linux-kernel - [PATCH] usb: ohci-s3c2410: Use platform_get

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Message-Id: <20211215225358.1993774-1-robh@kernel.org>
Date:   Wed, 15 Dec 2021 16:53:57 -0600
From:   Rob Herring <robh@...nel.org>
To:     Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] usb: ohci-s3c2410: Use platform_get_irq() to get the interrupt

Accessing platform device resources directly has long been deprecated for
DT as IRQ resources may not be available at device creation time. Drivers
relying on the static IRQ resources is blocking removing the static setup
from the DT core code.

Signed-off-by: Rob Herring <robh@...nel.org>
---
 drivers/usb/host/ohci-s3c2410.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 1bec9b585e2d..12264c048601 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -356,7 +356,7 @@ static int ohci_hcd_s3c2410_probe(struct platform_device *dev)
 {
 	struct usb_hcd *hcd = NULL;
 	struct s3c2410_hcd_info *info = dev_get_platdata(&dev->dev);
-	int retval;
+	int retval, irq;
 
 	s3c2410_usb_set_power(info, 1, 1);
 	s3c2410_usb_set_power(info, 2, 1);
@@ -388,9 +388,15 @@ static int ohci_hcd_s3c2410_probe(struct platform_device *dev)
 		goto err_put;
 	}
 
+	irq = platform_get_irq(dev, 0);
+	if (irq < 0) {
+		retval = irq;
+		goto err_put;
+	}
+
 	s3c2410_start_hc(dev, hcd);
 
-	retval = usb_add_hcd(hcd, dev->resource[1].start, 0);
+	retval = usb_add_hcd(hcd, irq, 0);
 	if (retval != 0)
 		goto err_ioremap;
 
-- 
2.32.0