linux-kernel - [PATCH v3 3/5] drivers: thermal: tsens: allow configuring min and max trips

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Date:   Tue,  3 May 2022 22:05:28 +0200
From:   Robert Marko <robimarko@...il.com>
To:     amitk@...nel.org, thara.gopinath@...aro.org, agross@...nel.org,
        bjorn.andersson@...aro.org, rafael@...nel.org,
        daniel.lezcano@...aro.org, rui.zhang@...el.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-pm@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Robert Marko <robimarko@...il.com>
Subject: [PATCH v3 3/5] drivers: thermal: tsens: allow configuring min and max trips

IPQ8074 and IPQ6018 dont support negative trip temperatures and support
up to 204 degrees C as the max trip temperature.

So, instead of always setting the -40 as min and 120 degrees C as max
allow it to be configured as part of the features.

Signed-off-by: Robert Marko <robimarko@...il.com>
---
 drivers/thermal/qcom/tsens-8960.c | 2 ++
 drivers/thermal/qcom/tsens-v0_1.c | 2 ++
 drivers/thermal/qcom/tsens-v1.c   | 2 ++
 drivers/thermal/qcom/tsens-v2.c   | 2 ++
 drivers/thermal/qcom/tsens.c      | 4 ++--
 drivers/thermal/qcom/tsens.h      | 4 ++++
 6 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/qcom/tsens-8960.c b/drivers/thermal/qcom/tsens-8960.c
index ee584e5b07e5..4585904fb380 100644
--- a/drivers/thermal/qcom/tsens-8960.c
+++ b/drivers/thermal/qcom/tsens-8960.c
@@ -273,6 +273,8 @@ static struct tsens_features tsens_8960_feat = {
 	.adc		= 1,
 	.srot_split	= 0,
 	.max_sensors	= 11,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
 };
 
 struct tsens_plat_data data_8960 = {
diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c
index 6effb822bf3c..2c203ff374e6 100644
--- a/drivers/thermal/qcom/tsens-v0_1.c
+++ b/drivers/thermal/qcom/tsens-v0_1.c
@@ -543,6 +543,8 @@ static struct tsens_features tsens_v0_1_feat = {
 	.adc		= 1,
 	.srot_split	= 1,
 	.max_sensors	= 11,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
 };
 
 static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
diff --git a/drivers/thermal/qcom/tsens-v1.c b/drivers/thermal/qcom/tsens-v1.c
index a4f561a6e582..1d7f8a80bd13 100644
--- a/drivers/thermal/qcom/tsens-v1.c
+++ b/drivers/thermal/qcom/tsens-v1.c
@@ -306,6 +306,8 @@ static struct tsens_features tsens_v1_feat = {
 	.adc		= 1,
 	.srot_split	= 1,
 	.max_sensors	= 11,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
 };
 
 static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c
index 129cdb247381..9babc69bfd22 100644
--- a/drivers/thermal/qcom/tsens-v2.c
+++ b/drivers/thermal/qcom/tsens-v2.c
@@ -35,6 +35,8 @@ static struct tsens_features tsens_v2_feat = {
 	.adc		= 0,
 	.srot_split	= 1,
 	.max_sensors	= 16,
+	.trip_min_temp	= -40000,
+	.trip_max_temp	= 120000,
 };
 
 static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = {
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 69b6f7b97e9e..b7701d5efdfc 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -572,8 +572,8 @@ static int tsens_set_trips(void *_sensor, int low, int high)
 	dev_dbg(dev, "[%u] %s: proposed thresholds: (%d:%d)\n",
 		hw_id, __func__, low, high);
 
-	cl_high = clamp_val(high, -40000, 120000);
-	cl_low  = clamp_val(low, -40000, 120000);
+	cl_high = clamp_val(high, priv->feat->trip_min_temp, priv->feat->trip_max_temp);
+	cl_low  = clamp_val(low, priv->feat->trip_min_temp, priv->feat->trip_max_temp);
 
 	high_val = tsens_mC_to_hw(s, cl_high);
 	low_val  = tsens_mC_to_hw(s, cl_low);
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index 4614177944d6..747004476347 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -501,6 +501,8 @@ enum regfield_ids {
  *              with SROT only being available to secure boot firmware?
  * @has_watchdog: does this IP support watchdog functionality?
  * @max_sensors: maximum sensors supported by this version of the IP
+ * @trip_min_temp: minimum trip temperature supported by this version of the IP
+ * @trip_max_temp: maximum trip temperature supported by this version of the IP
  */
 struct tsens_features {
 	unsigned int ver_major;
@@ -510,6 +512,8 @@ struct tsens_features {
 	unsigned int srot_split:1;
 	unsigned int has_watchdog:1;
 	unsigned int max_sensors;
+	int trip_min_temp;
+	int trip_max_temp;
 };
 
 /**
-- 
2.35.1