drivers: power: report battery voltage in AOSP compatible format
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / pps / Kconfig
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1#
2# PPS support configuration
3#
4
5menu "PPS support"
6
7config PPS
8 tristate "PPS support"
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9 ---help---
10 PPS (Pulse Per Second) is a special pulse provided by some GPS
11 antennae. Userland can use it to get a high-precision time
12 reference.
13
14 Some antennae's PPS signals are connected with the CD (Carrier
15 Detect) pin of the serial line they use to communicate with the
16 host. In this case use the SERIAL_LINE client support.
17
18 Some antennae's PPS signals are connected with some special host
19 inputs so you have to enable the corresponding client support.
20
21 To compile this driver as a module, choose M here: the module
22 will be called pps_core.ko.
1a0f3999 23if PPS
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24
25config PPS_DEBUG
26 bool "PPS debugging messages"
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27 help
28 Say Y here if you want the PPS support to produce a bunch of debug
29 messages to the system log. Select this if you are having a
30 problem with PPS support and want to see more of what is going on.
31
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32config NTP_PPS
33 bool "PPS kernel consumer support"
1a0f3999 34 depends on !NO_HZ
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35 help
36 This option adds support for direct in-kernel time
25985edc 37 synchronization using an external PPS signal.
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38
39 It doesn't work on tickless systems at the moment.
40
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41endif
42
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43source drivers/pps/clients/Kconfig
44
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45source drivers/pps/generators/Kconfig
46
eae9d2ba 47endmenu