On 15.03.2023 11:39, Stephan Gerhold wrote: > The MSM8909 SoC has 5 thermal sensors in a TSENS v0.1 block. Like > MDM9607 it uses a non-standard default slope value of 3000 [1] and needs > per-sensor "correction factors" to workaround issues with the factory > calibration [2]. > > [1]: https://git.codelinaro.org/clo/la/kernel/msm-3.18/-/blob/LA.UM.7.7.c26-09100-8x09.0/arch/arm/boot/dts/qcom/msm8909.dtsi#L476 > [2]: https://git.codelinaro.org/clo/la/kernel/msm-3.18/-/commit/6df022c6d0c2c1b4a5a6c2124dba4d57910c0911 > > Signed-off-by: Stephan Gerhold <stephan.gerhold@xxxxxxxxxxxxxxx> > --- > Changes in v3: None > Changes in v2: > - Rewrite on top of per-sensor nvmem cell changes that landed in 6.3 > --- > drivers/thermal/qcom/tsens-v0_1.c | 32 ++++++++++++++++++++++++++++++- > drivers/thermal/qcom/tsens.c | 3 +++ > drivers/thermal/qcom/tsens.h | 2 +- > 3 files changed, 35 insertions(+), 2 deletions(-) > > diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c > index e69889dd524a..2fda1ff4f6a6 100644 > --- a/drivers/thermal/qcom/tsens-v0_1.c > +++ b/drivers/thermal/qcom/tsens-v0_1.c > @@ -207,6 +207,23 @@ static int calibrate_8974(struct tsens_priv *priv) > return 0; > } > > +static int __init init_8909(struct tsens_priv *priv) > +{ > + int i; > + > + for (i = 0; i < priv->num_sensors; ++i) > + priv->sensor[i].slope = 3000; > + I think assigning 0 here explicitly to priv->sensor[0].p12_calib_offset, while unnecessary, would make it a bit more obvious. Either way: Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> Konrad > + priv->sensor[1].p1_calib_offset = -10; > + priv->sensor[1].p2_calib_offset = -6; > + priv->sensor[3].p1_calib_offset = -9; > + priv->sensor[3].p2_calib_offset = -9; > + priv->sensor[4].p1_calib_offset = -8; > + priv->sensor[4].p2_calib_offset = -10; > + > + return init_common(priv); > +} > + > static int __init init_8939(struct tsens_priv *priv) { > priv->sensor[0].slope = 2911; > priv->sensor[1].slope = 2789; > @@ -243,7 +260,7 @@ static int __init init_9607(struct tsens_priv *priv) > return init_common(priv); > } > > -/* v0.1: 8916, 8939, 8974, 9607 */ > +/* v0.1: 8909, 8916, 8939, 8974, 9607 */ > > static struct tsens_features tsens_v0_1_feat = { > .ver_major = VER_0_1, > @@ -292,6 +309,19 @@ static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = { > [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0), > }; > > +static const struct tsens_ops ops_8909 = { > + .init = init_8909, > + .calibrate = tsens_calibrate_common, > + .get_temp = get_temp_common, > +}; > + > +struct tsens_plat_data data_8909 = { > + .num_sensors = 5, > + .ops = &ops_8909, > + .feat = &tsens_v0_1_feat, > + .fields = tsens_v0_1_regfields, > +}; > + > static const struct tsens_ops ops_8916 = { > .init = init_common, > .calibrate = calibrate_8916, > diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c > index 32d2907f76e5..a04179247b34 100644 > --- a/drivers/thermal/qcom/tsens.c > +++ b/drivers/thermal/qcom/tsens.c > @@ -1109,6 +1109,9 @@ static const struct of_device_id tsens_table[] = { > }, { > .compatible = "qcom,mdm9607-tsens", > .data = &data_9607, > + }, { > + .compatible = "qcom,msm8909-tsens", > + .data = &data_8909, > }, { > .compatible = "qcom,msm8916-tsens", > .data = &data_8916, > diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h > index 880be6be5c3f..c88287dede96 100644 > --- a/drivers/thermal/qcom/tsens.h > +++ b/drivers/thermal/qcom/tsens.h > @@ -639,7 +639,7 @@ int get_temp_common(const struct tsens_sensor *s, int *temp); > extern struct tsens_plat_data data_8960; > > /* TSENS v0.1 targets */ > -extern struct tsens_plat_data data_8916, data_8939, data_8974, data_9607; > +extern struct tsens_plat_data data_8909, data_8916, data_8939, data_8974, data_9607; > > /* TSENS v1 targets */ > extern struct tsens_plat_data data_tsens_v1, data_8976, data_8956;
