[PATCH v5 4/7] thermal: qcom: tsens: Add support for MSM8952 tsens

From: Muzaffer Kadir via B4 Relay

Date: Sun Oct 11 2026 - 12:54:00 EST


From: Muzaffer Kadir <muzafferkadir@xxxxxxxxxxxxxx>

Add support for tsens v1 block that exists on MSM8952 with
11 tsens sensors. Sensor Offsets are taken from downstream.

Link: https://android.googlesource.com/kernel/msm.git/+/refs/tags/android-wear-7.0.0_r0.3/drivers/thermal/msm-tsens.c#1621
Signed-off-by: Muzaffer Kadir <muzafferkadir@xxxxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
---
drivers/thermal/qcom/tsens-v1.c | 41 +++++++++++++++++++++++++++++++++++++++++
drivers/thermal/qcom/tsens.c | 3 +++
drivers/thermal/qcom/tsens.h | 2 +-
3 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/tsens-v1.c b/drivers/thermal/qcom/tsens-v1.c
index faa5d00788ca..7bda8e6087c4 100644
--- a/drivers/thermal/qcom/tsens-v1.c
+++ b/drivers/thermal/qcom/tsens-v1.c
@@ -145,6 +145,34 @@ static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
};

+static int __init init_8952(struct tsens_priv *priv)
+{
+ priv->sensor[0].p1_calib_offset = 2;
+ priv->sensor[0].p2_calib_offset = -1;
+ priv->sensor[1].p1_calib_offset = -4;
+ priv->sensor[1].p2_calib_offset = -4;
+ priv->sensor[2].p1_calib_offset = 4;
+ priv->sensor[2].p2_calib_offset = 5;
+ priv->sensor[3].p1_calib_offset = 1;
+ priv->sensor[3].p2_calib_offset = 1;
+ priv->sensor[4].p1_calib_offset = 2;
+ priv->sensor[4].p2_calib_offset = 3;
+ priv->sensor[5].p1_calib_offset = -1;
+ priv->sensor[5].p2_calib_offset = -1;
+ priv->sensor[6].p1_calib_offset = 0;
+ priv->sensor[6].p2_calib_offset = -1;
+ priv->sensor[7].p1_calib_offset = 3;
+ priv->sensor[7].p2_calib_offset = 4;
+ priv->sensor[8].p1_calib_offset = 2;
+ priv->sensor[8].p2_calib_offset = 4;
+ priv->sensor[9].p1_calib_offset = 0;
+ priv->sensor[9].p2_calib_offset = 0;
+ priv->sensor[10].p1_calib_offset = -3;
+ priv->sensor[10].p2_calib_offset = -2;
+
+ return init_common(priv);
+}
+
static int __init init_8956(struct tsens_priv *priv) {
priv->sensor[0].slope = 3313;
priv->sensor[1].slope = 3275;
@@ -223,6 +251,19 @@ struct tsens_plat_data data_8937 = {
.fields = tsens_v1_regfields,
};

+static const struct tsens_ops ops_8952 = {
+ .init = init_8952,
+ .calibrate = tsens_calibrate_common,
+ .get_temp = get_temp_tsens_valid,
+};
+
+struct tsens_plat_data data_8952 = {
+ .num_sensors = 11,
+ .ops = &ops_8952,
+ .feat = &tsens_v1_feat,
+ .fields = tsens_v1_regfields,
+};
+
static const struct tsens_ops ops_8956 = {
.init = init_8956,
.calibrate = tsens_calibrate_common,
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index b5ec70201e2f..4d7013fc79d6 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -1191,6 +1191,9 @@ static const struct of_device_id tsens_table[] = {
}, {
.compatible = "qcom,msm8939-tsens",
.data = &data_8939,
+ }, {
+ .compatible = "qcom,msm8952-tsens",
+ .data = &data_8952,
}, {
.compatible = "qcom,msm8956-tsens",
.data = &data_8956,
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index e8376accdff3..a35b15312961 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -669,7 +669,7 @@ extern struct tsens_plat_data data_8960;
extern struct tsens_plat_data data_8226, data_8909, data_8916, data_8939, data_8974, data_9607;

/* TSENS v1 targets */
-extern struct tsens_plat_data data_tsens_v1, data_8937, data_8976, data_8956;
+extern struct tsens_plat_data data_tsens_v1, data_8937, data_8952, data_8976, data_8956;

/* TSENS v1 with no RPM targets */
extern const struct tsens_plat_data data_ipq5018;

--
2.55.0