mb/google/snappy: add reset pin for Melfas touch controller
Melfas kernel TS driver (melfas_mip4.c) will look up "ce"
GPIO during driver probe in ACPI _DSD.
But FW does not report "ce-gpios" but "enable-gpios" in _DSD.
Kernel will obtain GPIO from _CRS by index "0" without ID.
Melfas driver does not have separate condition
for MIT-410 so driver will set TS IC power off in probe.
FW now may need to add back "reset" pin in order to hack
this condition to let Melfas driver get "useless" GPIO
so TS IC power (VTSP) will be not off during driver probe by itself.
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Tested-by: build bot (Jenkins) <firstname.lastname@example.org>
Reviewed-by: Aaron Durbin <email@example.com>
1 file changed