linux-kernel - [PATCH] usb: ohci-at91: Use dynamic device name for OHCI HCD creation

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Message-ID: <20250611075414.4239-2-mihai.sain@microchip.com>
Date: Wed, 11 Jun 2025 10:54:15 +0300
From: Mihai Sain <mihai.sain@...rochip.com>
To: <stern@...land.harvard.edu>, <gregkh@...uxfoundation.org>,
	<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
	<claudiu.beznea@...on.dev>, <linux-usb@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
CC: Mihai Sain <mihai.sain@...rochip.com>
Subject: [PATCH] usb: ohci-at91: Use dynamic device name for OHCI HCD creation

Use the dynamic device name instead of the hardcoded string "at91"
when creating the OHCI host controller driver.
This ensures that the device name is more flexible
and correctly reflects the actual device in the system.
This will be in sync with ehci at91 driver.

[root@...9x75eb ~]$ dmesg | grep usb
[    1.464487] usb usb1: Manufacturer: Linux 6.16.0-rc1 ehci_hcd
[    1.470210] usb usb1: SerialNumber: 700000.usb-ehci
[    1.595683] usb usb2: Manufacturer: Linux 6.16.0-rc1 ohci_hcd
[    1.601406] usb usb2: SerialNumber: 600000.usb-ohci

[root@...9x75eb ~]$ cat /proc/iomem | grep usb
00600000-006fffff : 600000.usb-ohci usb-ohci@...000
00700000-007fffff : 700000.usb-ehci usb-ehci@...000

Signed-off-by: Mihai Sain <mihai.sain@...rochip.com>
---
 drivers/usb/host/ohci-at91.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 5df793dcb25d..12fdb18934cf 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -193,7 +193,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
 	if (irq < 0)
 		return irq;
 
-	hcd = usb_create_hcd(driver, dev, "at91");
+	hcd = usb_create_hcd(driver, dev, dev_name(dev));
 	if (!hcd)
 		return -ENOMEM;
 	ohci_at91 = hcd_to_ohci_at91_priv(hcd);

base-commit: aef17cb3d3c43854002956f24c24ec8e1a0e3546
-- 
2.49.0