1 Palmas Pincontrol bindings
2
3 The pins of Palmas device can be set on differ
4 the configuration for Pull UP/DOWN, open drain
5
6 Required properties:
7 - compatible: It must be one of following:
8 - "ti,palmas-pinctrl" for Palma series of th
9 - "ti,tps65913-pinctrl" for Palma series dev
10 - "ti,tps80036-pinctrl" for Palma series dev
11
12 Please refer to pinctrl-bindings.txt in this d
13 common pinctrl bindings used by client devices
14 phrase "pin configuration node".
15
16 Palmas's pin configuration nodes act as a cont
17 subnodes. Each of these subnodes represents so
18 list of pins. This configuration can include t
19 those pin(s), and various pin configuration pa
20 open drain.
21
22 The name of each subnode is not important; all
23 and processed purely based on their content.
24
25 Each subnode only affects those parameters tha
26 other words, a subnode that lists a mux functi
27 parameters implies no information about any pi
28 Similarly, a pin subnode that describes a pull
29 information about e.g. the mux function.
30
31 Optional properties:
32 - ti,palmas-enable-dvfs1: Enable DVFS1. Config
33 Selection primary or secondary functio
34 I2C2_SDA_SDO pin/pad for DVFS1 interfa
35 - ti,palmas-enable-dvfs2: Enable DVFS2. Config
36 Selection primary or secondary functio
37 and SYSEN2 pin/pad for DVFS2 interface
38 - ti,palmas-override-powerhold: This is applic
39 GPIO7 is configured in POWERHOLD mode
40 over DEV_ON bit and keeps the PMIC sup
41 bit is turned off. This property enabl
42 POWERHOLD value to GPIO7 so as to turn
43 scenarios. So for GPIO7 if ti,palmas-o
44 then the GPIO_7 field should never be
45 It should be set to POWERHOLD by defau
46 power off scenarios the driver will ov
47
48 This binding uses the following generic proper
49 pinctrl-bindings.txt:
50
51 Required: pins
52 Options: function, bias-disable, bias-pull-up,
53 drive-open-drain.
54
55 Note that many of these properties are only va
56 See the Palmas device datasheet for complete d
57 support which functionality.
58
59 Valid values for pin names are:
60 gpio0, gpio1, gpio2, gpio3, gpio4, gpi
61 gpio10, gpio11, gpio12, gpio13, gpio14
62 nreswarm, pwrdown, gpadc_start, reset_
63 int.
64
65 Valid value of function names are:
66 gpio, led, pwm, regen, sysen, clk32kga
67 vac, vacok, powergood, usb_psel, msecu
68 simrsto, simrsti, low_vbat, wireless_c
69 reset_in, nsleep, enable.
70
71 There are 4 special functions: opt0, opt1, opt
72 functions is selected then directly pins regis
73 or 3 respectively if it is valid for that pins
74
75 Example:
76 palmas: tps65913 {
77 ....
78 pinctrl {
79 compatible = "ti,tps65
80 ti,palmas-enable-dvfs1
81 pinctrl-names = "defau
82 pinctrl-0 = <&palmas_p
83
84 palmas_pins_state: pin
85 gpio0 {
86 pins =
87 functi
88 bias-p
89 };
90
91 vac {
92 pins =
93 functi
94 bias-p
95 };
96
97 gpio5 {
98 pins =
99 functi
100 drive-
101 };
102 };
103 };
104 ....
105 };
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