Linux USB
 help / color / mirror / Atom feed
From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
To: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Cc: Thinh Nguyen <Thinh.Nguyen@synopsys.com>,
	"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
	"michal.simek@amd.com" <michal.simek@amd.com>,
	"p.zabel@pengutronix.de" <p.zabel@pengutronix.de>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"git@amd.com" <git@amd.com>
Subject: Re: [PATCH 2/3] usb: dwc3: xilinx: use reset_control_reset() in versal init
Date: Thu, 14 May 2026 01:34:11 +0000	[thread overview]
Message-ID: <agUltzvDFgJtPa6j@vbox> (raw)
In-Reply-To: <20260511160814.2904882-3-radhey.shyam.pandey@amd.com>

On Mon, May 11, 2026, Radhey Shyam Pandey wrote:
> Replace separate reset_control_assert() and reset_control_deassert() calls
> with reset_control_reset(), which pulses the reset in one step. Report
> failures with dev_err_probe() and a single message. No functional change.
> 

The behavior of reset_control_reset() is a little different. I wouldn't
call this "No functional change". However, I assumed this was tested.
Please provide a proper reason for this change in the change log.

> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
> ---
>  drivers/usb/dwc3/dwc3-xilinx.c | 16 ++++------------
>  1 file changed, 4 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c
> index a3c7dc258c7d..94458b3da1a0 100644
> --- a/drivers/usb/dwc3/dwc3-xilinx.c
> +++ b/drivers/usb/dwc3/dwc3-xilinx.c
> @@ -98,18 +98,10 @@ static int dwc3_xlnx_init_versal(struct dwc3_xlnx *priv_data)
>  
>  	dwc3_xlnx_mask_phy_rst(priv_data, false);
>  
> -	/* Assert and De-assert reset */
> -	ret = reset_control_assert(crst);
> -	if (ret < 0) {
> -		dev_err_probe(dev, ret, "failed to assert Reset\n");
> -		return ret;
> -	}
> -
> -	ret = reset_control_deassert(crst);
> -	if (ret < 0) {
> -		dev_err_probe(dev, ret, "failed to De-assert Reset\n");
> -		return ret;
> -	}
> +	/* assert and deassert reset */
> +	ret = reset_control_reset(crst);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "failed to assert and deassert reset\n");
>  
>  	dwc3_xlnx_mask_phy_rst(priv_data, true);
>  	dwc3_xlnx_set_coherency(priv_data, XLNX_USB2_TRAFFIC_ROUTE_CONFIG);
> -- 
> 2.44.4
> 

  reply	other threads:[~2026-05-14  1:34 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-11 16:08 [PATCH 0/3] usb: dwc3: xilinx: minor fixes for dwc3-xilinx glue driver Radhey Shyam Pandey
2026-05-11 16:08 ` [PATCH 1/3] usb: dwc3: xilinx: fix missing space before closing comment delimiter Radhey Shyam Pandey
2026-05-14  1:23   ` Thinh Nguyen
2026-05-11 16:08 ` [PATCH 2/3] usb: dwc3: xilinx: use reset_control_reset() in versal init Radhey Shyam Pandey
2026-05-14  1:34   ` Thinh Nguyen [this message]
2026-05-11 16:08 ` [PATCH 3/3] usb: dwc3: xilinx: fix error handling in zynqmp init error paths Radhey Shyam Pandey
2026-05-14  1:43   ` Thinh Nguyen
2026-05-14 12:52     ` Pandey, Radhey Shyam

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=agUltzvDFgJtPa6j@vbox \
    --to=thinh.nguyen@synopsys.com \
    --cc=git@amd.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=michal.simek@amd.com \
    --cc=p.zabel@pengutronix.de \
    --cc=radhey.shyam.pandey@amd.com \
    /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