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| author | Stephan Gerhold <stephan.gerhold@kernkonzept.com> | 2023-06-07 13:47:46 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2023-06-26 13:03:13 +0300 |
| commit | b6f739da0070c36655118618a173a59fa14c7adc (patch) | |
| tree | dc531eb5893e5d0bc6964d99f31ed25955f4bd13 /drivers/thermal/qcom/tsens-v0_1.c | |
| parent | 6812d1dfbca99cd5032683354bf50e0002b2aa02 (diff) | |
| download | linux-b6f739da0070c36655118618a173a59fa14c7adc.tar.xz | |
thermal/drivers/qcom/tsens-v0_1: Add mdm9607 correction offsets
According to the msm-3.18 vendor kernel from Qualcomm, mdm9607 needs
"correction factors" to adjust for additional offsets observed after the
factory calibration values in the fuses [1, 2].
The fixed offsets should be applied unless there is a special
calibration mode value that indicates that no offsets are needed [3].
Note that the new calibration mode values are called differently in this
patch compared to the vendor kernel:
- TSENS_TWO_POINT_CALIB_N_WA -> ONE_PT_CALIB2_NO_OFFSET
- TSENS_TWO_POINT_CALIB_N_OFFSET_WA -> TWO_PT_CALIB_NO_OFFSET
This is because close inspection of the calibration function [3] reveals
that TSENS_TWO_POINT_CALIB_N_WA is actually a "one point" calibration
because the if statements skip all "point2" related code for it.
[1]: https://git.codelinaro.org/clo/la/kernel/msm-3.18/-/commit/d9d2db1b82bf3f72f5de0803d55e6849eb5b671e
[2]: https://git.codelinaro.org/clo/la/kernel/msm-3.18/-/commit/d75aef53a760e8ff7bac54049d00c8b2ee1b193e
[3]: https://git.codelinaro.org/clo/la/kernel/msm-3.18/-/blob/LE.UM.4.3.2.r1-04200-9x07/drivers/thermal/msm-tsens.c#L2987-3136
Fixes: a2149ab815fc ("thermal/drivers/qcom/tsens-v0_1: Add support for MDM9607")
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230508-msm8909-tsens-v5-3-5eb632235ba7@kernkonzept.com
Diffstat (limited to 'drivers/thermal/qcom/tsens-v0_1.c')
| -rw-r--r-- | drivers/thermal/qcom/tsens-v0_1.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c index 9802ae1d4fcf..4a55a8ea0043 100644 --- a/drivers/thermal/qcom/tsens-v0_1.c +++ b/drivers/thermal/qcom/tsens-v0_1.c @@ -241,6 +241,17 @@ static int __init init_9607(struct tsens_priv *priv) for (i = 0; i < priv->num_sensors; ++i) priv->sensor[i].slope = 3000; + priv->sensor[0].p1_calib_offset = 1; + priv->sensor[0].p2_calib_offset = 1; + priv->sensor[1].p1_calib_offset = -4; + priv->sensor[1].p2_calib_offset = -2; + priv->sensor[2].p1_calib_offset = 4; + priv->sensor[2].p2_calib_offset = 8; + priv->sensor[3].p1_calib_offset = -3; + priv->sensor[3].p2_calib_offset = -5; + priv->sensor[4].p1_calib_offset = -4; + priv->sensor[4].p2_calib_offset = -4; + return init_common(priv); } |