linux-kernel - [PATCH 1/3] thermal: qcom: lmh: Add support for sm8150

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Date:   Thu,  2 Dec 2021 17:38:00 -0500
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org,
        daniel.lezcano@...aro.org, rafael@...nel.org, rui.zhang@...el.com,
        robh+dt@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] thermal: qcom: lmh: Add support for sm8150

Add compatible to support LMh for sm8150 SoC.
sm8150 does not require explicit enabling for various LMh subsystems.
Move this piece of code under condition that it is executed only
for sdm845 SoC.

Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
---
 drivers/thermal/qcom/lmh.c | 61 ++++++++++++++++++++------------------
 1 file changed, 32 insertions(+), 29 deletions(-)

diff --git a/drivers/thermal/qcom/lmh.c b/drivers/thermal/qcom/lmh.c
index eafa7526eb8b..e390c3fd0272 100644
--- a/drivers/thermal/qcom/lmh.c
+++ b/drivers/thermal/qcom/lmh.c
@@ -138,35 +138,37 @@ static int lmh_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	if (!qcom_scm_lmh_dcvsh_available())
-		return -EINVAL;
-
-	ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_CRNT, LMH_ALGO_MODE_ENABLE, 1,
-				 LMH_NODE_DCVS, node_id, 0);
-	if (ret)
-		dev_err(dev, "Error %d enabling current subfunction\n", ret);
-
-	ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_REL, LMH_ALGO_MODE_ENABLE, 1,
-				 LMH_NODE_DCVS, node_id, 0);
-	if (ret)
-		dev_err(dev, "Error %d enabling reliability subfunction\n", ret);
-
-	ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_BCL, LMH_ALGO_MODE_ENABLE, 1,
-				 LMH_NODE_DCVS, node_id, 0);
-	if (ret)
-		dev_err(dev, "Error %d enabling BCL subfunction\n", ret);
-
-	ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_ALGO_MODE_ENABLE, 1,
-				 LMH_NODE_DCVS, node_id, 0);
-	if (ret) {
-		dev_err(dev, "Error %d enabling thermal subfunction\n", ret);
-		return ret;
-	}
-
-	ret = qcom_scm_lmh_profile_change(0x1);
-	if (ret) {
-		dev_err(dev, "Error %d changing profile\n", ret);
-		return ret;
+	if (of_device_is_compatible(np, "qcom,sdm845-lmh")) {
+		if (!qcom_scm_lmh_dcvsh_available())
+			return -EINVAL;
+
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_CRNT, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret)
+			dev_err(dev, "Error %d enabling current subfunction\n", ret);
+
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_REL, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret)
+			dev_err(dev, "Error %d enabling reliability subfunction\n", ret);
+
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_BCL, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret)
+			dev_err(dev, "Error %d enabling BCL subfunction\n", ret);
+
+		ret = qcom_scm_lmh_dcvsh(LMH_SUB_FN_THERMAL, LMH_ALGO_MODE_ENABLE, 1,
+					 LMH_NODE_DCVS, node_id, 0);
+		if (ret) {
+			dev_err(dev, "Error %d enabling thermal subfunction\n", ret);
+			return ret;
+		}
+
+		ret = qcom_scm_lmh_profile_change(0x1);
+		if (ret) {
+			dev_err(dev, "Error %d changing profile\n", ret);
+			return ret;
+		}
 	}
 
 	/* Set default thermal trips */
@@ -214,6 +216,7 @@ static int lmh_probe(struct platform_device *pdev)
 
 static const struct of_device_id lmh_table[] = {
 	{ .compatible = "qcom,sdm845-lmh", },
+	{ .compatible = "qcom,sm8150-lmh", },
 	{}
 };
 MODULE_DEVICE_TABLE(of, lmh_table);
-- 
2.25.1