From: Roger Quadros <rogerq@ti.com>
To: Chunfeng Yun <chunfeng.yun@mediatek.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mathias Nyman <mathias.nyman@intel.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-usb@vger.kernel.org>, <linux-mediatek@lists.infradead.org>
Subject: Re: [usb-next, v3 PATCH] usb: xhci: skip phys initialization of shared hcd
Date: Thu, 22 Mar 2018 14:29:39 +0200 [thread overview]
Message-ID: <e3560874-cf8b-a554-5226-bc640b0edcb1@ti.com> (raw)
In-Reply-To: <643701fef843f91931e3a68779afe053c63c96f6.1521707846.git.chunfeng.yun@mediatek.com>
On 22/03/18 14:12, Chunfeng Yun wrote:
> The phys has already been initialized when add primary hcd,
> including usb2 phys and usb3 phys also if exist, so needn't
> re-parse "phys" property again.
>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
> ---
> V3:
> add the following info about v1 & v2 suggested by Greg
> V2:
> fix it in hcd.c suggested by Roger
> V1:
> skip phys initialization when add shared HCD by setting
> xhci->shared_hcd->skip_phy_initialization=1;
> for both xhci-plat.c & xhci-mtk.c files.
> ---
> drivers/usb/core/hcd.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
> index 5a92d8f..777036a 100644
> --- a/drivers/usb/core/hcd.c
> +++ b/drivers/usb/core/hcd.c
> @@ -2757,7 +2757,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
> }
> }
>
> - if (!hcd->skip_phy_initialization) {
> + if (!hcd->skip_phy_initialization && usb_hcd_is_primary_hcd(hcd)) {
> hcd->phy_roothub = usb_phy_roothub_init(hcd->self.sysdev);
> if (IS_ERR(hcd->phy_roothub)) {
> retval = PTR_ERR(hcd->phy_roothub);
>
--
cheers,
-roger
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2018-03-22 12:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-22 8:39 [usb-next, v2 PATCH] usb: xhci: skip phys initialization of shared hcd Chunfeng Yun
2018-03-22 9:01 ` Greg Kroah-Hartman
2018-03-22 9:21 ` Chunfeng Yun
2018-03-22 12:00 ` Greg Kroah-Hartman
2018-03-22 12:29 ` Roger Quadros [this message]
2018-03-22 12:53 ` [usb-next, v3 " Greg Kroah-Hartman
2018-03-23 3:20 ` Chunfeng Yun
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=e3560874-cf8b-a554-5226-bc640b0edcb1@ti.com \
--to=rogerq@ti.com \
--cc=chunfeng.yun@mediatek.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-usb@vger.kernel.org \
--cc=martin.blumenstingl@googlemail.com \
--cc=mathias.nyman@intel.com \
--cc=matthias.bgg@gmail.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;
as well as URLs for NNTP newsgroup(s).