY_POWER>;
wakeup-source;
};
home {
linux,keycodes = <KEY_HOME>;
};
};
};
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
pmic {
compatible = "mediatek,mt6397";
interrupt-parent = <&pio>;
interrupts-extended = <&pio 222 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <2>;
audio-codec {
compatible = "mediatek,mt6397-codec";
};
clocks {
compatible = "mediatek,mt6397-clk";
#clock-cells = <1>;
};
pinctrl {
compatible = "mediatek,mt6397-pinctrl";
gpio-controller;
#gpio-cells = <2>;
};
regulators {
compatible = "mediatek,mt6397-regulator";
buck_vpca15 {
regulator-name = "vpca15";
regulator-min-microvolt = < 850000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12500>;
regulator-enable-ramp-delay = <200>;
};
// ...
ldo_vibr {
regulator-name = "vibr";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <218>;
};
};
rtc {
compatible = "mediatek,mt6397-rtc";
};
};

110
Documentation/devicetree/bindings/mfd/mt6397.txt
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@ -1,110 +0,0 @@
MediaTek MT6397/MT6323 Multifunction Device Driver
MT6397/MT6323 is a multifunction device with the following sub modules:
- Regulator
- RTC
- Audio codec
- GPIO
- Clock
- LED
- Keys
- Power controller
It is interfaced to host controller using SPI interface by a proprietary hardware
called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap.
See the following for pwarp node definitions:
../soc/mediatek/mediatek,pwrap.yaml
This document describes the binding for MFD device and its sub module.
Required properties:
compatible:
"mediatek,mt6323" for PMIC MT6323
"mediatek,mt6331" for PMIC MT6331 and MT6332
"mediatek,mt6357" for PMIC MT6357
"mediatek,mt6358" for PMIC MT6358
"mediatek,mt6359" for PMIC MT6359
"mediatek,mt6366", "mediatek,mt6358" for PMIC MT6366
"mediatek,mt6397" for PMIC MT6397
Optional subnodes:
- rtc
Required properties: Should be one of follows
- compatible: "mediatek,mt6323-rtc"
- compatible: "mediatek,mt6331-rtc"
- compatible: "mediatek,mt6358-rtc"
- compatible: "mediatek,mt6397-rtc"
For details, see ../rtc/rtc-mt6397.txt
- regulators
Required properties:
- compatible: "mediatek,mt6323-regulator"
see ../regulator/mt6323-regulator.txt
- compatible: "mediatek,mt6358-regulator"
- compatible: "mediatek,mt6366-regulator", "mediatek-mt6358-regulator"
see ../regulator/mt6358-regulator.txt
- compatible: "mediatek,mt6397-regulator"
see ../regulator/mt6397-regulator.txt
- codec
Required properties:
- compatible: "mediatek,mt6397-codec" or "mediatek,mt6358-sound"
- clk
Required properties:
- compatible: "mediatek,mt6397-clk"
- led
Required properties:
- compatible: "mediatek,mt6323-led"
see ../leds/leds-mt6323.txt
- keys
Required properties: Should be one of the following
- compatible: "mediatek,mt6323-keys"
- compatible: "mediatek,mt6331-keys"
- compatible: "mediatek,mt6397-keys"
see ../input/mtk-pmic-keys.txt
- power-controller
Required properties:
- compatible: "mediatek,mt6323-pwrc"
For details, see ../power/reset/mt6323-poweroff.txt
- pin-controller
Required properties:
- compatible: "mediatek,mt6397-pinctrl"
For details, see ../pinctrl/pinctrl-mt65xx.txt
Example:
pwrap: pwrap@1000f000 {
compatible = "mediatek,mt8135-pwrap";
...
pmic {
compatible = "mediatek,mt6397";
codec: mt6397codec {
compatible = "mediatek,mt6397-codec";
};
regulators {
compatible = "mediatek,mt6397-regulator";
mt6397_vpca15_reg: buck_vpca15 {
regulator-compatible = "buck_vpca15";
regulator-name = "vpca15";
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <1400000>;
regulator-ramp-delay = <12500>;
regulator-always-on;
};
mt6397_vgp4_reg: ldo_vgp4 {
regulator-compatible = "ldo_vgp4";
regulator-name = "vgp4";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3300000>;
regulator-enable-ramp-delay = <218>;
};
};
};
};

20
Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt
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@ -1,20 +0,0 @@
Device Tree Bindings for Power Controller on MediaTek PMIC
The power controller which could be found on PMIC is responsible for externally
powering off or on the remote MediaTek SoC through the circuit BBPU.
Required properties:
- compatible: Should be one of follows
"mediatek,mt6323-pwrc": for MT6323 PMIC
Example:
pmic {
compatible = "mediatek,mt6323";
...
power-controller {
compatible = "mediatek,mt6323-pwrc";
};
}

31
Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
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@ -1,31 +0,0 @@
Device-Tree bindings for MediaTek PMIC based RTC
MediaTek PMIC based RTC is an independent function of MediaTek PMIC that works
as a type of multi-function device (MFD). The RTC can be configured and set up
with PMIC wrapper bus which is a common resource shared with the other
functions found on the same PMIC.
For MediaTek PMIC MFD bindings, see:
../mfd/mt6397.txt
For MediaTek PMIC wrapper bus bindings, see:
../soc/mediatek/pwrap.txt
Required properties:
- compatible: Should be one of follows
"mediatek,mt6323-rtc": for MT6323 PMIC
"mediatek,mt6358-rtc": for MT6358 PMIC
"mediatek,mt6366-rtc", "mediatek,mt6358-rtc": for MT6366 PMIC
"mediatek,mt6397-rtc": for MT6397 PMIC
Example:
pmic {
compatible = "mediatek,mt6323";
...
rtc {
compatible = "mediatek,mt6323-rtc";
};
};

8
MAINTAINERS
View File

@ -14420,10 +14420,12 @@ F: Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.ya
F: drivers/bluetooth/btmtkuart.c
MEDIATEK BOARD LEVEL SHUTDOWN DRIVERS
M: Sen Chu <sen.chu@mediatek.com>
M: Sean Wang <sean.wang@mediatek.com>
M: Macpaul Lin <macpaul.lin@mediatek.com>
L: linux-pm@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt
F: Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
F: drivers/power/reset/mt6323-poweroff.c
MEDIATEK CIR DRIVER
@ -14584,9 +14586,11 @@ F: Documentation/devicetree/bindings/mtd/mediatek,mtk-nfc.yaml
F: drivers/mtd/nand/raw/mtk_*
MEDIATEK PMIC LED DRIVER
M: Sen Chu <sen.chu@mediatek.com>
M: Sean Wang <sean.wang@mediatek.com>
M: Macpaul Lin <macpaul.lin@mediatek.com>
S: Maintained
F: Documentation/devicetree/bindings/leds/leds-mt6323.txt
F: Documentation/devicetree/bindings/mfd/mediatek,mt6397.yaml
F: drivers/leds/leds-mt6323.c
MEDIATEK RANDOM NUMBER GENERATOR SUPPORT