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Wed, 11 Jun 2025 07:08:43 -0700 (PDT) Date: Wed, 11 Jun 2025 10:08:41 -0400 From: Alan Stern To: Mihai Sain Cc: gregkh@linuxfoundation.org, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, claudiu.beznea@tuxon.dev, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] usb: ohci-at91: Use dynamic device name for OHCI HCD creation Message-ID: References: <20250611075414.4239-2-mihai.sain@microchip.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250611075414.4239-2-mihai.sain@microchip.com> On Wed, Jun 11, 2025 at 10:54:15AM +0300, Mihai Sain wrote: > 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@sam9x75eb ~]$ 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@sam9x75eb ~]$ cat /proc/iomem | grep usb > 00600000-006fffff : 600000.usb-ohci usb-ohci@600000 > 00700000-007fffff : 700000.usb-ehci usb-ehci@700000 Are these two outputs supposed to make some sort of point? It would be better to have a before-and-after comparison, so we can see what the effect of the patch is. Alan Stern