1 MediaTek MT6397/MT6323 Multifunction Device Dr 1 MediaTek MT6397/MT6323 Multifunction Device Driver
2 2
3 MT6397/MT6323 is a multifunction device with t 3 MT6397/MT6323 is a multifunction device with the following sub modules:
4 - Regulator 4 - Regulator
5 - RTC 5 - RTC
6 - Audio codec 6 - Audio codec
7 - GPIO 7 - GPIO
8 - Clock 8 - Clock
9 - LED 9 - LED
10 - Keys 10 - Keys
11 - Power controller 11 - Power controller
12 12
13 It is interfaced to host controller using SPI 13 It is interfaced to host controller using SPI interface by a proprietary hardware
14 called PMIC wrapper or pwrap. MT6397/MT6323 MF 14 called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap.
15 See the following for pwarp node definitions: 15 See the following for pwarp node definitions:
16 ../soc/mediatek/mediatek,pwrap.yaml 16 ../soc/mediatek/mediatek,pwrap.yaml
17 17
18 This document describes the binding for MFD de 18 This document describes the binding for MFD device and its sub module.
19 19
20 Required properties: 20 Required properties:
21 compatible: 21 compatible:
22 "mediatek,mt6323" for PMIC MT6323 22 "mediatek,mt6323" for PMIC MT6323
23 "mediatek,mt6331" for PMIC MT6331 and 23 "mediatek,mt6331" for PMIC MT6331 and MT6332
24 "mediatek,mt6357" for PMIC MT6357 24 "mediatek,mt6357" for PMIC MT6357
25 "mediatek,mt6358" for PMIC MT6358 25 "mediatek,mt6358" for PMIC MT6358
26 "mediatek,mt6359" for PMIC MT6359 26 "mediatek,mt6359" for PMIC MT6359
27 "mediatek,mt6366", "mediatek,mt6358" f 27 "mediatek,mt6366", "mediatek,mt6358" for PMIC MT6366
28 "mediatek,mt6397" for PMIC MT6397 28 "mediatek,mt6397" for PMIC MT6397
29 29
30 Optional subnodes: 30 Optional subnodes:
31 31
32 - rtc 32 - rtc
33 Required properties: Should be one of 33 Required properties: Should be one of follows
34 - compatible: "mediatek,mt6323 34 - compatible: "mediatek,mt6323-rtc"
35 - compatible: "mediatek,mt6331 35 - compatible: "mediatek,mt6331-rtc"
36 - compatible: "mediatek,mt6358 36 - compatible: "mediatek,mt6358-rtc"
37 - compatible: "mediatek,mt6397 37 - compatible: "mediatek,mt6397-rtc"
38 For details, see ../rtc/rtc-mt6397.txt 38 For details, see ../rtc/rtc-mt6397.txt
39 - regulators 39 - regulators
40 Required properties: 40 Required properties:
41 - compatible: "mediatek,mt6323 41 - compatible: "mediatek,mt6323-regulator"
42 see ../regulator/mt6323-regulator.txt 42 see ../regulator/mt6323-regulator.txt
43 - compatible: "mediatek,mt6358 43 - compatible: "mediatek,mt6358-regulator"
44 - compatible: "mediatek,mt6366 44 - compatible: "mediatek,mt6366-regulator", "mediatek-mt6358-regulator"
45 see ../regulator/mt6358-regulator.txt 45 see ../regulator/mt6358-regulator.txt
46 - compatible: "mediatek,mt6397 46 - compatible: "mediatek,mt6397-regulator"
47 see ../regulator/mt6397-regulator.txt 47 see ../regulator/mt6397-regulator.txt
48 - codec 48 - codec
49 Required properties: 49 Required properties:
50 - compatible: "mediatek,mt6397 50 - compatible: "mediatek,mt6397-codec" or "mediatek,mt6358-sound"
51 - clk 51 - clk
52 Required properties: 52 Required properties:
53 - compatible: "mediatek,mt6397 53 - compatible: "mediatek,mt6397-clk"
54 - led 54 - led
55 Required properties: 55 Required properties:
56 - compatible: "mediatek,mt6323 56 - compatible: "mediatek,mt6323-led"
57 see ../leds/leds-mt6323.txt 57 see ../leds/leds-mt6323.txt
58 58
59 - keys 59 - keys
60 Required properties: Should be one of 60 Required properties: Should be one of the following
61 - compatible: "mediatek,mt6323 61 - compatible: "mediatek,mt6323-keys"
62 - compatible: "mediatek,mt6331 62 - compatible: "mediatek,mt6331-keys"
63 - compatible: "mediatek,mt6397 63 - compatible: "mediatek,mt6397-keys"
64 see ../input/mtk-pmic-keys.txt 64 see ../input/mtk-pmic-keys.txt
65 65
66 - power-controller 66 - power-controller
67 Required properties: 67 Required properties:
68 - compatible: "mediatek,mt6323 68 - compatible: "mediatek,mt6323-pwrc"
69 For details, see ../power/reset/mt6323 69 For details, see ../power/reset/mt6323-poweroff.txt
70 70
71 - pin-controller 71 - pin-controller
72 Required properties: 72 Required properties:
73 - compatible: "mediatek,mt6397 73 - compatible: "mediatek,mt6397-pinctrl"
74 For details, see ../pinctrl/pinctrl-mt 74 For details, see ../pinctrl/pinctrl-mt65xx.txt
75 75
76 Example: 76 Example:
77 pwrap: pwrap@1000f000 { 77 pwrap: pwrap@1000f000 {
78 compatible = "mediatek,mt8135- 78 compatible = "mediatek,mt8135-pwrap";
79 79
80 ... 80 ...
81 81
82 pmic { 82 pmic {
83 compatible = "mediatek 83 compatible = "mediatek,mt6397";
84 84
85 codec: mt6397codec { 85 codec: mt6397codec {
86 compatible = " 86 compatible = "mediatek,mt6397-codec";
87 }; 87 };
88 88
89 regulators { 89 regulators {
90 compatible = " 90 compatible = "mediatek,mt6397-regulator";
91 91
92 mt6397_vpca15_ 92 mt6397_vpca15_reg: buck_vpca15 {
93 regula 93 regulator-compatible = "buck_vpca15";
94 regula 94 regulator-name = "vpca15";
95 regula 95 regulator-min-microvolt = <850000>;
96 regula 96 regulator-max-microvolt = <1400000>;
97 regula 97 regulator-ramp-delay = <12500>;
98 regula 98 regulator-always-on;
99 }; 99 };
100 100
101 mt6397_vgp4_re 101 mt6397_vgp4_reg: ldo_vgp4 {
102 regula 102 regulator-compatible = "ldo_vgp4";
103 regula 103 regulator-name = "vgp4";
104 regula 104 regulator-min-microvolt = <1200000>;
105 regula 105 regulator-max-microvolt = <3300000>;
106 regula 106 regulator-enable-ramp-delay = <218>;
107 }; 107 };
108 }; 108 };
109 }; 109 };
110 }; 110 };
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