linux-kernel - Re: [usb-next, v2 PATCH] usb: xhci: skip phys initialization of shared hcd

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Date:   Thu, 22 Mar 2018 17:21:26 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "Roger Quadros" <rogerq@...com>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-usb@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>
Subject: Re: [usb-next, v2 PATCH] usb: xhci: skip phys initialization of
 shared hcd

hi, 
On Thu, 2018-03-22 at 10:01 +0100, Greg Kroah-Hartman wrote:
> On Thu, Mar 22, 2018 at 04:39:20PM +0800, 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@...iatek.com>
> > ---
> >  drivers/usb/core/hcd.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> What changed from version 1?
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.

V2: fix it in hcd.c suggested by Roger
> 
> Always put that below the --- line like the kernel documentation asks
> you to do.
> 
> v3?
> 
> thanks,
> 
> greg k-h