On Mon, Mar 6, 2017 at 9:03 PM, Niklas Söderlund
<niklas.soderlund+renesas@xxxxxxxxxxxx> wrote:
> The .thermal_init needs to be delayed a short amount of to allow for the
of ... (thx Sergei ;-)
> TEMP register to contain something useful. If it's not delayed theses
these
> warnings are common during boot:
>
> thermal thermal_zone0: failed to read out thermal zone (-5)
> thermal thermal_zone1: failed to read out thermal zone (-5)
> thermal thermal_zone2: failed to read out thermal zone (-5)
>
> The warnings are triggered by the first call to .get_temp while the TEMP
.get_temp()
> register contains 0 and rcar_gen3_thermal_get_temp() returns -EIO since
> a TEMP value of 0 will result in a temperature reading which is out of
> specifications.
>
> This should have been done in the initial commit which adds the driver
> as the same issue was found and corrected for r8a7795.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
