On Wed, Mar 27, 2024 at 2:30 PM Niklas Söderlund
<niklas.soderlund+renesas@xxxxxxxxxxxx> wrote:
> The initial driver used a formula to approximate the temperature and
> register values reversed engineered from an out-of-tree BSP driver. This
> was needed as the datasheet at the time did not contain any information
> on how to do this. Later Gen3 (Rev 2.30) and Gen4 (all) now contains
> this information.
>
> Update the approximation formula to use the datasheet's information
> instead of the reversed-engineered one.
>
> On an idle M3-N without fused calibration values for PTAT and THCODE the
> old formula reports,
>
> zone0: 52000
> zone1: 53000
> zone2: 52500
>
> While the new formula under the same circumstances reports,
>
> zone0: 52500
> zone1: 54000
> zone2: 54000
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
> ---
> * Changes since v1
> - Fix spelling in commit message and code comments.
> - Improve calculation per Geert's suggestion of calculating directly in
> decidegrees. This allowed squashing patch 3/3/ in v1 into patch 2/2 in
> v2.
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
