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

[Sricharan R <srichara@win-platform-upstream01.qualcomm.com>]

From: Sricharan Ramabadhran <quic_srichara@quicinc.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@linaro.org>
Signed-off-by: Sricharan Ramabadhran <quic_srichara@quicinc.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