[PATCH RFC 17/20] thermal: qcom: tsens: Add support for MSM8952 tsens

[Muzaffer Kadir via B4 Relay <devnull+muzafferkadir.mainlining.org@kernel.org>]

From: Muzaffer Kadir <muzafferkadir@mainlining.org>

Add MSM8952 support for tsens.

Downstream does a lot of advanced things with calculations.
But seems like using tsens-v1 directly works too.

Downstream reference: [1]

[1] 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@mainlining.org>
---
 drivers/thermal/qcom/tsens-v1.c | 44 +++++++++++++++++++++++++++++++++++++++++
 drivers/thermal/qcom/tsens.c    |  3 +++
 drivers/thermal/qcom/tsens.h    |  2 +-
 3 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/tsens-v1.c b/drivers/thermal/qcom/tsens-v1.c
index faa5d00788ca..f4201748ea29 100644
--- a/drivers/thermal/qcom/tsens-v1.c
+++ b/drivers/thermal/qcom/tsens-v1.c
@@ -145,6 +145,37 @@ 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)
+{
+	for (int i = 0; i < priv->num_sensors; ++i)
+		priv->sensor[i].slope = 3200;
+
+	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 +254,19 @@ 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;

-- 
2.54.0