diff options
| author | Peng Fan | 2017-04-18 20:41:52 +0800 |
|---|---|---|
| committer | Stefano Babic | 2017-05-18 11:23:31 +0200 |
| commit | 4fac41716840cb235a740d4d220f46a545a7632d (patch) | |
| tree | f24b29010a1cea9e485e0175deb1886a1329e24d /board/mini-box | |
| parent | 2096da452b32c7fc52e9fbd6c38e874ce635d664 (diff) | |
imx: thermal: update imx6 thermal driver according new equation
>From IC guys:
"
After a thorough accuracy study of the Temp sense circuit,
we found that with our current equation, an average part can
read 7 degrees lower than a known forced temperature.
We also found out that the standard variance was around 2C;
which is the tightest distribution that we could create.
We need to change the temp sense equation to center the average
part around the target temperature.
"
New equation:
Tmeas = (Nmeas - n1) / slope + t1 + offset
n1= fused room count
t1= 25
offset=3.580661
slope= 0.4148468 – 0.0015423*n1
According the new equation, update the thermal driver.
c1 and c2 changed to u64 type and update comments.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'board/mini-box')
0 files changed, 0 insertions, 0 deletions