linux-kernel - [PATCH v7 3/5] drivers: thermal: tsens: allow configuring min and max trips

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220818220245.338396-3-robimarko@gmail.com>
Date:   Fri, 19 Aug 2022 00:02:43 +0200
From:   Robert Marko <robimarko@...il.com>
To:     amitk@...nel.org, thara.gopinath@...il.com, agross@...nel.org,
        bjorn.andersson@...aro.org, konrad.dybcio@...ainline.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 v7 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>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 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 816769af8813..6dc8feb5c142 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -573,8 +573,8 @@ static int tsens_set_trips(struct thermal_zone_device *tz, 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 1678c5e9e60b..8dc21ca0f2a3 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -499,6 +499,8 @@ 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;
@@ -508,6 +510,8 @@ 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;
 };
 
 /**
-- 
2.37.2