This adds the grf property to handle the tsadc power sequence on
rk3399 SoCs.
The rk3399 tsadc can work with this patch on now.
while true; do grep "" /sys/class/thermal/thermal_zone[0-1]/temp;sleep .5; done
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41666
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555
Change-Id: I0155826bddf0017ea4985920268b333a20278bbe
Signed-off-by: Caesar Wang <wxt@rock-chips.com>