linux-kernel - [PATCH v12 3/3] usb: dwc3: qcom: Add helper function to request threaded IRQ

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Message-ID: <20231004165922.25642-4-quic_kriskura@quicinc.com>
Date:   Wed, 4 Oct 2023 22:29:22 +0530
From:   Krishna Kurapati <quic_kriskura@...cinc.com>
To:     Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bjorn Andersson <andersson@...nel.org>
CC:     <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_ppratap@...cinc.com>, <quic_wcheng@...cinc.com>,
        <quic_jackp@...cinc.com>,
        Krishna Kurapati <quic_kriskura@...cinc.com>,
        "Bjorn Andersson" <quic_bjorande@...cinc.com>
Subject: [PATCH v12 3/3] usb: dwc3: qcom: Add helper function to request threaded IRQ

Cleanup setup irq call by implementing a new prep_irq helper function
and using it to request threaded IRQ's.

Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@...cinc.com>
---
 drivers/usb/dwc3/dwc3-qcom.c | 59 ++++++++++++++++--------------------
 1 file changed, 26 insertions(+), 33 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 3de43df6bbe8..ef2006db7601 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -535,6 +535,24 @@ static int dwc3_qcom_get_irq(struct platform_device *pdev,
 	return ret;
 }
 
+static int dwc3_qcom_prep_irq(struct dwc3_qcom *qcom, char *irq_name,
+				char *disp_name, int irq)
+{
+	int ret;
+
+	/* Keep wakeup interrupts disabled until suspend */
+	irq_set_status_flags(irq, IRQ_NOAUTOEN);
+	ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
+					qcom_dwc3_resume_irq,
+					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+					disp_name, qcom);
+
+	if (ret)
+		dev_err(qcom->dev, "%s failed: %d\n", irq_name, ret);
+
+	return ret;
+}
+
 static int dwc3_qcom_setup_irq(struct platform_device *pdev)
 {
 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
@@ -545,61 +563,36 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev)
 	irq = dwc3_qcom_get_irq(pdev, "hs_phy_irq",
 				pdata ? pdata->hs_phy_irq_index : -1);
 	if (irq > 0) {
-		/* Keep wakeup interrupts disabled until suspend */
-		irq_set_status_flags(irq, IRQ_NOAUTOEN);
-		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
-					qcom_dwc3_resume_irq,
-					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
-					"qcom_dwc3 HS", qcom);
-		if (ret) {
-			dev_err(qcom->dev, "hs_phy_irq failed: %d\n", ret);
+		ret = dwc3_qcom_prep_irq(qcom, "hs_phy_irq", "qcom_dwc3 HS", irq);
+		if (ret)
 			return ret;
-		}
 		qcom->hs_phy_irq = irq;
 	}
 
 	irq = dwc3_qcom_get_irq(pdev, "dp_hs_phy_irq",
 				pdata ? pdata->dp_hs_phy_irq_index : -1);
 	if (irq > 0) {
-		irq_set_status_flags(irq, IRQ_NOAUTOEN);
-		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
-					qcom_dwc3_resume_irq,
-					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
-					"qcom_dwc3 DP_HS", qcom);
-		if (ret) {
-			dev_err(qcom->dev, "dp_hs_phy_irq failed: %d\n", ret);
+		ret = dwc3_qcom_prep_irq(qcom, "dp_hs_phy_irq", "qcom_dwc3 DP_HS", irq);
+		if (ret)
 			return ret;
-		}
 		qcom->dp_hs_phy_irq = irq;
 	}
 
 	irq = dwc3_qcom_get_irq(pdev, "dm_hs_phy_irq",
 				pdata ? pdata->dm_hs_phy_irq_index : -1);
 	if (irq > 0) {
-		irq_set_status_flags(irq, IRQ_NOAUTOEN);
-		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
-					qcom_dwc3_resume_irq,
-					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
-					"qcom_dwc3 DM_HS", qcom);
-		if (ret) {
-			dev_err(qcom->dev, "dm_hs_phy_irq failed: %d\n", ret);
+		ret = dwc3_qcom_prep_irq(qcom, "dm_hs_phy_irq", "qcom_dwc3 DM_HS", irq);
+		if (ret)
 			return ret;
-		}
 		qcom->dm_hs_phy_irq = irq;
 	}
 
 	irq = dwc3_qcom_get_irq(pdev, "ss_phy_irq",
 				pdata ? pdata->ss_phy_irq_index : -1);
 	if (irq > 0) {
-		irq_set_status_flags(irq, IRQ_NOAUTOEN);
-		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
-					qcom_dwc3_resume_irq,
-					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
-					"qcom_dwc3 SS", qcom);
-		if (ret) {
-			dev_err(qcom->dev, "ss_phy_irq failed: %d\n", ret);
+		ret = dwc3_qcom_prep_irq(qcom, "ss_phy_irq", "qcom_dwc3 SS", irq);
+		if (ret)
 			return ret;
-		}
 		qcom->ss_phy_irq = irq;
 	}
 
-- 
2.42.0