15 Feb, 2019

1 commit

• d4584bbfc   gnss: add driver for mediatek receivers ... Browse Code »

  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
  [ johan: rename backup supply ]
  Signed-off-by: Johan Hovold

  Loys Ollivier

  2019-02-15 23:54:38 +0800