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d4584bbfcf
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>
57 lines
1.2 KiB
Plaintext
57 lines
1.2 KiB
Plaintext
#
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# GNSS receiver configuration
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#
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menuconfig GNSS
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tristate "GNSS receiver support"
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---help---
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Say Y here if you have a GNSS receiver (e.g. a GPS receiver).
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To compile this driver as a module, choose M here: the module will
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be called gnss.
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if GNSS
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config GNSS_SERIAL
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tristate
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config GNSS_MTK_SERIAL
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tristate "Mediatek GNSS receiver support"
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depends on SERIAL_DEV_BUS
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select GNSS_SERIAL
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help
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Say Y here if you have a Mediatek-based GNSS receiver which uses a
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serial interface.
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To compile this driver as a module, choose M here: the module will
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be called gnss-mtk.
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If unsure, say N.
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config GNSS_SIRF_SERIAL
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tristate "SiRFstar GNSS receiver support"
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depends on SERIAL_DEV_BUS
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---help---
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Say Y here if you have a SiRFstar-based GNSS receiver which uses a
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serial interface.
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To compile this driver as a module, choose M here: the module will
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be called gnss-sirf.
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If unsure, say N.
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config GNSS_UBX_SERIAL
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tristate "u-blox GNSS receiver support"
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depends on SERIAL_DEV_BUS
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select GNSS_SERIAL
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---help---
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Say Y here if you have a u-blox GNSS receiver which uses a serial
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interface.
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To compile this driver as a module, choose M here: the module will
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be called gnss-ubx.
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If unsure, say N.
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endif # GNSS
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