1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
Texas Instruments, TPS80031/TPS80032 PMIC
This device uses two drivers:
- drivers/power/pmic/tps80031.c (for parent device)
- drivers/power/regulator/tps80031_regulator.c (for child regulators)
This chapter describes the binding info for the PMIC driver and regulators.
Required properties for PMIC:
- compatible: "ti,tps80031" or "ti,tps80032"
- reg: 0x48
With those two properties, the pmic device can be used for read/write only.
To bind each regulator, the optional regulators subnode should exists.
Optional subnode:
- name: regulators (subnode list of each device's regulator)
Regulators subnode contains set on supported regulators.
Required properties:
- regulator-name: used for regulator uclass platform data '.name',
List of supported regulator nodes names for tps80031/tps80032:
- smps1, smps2, smps3, smps4, smps5
- ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldoln, ldousb
SMPS5 in Linux 3.1.10 is referred as vio, but datasheet clearly names it SMPS5.
Optional:
- regulator-min-microvolt: minimum allowed Voltage to set
- regulator-max-microvolt: minimum allowed Voltage to set
- regulator-always-on: regulator should be never disabled
- regulator-boot-on: regulator should be enabled by the bootloader
Example:
tps80032@48 {
compatible = "ti,tps80032";
reg = <0x48>;
regulators {
smps1 {
regulator-name = "vdd_cpu";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1250000>;
regulator-always-on;
regulator-boot-on;
};
...
smps5 {
regulator-name = "vdd_1v8_gen";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
ldo1 {
regulator-name = "avdd_dsi_csi";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-boot-on;
};
...
ldousb {
regulator-name = "avdd_usb";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
};
};
|
