All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Peter Chen (CIX)" <peter.chen@kernel.org>
To: Pawel Laszczak <pawell@cadence.com>
Cc: Roger Quadros <rogerq@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
Subject: Re: [PATCH] usb: cdnsp: Add support for device-only configuration
Date: Mon, 6 Apr 2026 09:31:50 +0800	[thread overview]
Message-ID: <adMNBsPYNg497Doa@nchen-desktop> (raw)
In-Reply-To: <PH7PR07MB9538FCAFEBF0072EA5B5B815DD5EA@PH7PR07MB9538.namprd07.prod.outlook.com>

On 26-04-03 10:33:52, Pawel Laszczak wrote:
> >>
> >> +	if (cdns->no_drd) {
> >> +		cdns->version  = CDNSP_CONTROLLER_V2;
> >> +		cdns->dr_mode = USB_DR_MODE_PERIPHERAL;
> >
> >With "no_drd", are configurations fixed, no other options?
> 
> Yes, no other option.

Is it possible for host-only configurations?

Peter

> 
> Pawel
> 
> >
> >> +		return 0;
> >> +	}
> >> +
> >>  	regs = devm_ioremap_resource(cdns->dev, &cdns->otg_res);
> >>  	if (IS_ERR(regs))
> >>  		return PTR_ERR(regs);
> >> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index
> >> 406abf629be2..a931fb201402 100644
> >> --- a/include/linux/pci_ids.h
> >> +++ b/include/linux/pci_ids.h
> >> @@ -2424,6 +2424,7 @@
> >>  #define PCI_DEVICE_ID_CDNS_USBSS	0x0100
> >>  #define PCI_DEVICE_ID_CDNS_USB		0x0120
> >>  #define PCI_DEVICE_ID_CDNS_USBSSP	0x0200
> >> +#define PCI_DEVICE_ID_CDNS_UDC_USBSSP	0x0400
> >>
> >>  #define PCI_VENDOR_ID_ARECA		0x17d3
> >>  #define PCI_DEVICE_ID_ARECA_1110	0x1110
> >>
> >> ---
> >> base-commit: 5196f2c98340297e1fdd36555285e991ceddf776
> >> change-id: 20260331-device_only-192d539430b5
> >>
> >> Best regards,
> >> --
> >> Pawel Laszczak <pawell@cadence.com>
> >>
> >>
> >
> >--
> >
> >Best regards,
> >Peter

-- 

Best regards,
Peter

  reply	other threads:[~2026-04-06  1:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-31  8:19 [PATCH] usb: cdnsp: Add support for device-only configuration Pawel Laszczak
2026-03-31  8:19 ` Pawel Laszczak via B4 Relay
2026-03-31 18:12 ` Bjorn Helgaas
2026-04-03  5:56 ` Peter Chen (CIX)
2026-04-03 10:33   ` Pawel Laszczak
2026-04-06  1:31     ` Peter Chen (CIX) [this message]
2026-04-07  5:21       ` Pawel Laszczak

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=adMNBsPYNg497Doa@nchen-desktop \
    --to=peter.chen@kernel.org \
    --cc=bhelgaas@google.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=pawell@cadence.com \
    --cc=rogerq@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.