linux-kernel - [PATCH v1 10/12] i2c: qcom-geni: Use geni_se_resources

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Message-Id: <20251122050018.283669-11-praveen.talari@oss.qualcomm.com>
Date: Sat, 22 Nov 2025 10:30:16 +0530
From: Praveen Talari <praveen.talari@....qualcomm.com>
To: Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Mukesh Kumar Savaliya <mukesh.savaliya@....qualcomm.com>,
        Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Praveen Talari <praveen.talari@....qualcomm.com>,
        linux-arm-msm@...r.kernel.org, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: psodagud@...cinc.com, djaggi@...cinc.com, quic_msavaliy@...cinc.com,
        quic_vtanuku@...cinc.com, quic_arandive@...cinc.com,
        quic_shazhuss@...cinc.com
Subject: [PATCH v1 10/12] i2c: qcom-geni: Use geni_se_resources_state() API in runtime PM functions

To manage GENI serial engine resources during runtime power management,
drivers currently need to call functions for ICC, clock, and
SE resource operations in both suspend and resume paths, resulting in
code duplication across drivers.

The new geni_se_resources_state() helper API addresses this issue by
providing a streamlined method to enable or disable all resources
based on a boolean parameter, thereby eliminating redundancy across
drivers.

Signed-off-by: Praveen Talari <praveen.talari@....qualcomm.com>
---
 drivers/i2c/busses/i2c-qcom-geni.c | 28 +++++-----------------------
 1 file changed, 5 insertions(+), 23 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
index 790cbca2c22e..ea117a4667e0 100644
--- a/drivers/i2c/busses/i2c-qcom-geni.c
+++ b/drivers/i2c/busses/i2c-qcom-geni.c
@@ -1166,18 +1166,15 @@ static int __maybe_unused geni_i2c_runtime_suspend(struct device *dev)
 	struct geni_i2c_dev *gi2c = dev_get_drvdata(dev);
 
 	disable_irq(gi2c->irq);
-	ret = geni_se_resources_off(&gi2c->se);
+
+	ret = geni_se_resources_state(&gi2c->se, false);
 	if (ret) {
 		enable_irq(gi2c->irq);
 		return ret;
-
-	} else {
-		gi2c->suspended = 1;
 	}
 
-	clk_disable_unprepare(gi2c->core_clk);
-
-	return geni_icc_disable(&gi2c->se);
+	gi2c->suspended = 1;
+	return ret;
 }
 
 static int __maybe_unused geni_i2c_runtime_resume(struct device *dev)
@@ -1185,28 +1182,13 @@ static int __maybe_unused geni_i2c_runtime_resume(struct device *dev)
 	int ret;
 	struct geni_i2c_dev *gi2c = dev_get_drvdata(dev);
 
-	ret = geni_icc_enable(&gi2c->se);
+	ret = geni_se_resources_state(&gi2c->se, true);
 	if (ret)
 		return ret;
 
-	ret = clk_prepare_enable(gi2c->core_clk);
-	if (ret)
-		goto out_icc_disable;
-
-	ret = geni_se_resources_on(&gi2c->se);
-	if (ret)
-		goto out_clk_disable;
-
 	enable_irq(gi2c->irq);
 	gi2c->suspended = 0;
 
-	return 0;
-
-out_clk_disable:
-	clk_disable_unprepare(gi2c->core_clk);
-out_icc_disable:
-	geni_icc_disable(&gi2c->se);
-
 	return ret;
 }
 
-- 
2.34.1