Linux USB
 help / color / mirror / Atom feed
From: "Stanley Chang[昌育德]" <stanley_chang@realtek.com>
To: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Cc: "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"Stanley Chang[昌育德]" <stanley_chang@realtek.com>
Subject: RE: [PATCH v1 1/2] usb: dwc3: core: add support for remapping global register start address
Date: Mon, 10 Apr 2023 04:09:57 +0000	[thread overview]
Message-ID: <2e26b5005a4e4efa946cb04898779f08@realtek.com> (raw)
In-Reply-To: <20230408020840.344xuicuqb4abtow@synopsys.com>


> > diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index
> > 476b63618511..771b35449376 100644
> > --- a/drivers/usb/dwc3/core.c
> > +++ b/drivers/usb/dwc3/core.c
> > @@ -1785,6 +1785,23 @@ static int dwc3_probe(struct platform_device
> *pdev)
> >       dwc_res = *res;
> >       dwc_res.start += DWC3_GLOBALS_REGS_START;
> >
> > +     /* For some dwc3 controller, the dwc3 global register start address is
> > +      * not at DWC3_GLOBALS_REGS_START (0xc100).
> > +      */
> 
> Please use this comment style block:
>  /*
>   * a b c
>   * d e f
>   */
> 

I will follow this rule.

> > +     if (dev) {
> 
> Why do we need this if (dev) check? When would this not be the case?

I want the variable "fixed_dwc3_globals_regs_start" to be a local variable. 
So I added an if statement.
I can modify it to "if (dev->of_node)" which looks more make sense.

> 
> > +             int fixed_dwc3_globals_regs_start;
> 
> Need to initialize this in case you get bogus value when the property is not
> defined.

Thanks. I will add the initial value.

> 
> > +
> > +             device_property_read_u32(dev,
> > + "snps,fixed_dwc3_globals_regs_start",
> 
> Property name should be using "-" instead of "_". Also can we rename it to
> "snps,global-regs-starting-offset"
> 
> Thanks,
> Thinh
> 

I will rename as "snps,global-regs-starting-offset" in next version.

Thanks a lot of.
Stanley

  reply	other threads:[~2023-04-10  4:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-07  6:07 [PATCH v1 1/2] usb: dwc3: core: add support for remapping global register start address Stanley Chang
2023-04-07  6:07 ` [PATCH v1 2/2] dt-bindings: usb: snps,dwc3: Add 'snps,fixed_dwc3_globals_regs_start' quirk Stanley Chang
2023-04-08  2:51   ` Thinh Nguyen
2023-04-10  3:59     ` Stanley Chang[昌育德]
2023-04-08  2:08 ` [PATCH v1 1/2] usb: dwc3: core: add support for remapping global register start address Thinh Nguyen
2023-04-10  4:09   ` Stanley Chang[昌育德] [this message]
2023-04-11  1:27     ` Thinh Nguyen
2023-04-11  3:11       ` Stanley Chang[昌育德]

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=2e26b5005a4e4efa946cb04898779f08@realtek.com \
    --to=stanley_chang@realtek.com \
    --cc=Thinh.Nguyen@synopsys.com \
    --cc=linux-usb@vger.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox