From: Felipe Balbi <felipe.balbi@linux.intel.com> To: Jisheng Zhang <jszhang@marvell.com> Cc: mathias.nyman@intel.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, yendapally.reddy@broadcom.com, Maxime Ripard <maxime.ripard@free-electrons.com>, Mathias Nyman <mathias.nyman@linux.intel.com> Subject: Re: [RESEND PATCH v2 2/7] usb: xhci: plat: attach the usb_phy to the correct hcd Date: Wed, 27 Apr 2016 09:19:16 +0300 [thread overview] Message-ID: <87h9eno9p7.fsf@intel.com> (raw) In-Reply-To: <20160427135946.3b983890@xhacker> [-- Attachment #1: Type: text/plain, Size: 1515 bytes --] Hi, Jisheng Zhang <jszhang@marvell.com> writes: > Dear Felipe, > > On Wed, 27 Apr 2016 08:29:34 +0300 Felipe Balbi wrote: > >> Hi, >> >> (Cc authors and maintainer, otherwise you're patch might be forgotten ;-) > > Thanks a lot for the kind remind. I just run get_maintainer.pl to get the > To and Cc lists. It seems Mathias's email changed, MAINTAINERS need to updated. > >> >> Jisheng Zhang <jszhang@marvell.com> writes: >> > Commit 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") adds the >> > usb_phy for usb3, but it attached the usb_phy to incorrect hcd. The >> >> where did you see that's the USB3 phy ? I can't see it. > > Commit 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") says: > > "The Marvell Armada 385 AP needs a dumb phy in order to enable the USB3 VBUS." That could be a typo. VBUS is defined by the original USB specification and there is only a single VBUS ping for all speeds ;-) > So I think it means USB3 phy. we should ask patch author :-) > Here I have two questions: Per my understanding, usb_phy is deprecated, all > users and new code are encouraged to use generic phy. I think there must > be some special reason commit 7b8ef22ea547 still made use of usb_phy, could > I know what's the reason? I don't know, maybe author knows > And could the "USB3 VBUS" support be achieved through regulator framework? depends on how the PHY is integrated but, IMO, it should be doable and is probably preferrable. -- balbi [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 818 bytes --]
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From: felipe.balbi@linux.intel.com (Felipe Balbi) To: linux-arm-kernel@lists.infradead.org Subject: [RESEND PATCH v2 2/7] usb: xhci: plat: attach the usb_phy to the correct hcd Date: Wed, 27 Apr 2016 09:19:16 +0300 [thread overview] Message-ID: <87h9eno9p7.fsf@intel.com> (raw) In-Reply-To: <20160427135946.3b983890@xhacker> Hi, Jisheng Zhang <jszhang@marvell.com> writes: > Dear Felipe, > > On Wed, 27 Apr 2016 08:29:34 +0300 Felipe Balbi wrote: > >> Hi, >> >> (Cc authors and maintainer, otherwise you're patch might be forgotten ;-) > > Thanks a lot for the kind remind. I just run get_maintainer.pl to get the > To and Cc lists. It seems Mathias's email changed, MAINTAINERS need to updated. > >> >> Jisheng Zhang <jszhang@marvell.com> writes: >> > Commit 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") adds the >> > usb_phy for usb3, but it attached the usb_phy to incorrect hcd. The >> >> where did you see that's the USB3 phy ? I can't see it. > > Commit 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") says: > > "The Marvell Armada 385 AP needs a dumb phy in order to enable the USB3 VBUS." That could be a typo. VBUS is defined by the original USB specification and there is only a single VBUS ping for all speeds ;-) > So I think it means USB3 phy. we should ask patch author :-) > Here I have two questions: Per my understanding, usb_phy is deprecated, all > users and new code are encouraged to use generic phy. I think there must > be some special reason commit 7b8ef22ea547 still made use of usb_phy, could > I know what's the reason? I don't know, maybe author knows > And could the "USB3 VBUS" support be achieved through regulator framework? depends on how the PHY is integrated but, IMO, it should be doable and is probably preferrable. -- balbi -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 818 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20160427/4ccee2e6/attachment.sig>
next prev parent reply other threads:[~2016-04-27 6:21 UTC|newest] Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-04-26 12:57 [RESEND PATCH v2 0/7] usb: xhci-plat: support generic PHY and vbus regulator Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-26 12:57 ` [RESEND PATCH v2 1/7] usb: xhci: plat: Fix suspend/resume when the optional clk exists Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-27 5:25 ` Felipe Balbi 2016-04-27 5:25 ` Felipe Balbi 2016-04-27 5:46 ` Jisheng Zhang 2016-04-27 5:46 ` Jisheng Zhang 2016-04-26 12:57 ` [RESEND PATCH v2 2/7] usb: xhci: plat: attach the usb_phy to the correct hcd Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-27 5:29 ` Felipe Balbi 2016-04-27 5:29 ` Felipe Balbi 2016-04-27 5:59 ` Jisheng Zhang 2016-04-27 5:59 ` Jisheng Zhang 2016-04-27 6:19 ` Felipe Balbi [this message] 2016-04-27 6:19 ` Felipe Balbi 2016-04-26 12:57 ` [RESEND PATCH v2 3/7] usb: xhci: plat: Fix suspend/resume when the optional usb_phy exists Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-27 5:30 ` Felipe Balbi 2016-04-27 5:30 ` Felipe Balbi 2016-04-26 12:57 ` [RESEND PATCH v2 4/7] usb: xhci: plat: sort the headers in alphabetic order Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-26 12:57 ` [RESEND PATCH v2 5/7] usb: xhci: plat: Remove checks for optional clock in error/remove path Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-27 5:33 ` Felipe Balbi 2016-04-27 5:33 ` Felipe Balbi 2016-04-27 6:33 ` Jisheng Zhang 2016-04-27 6:33 ` Jisheng Zhang 2016-04-27 7:19 ` Felipe Balbi 2016-04-27 7:19 ` Felipe Balbi 2016-04-26 12:57 ` [RESEND PATCH v2 6/7] usb: xhci: plat: add generic PHY support Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-27 5:35 ` Felipe Balbi 2016-04-27 5:35 ` Felipe Balbi 2016-04-27 6:46 ` Jisheng Zhang 2016-04-27 6:46 ` Jisheng Zhang 2016-04-27 7:21 ` Felipe Balbi 2016-04-27 7:21 ` Felipe Balbi 2016-04-27 7:57 ` Heikki Krogerus 2016-04-27 7:57 ` Heikki Krogerus 2016-04-27 9:34 ` Felipe Balbi 2016-04-27 9:34 ` Felipe Balbi 2016-04-26 12:57 ` [RESEND PATCH v2 7/7] usb: xhci: plat: add vbus regulator control Jisheng Zhang 2016-04-26 12:57 ` Jisheng Zhang 2016-04-27 5:37 ` Felipe Balbi 2016-04-27 5:37 ` Felipe Balbi 2016-04-27 9:57 ` Mark Brown 2016-04-27 9:57 ` Mark Brown 2016-04-27 10:25 ` Jisheng Zhang 2016-04-27 10:25 ` Jisheng Zhang 2016-04-27 13:24 ` Mark Brown 2016-04-27 13:24 ` Mark Brown 2016-04-27 10:25 ` Felipe Balbi 2016-04-27 10:25 ` Felipe Balbi 2016-04-27 10:35 ` Mark Brown 2016-04-27 10:35 ` Mark Brown 2016-04-27 10:38 ` Felipe Balbi 2016-04-27 10:38 ` Felipe Balbi
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