linux-kernel - [PATCH v2 5/6] thermal: brcmstb_thermal: Restructure interrupt registration

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Message-Id: <20191211203143.2952-6-f.fainelli@gmail.com>
Date:   Wed, 11 Dec 2019 12:31:42 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-arm-kernel@...ts.infradead.org, daniel.lezcano@...aro.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Markus Mayer <mmayer@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM STB AVS TMON
        DRIVER), Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-pm@...r.kernel.org (open list:BROADCOM STB AVS TMON DRIVER),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 5/6] thermal: brcmstb_thermal: Restructure interrupt registration

If we are successful grabbing the interrupt resource, then register an
interrupt handler, this makes it easier to support the interrupt as
being optional, which is it for 7216.

Reviewed-by: Amit Kucheria <amit.kucheria@...aro.org>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/thermal/broadcom/brcmstb_thermal.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/thermal/broadcom/brcmstb_thermal.c b/drivers/thermal/broadcom/brcmstb_thermal.c
index 74d94f01b1b9..47b622f33900 100644
--- a/drivers/thermal/broadcom/brcmstb_thermal.c
+++ b/drivers/thermal/broadcom/brcmstb_thermal.c
@@ -348,16 +348,15 @@ static int brcmstb_thermal_probe(struct platform_device *pdev)
 	priv->thermal = thermal;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "could not get IRQ\n");
-		return irq;
-	}
-	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
-					brcmstb_tmon_irq_thread, IRQF_ONESHOT,
-					DRV_NAME, priv);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "could not request IRQ: %d\n", ret);
-		return ret;
+	if (irq >= 0) {
+		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+						brcmstb_tmon_irq_thread,
+						IRQF_ONESHOT,
+						DRV_NAME, priv);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "could not request IRQ: %d\n", ret);
+			return ret;
+		}
 	}
 
 	dev_info(&pdev->dev, "registered AVS TMON of-sensor driver\n");
-- 
2.17.1