linux-stable/drivers/gnss/Kconfig
Loys Ollivier d4584bbfcf gnss: add driver for mediatek receivers
Add driver for serial-connected Mediatek-based GNSS receivers.

These devices typically boot transmitting vendor specific NMEA output
sequences. The serial port bit rate is read from the device tree
"current-speed".

Note that the driver uses the generic GNSS serial implementation and
therefore essentially only manages power abstracted into three power
states: ACTIVE, STANDBY, and OFF.

For mediatek receivers with a main supply and no enable-gpios, this simply
means that the main supply is disabled in STANDBY and OFF (the optional
backup supply is kept enabled while the driver is bound).

Note that the timepulse-support is left unimplemented.

Signed-off-by: Loys Ollivier <lollivier@baylibre.com>
[ johan: rename backup supply ]
Signed-off-by: Johan Hovold <johan@kernel.org>
2019-02-15 16:54:38 +01:00

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#
# GNSS receiver configuration
#
menuconfig GNSS
tristate "GNSS receiver support"
---help---
Say Y here if you have a GNSS receiver (e.g. a GPS receiver).
To compile this driver as a module, choose M here: the module will
be called gnss.
if GNSS
config GNSS_SERIAL
tristate
config GNSS_MTK_SERIAL
tristate "Mediatek GNSS receiver support"
depends on SERIAL_DEV_BUS
select GNSS_SERIAL
help
Say Y here if you have a Mediatek-based GNSS receiver which uses a
serial interface.
To compile this driver as a module, choose M here: the module will
be called gnss-mtk.
If unsure, say N.
config GNSS_SIRF_SERIAL
tristate "SiRFstar GNSS receiver support"
depends on SERIAL_DEV_BUS
---help---
Say Y here if you have a SiRFstar-based GNSS receiver which uses a
serial interface.
To compile this driver as a module, choose M here: the module will
be called gnss-sirf.
If unsure, say N.
config GNSS_UBX_SERIAL
tristate "u-blox GNSS receiver support"
depends on SERIAL_DEV_BUS
select GNSS_SERIAL
---help---
Say Y here if you have a u-blox GNSS receiver which uses a serial
interface.
To compile this driver as a module, choose M here: the module will
be called gnss-ubx.
If unsure, say N.
endif # GNSS