linux-kernel - [PATCH V3 2/4] thermal/drivers/qcom: Add new feat for soc without rpm

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: <20230922115116.2748804-3-srichara@win-platform-upstream01.qualcomm.com>
Date:   Fri, 22 Sep 2023 17:21:14 +0530
From:   Sricharan R <srichara@...-platform-upstream01.qualcomm.com>
To:     krzysztof.kozlowski@...aro.org, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org,
        srinivas.kandagatla@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        thara.gopinath@...il.com, rafael@...nel.org,
        daniel.lezcano@...aro.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, dmitry.baryshkov@...aro.org,
        quic_srichara@...cinc.com
Subject: [PATCH V3 2/4] thermal/drivers/qcom: Add new feat for soc without rpm

From: Sricharan Ramabadhran <quic_srichara@...cinc.com>

In IPQ5018, Tsens IP doesn't have RPM. Hence the early init to
enable tsens would not be done. So add a flag for that in feat
and skip enable checks. Without this, tsens probe fails.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Sricharan Ramabadhran <quic_srichara@...cinc.com>
---
 [v3] Added Dmitry's Reviewed tag

 drivers/thermal/qcom/tsens.c | 2 +-
 drivers/thermal/qcom/tsens.h | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 98c356acfe98..0a43ccf02ec4 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -974,7 +974,7 @@ int __init init_common(struct tsens_priv *priv)
 	ret = regmap_field_read(priv->rf[TSENS_EN], &enabled);
 	if (ret)
 		goto err_put_device;
-	if (!enabled) {
+	if (!enabled && !(priv->feat->ignore_enable)) {
 		dev_err(dev, "%s: device not enabled\n", __func__);
 		ret = -ENODEV;
 		goto err_put_device;
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index 2805de1c6827..e254cd2df904 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -505,6 +505,8 @@ enum regfield_ids {
  * @srot_split: does the IP neatly splits the register space into SROT and TM,
  *              with SROT only being available to secure boot firmware?
  * @has_watchdog: does this IP support watchdog functionality?
+ * @ignore_enable: does this IP reside in a soc that does not have rpm to
+ *                 do pre-init.
  * @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
@@ -516,6 +518,7 @@ struct tsens_features {
 	unsigned int adc:1;
 	unsigned int srot_split:1;
 	unsigned int has_watchdog:1;
+	unsigned int ignore_enable:1;
 	unsigned int max_sensors;
 	int trip_min_temp;
 	int trip_max_temp;
-- 
2.34.1