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> --- Change 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 9d264dafcd7c..7865165863c6 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; + + 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, @@ -298,6 +315,19 @@ static const struct tsens_ops ops_v0_1 = { .get_temp = get_temp_common, }; +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; -- 2.30.2
