From: Miquel Raynal <miquel.raynal@bootlin.com> To: Gregory CLEMENT <gregory.clement@bootlin.com> Cc: Mark Rutland <mark.rutland@arm.com>, Andrew Lunn <andrew@lunn.ch>, Jason Cooper <jason@lakedaemon.net>, Mathias Nyman <mathias.nyman@intel.com>, devicetree@vger.kernel.org, Antoine Tenart <antoine.tenart@bootlin.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-usb@vger.kernel.org, Kishon Vijay Abraham I <kishon@ti.com>, Nadav Haklai <nadavh@marvell.com>, Rob Herring <robh+dt@kernel.org>, Alan Stern <stern@rowland.harvard.edu>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, Maxime Chevallier <maxime.chevallier@bootlin.com>, linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Subject: Re: [PATCH v2 03/10] usb: ehci-orion: avoid double PHY initialization Date: Mon, 21 Jan 2019 10:55:59 +0100 [thread overview] Message-ID: <20190121105559.1fd49dc8@xps13> (raw) In-Reply-To: <874la6lypx.fsf@FE-laptop> Hi Gregory, Gregory CLEMENT <gregory.clement@bootlin.com> wrote on Fri, 18 Jan 2019 17:25:30 +0100: > Hi Miquel, > > On ven., janv. 11 2019, Miquel Raynal <miquel.raynal@bootlin.com> wrote: > > > No need to initialize the PHY from the driver's probe. It is done by > > the core automatically and doing it twice would increment the > > Do you know exactly which core take care of it? The Orion's probe function calls usb_add_hcd() which handles PHY initialization (init, set mode, power on). > > When the phy support was added to this driver there was not such > feature. I made some research and found that recently (less than one > year ago) a series was added to initialize PHYs at HCD level[1]. I think > that our platform was forgotten in the conversion. AFAICS the conversion was applied to ehci-platform.c but not to other drivers so yes, this one was left aside but there are maybe others in the same situation. > > Could you check that we are now aligned with the requirement of this > series? There has been quite a few evolutions since this series but for what I understand, yes we are. Thanks, Miquèl _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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From: Miquel Raynal <miquel.raynal@bootlin.com> To: Gregory CLEMENT <gregory.clement@bootlin.com> Cc: Kishon Vijay Abraham I <kishon@ti.com>, Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Mathias Nyman <mathias.nyman@intel.com>, Alan Stern <stern@rowland.harvard.edu>, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, Antoine Tenart <antoine.tenart@bootlin.com>, Maxime Chevallier <maxime.chevallier@bootlin.com>, Nadav Haklai <nadavh@marvell.com> Subject: [v2,03/10] usb: ehci-orion: avoid double PHY initialization Date: Mon, 21 Jan 2019 10:55:59 +0100 [thread overview] Message-ID: <20190121105559.1fd49dc8@xps13> (raw) Hi Gregory, Gregory CLEMENT <gregory.clement@bootlin.com> wrote on Fri, 18 Jan 2019 17:25:30 +0100: > Hi Miquel, > > On ven., janv. 11 2019, Miquel Raynal <miquel.raynal@bootlin.com> wrote: > > > No need to initialize the PHY from the driver's probe. It is done by > > the core automatically and doing it twice would increment the > > Do you know exactly which core take care of it? The Orion's probe function calls usb_add_hcd() which handles PHY initialization (init, set mode, power on). > > When the phy support was added to this driver there was not such > feature. I made some research and found that recently (less than one > year ago) a series was added to initialize PHYs at HCD level[1]. I think > that our platform was forgotten in the conversion. AFAICS the conversion was applied to ehci-platform.c but not to other drivers so yes, this one was left aside but there are maybe others in the same situation. > > Could you check that we are now aligned with the requirement of this > series? There has been quite a few evolutions since this series but for what I understand, yes we are. Thanks, Miquèl
next prev parent reply other threads:[~2019-01-21 9:55 UTC|newest] Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-01-11 13:31 [PATCH v2 00/10] A3700 USB S2RAM support Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 01/10] usb: core: comply to PHY framework Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,01/10] " Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 02/10] usb: host: xhci: mvebu: add reset on resume quirk Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,02/10] " Miquel Raynal 2019-01-18 16:04 ` [PATCH v2 02/10] " Gregory CLEMENT 2019-01-18 16:04 ` Gregory CLEMENT 2019-01-18 16:04 ` [v2,02/10] " Gregory CLEMENT 2019-01-21 10:54 ` [PATCH v2 02/10] " Miquel Raynal 2019-01-21 10:54 ` [v2,02/10] " Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 03/10] usb: ehci-orion: avoid double PHY initialization Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,03/10] " Miquel Raynal 2019-01-11 18:03 ` [PATCH v2 03/10] " Sergei Shtylyov 2019-01-11 18:03 ` Sergei Shtylyov 2019-01-11 18:03 ` [v2,03/10] " Sergei Shtylyov 2019-01-21 10:00 ` [PATCH v2 03/10] " Miquel Raynal 2019-01-21 10:00 ` [v2,03/10] " Miquel Raynal 2019-01-18 16:25 ` [PATCH v2 03/10] " Gregory CLEMENT 2019-01-18 16:25 ` Gregory CLEMENT 2019-01-18 16:25 ` [v2,03/10] " Gregory CLEMENT 2019-01-21 9:55 ` Miquel Raynal [this message] 2019-01-21 9:55 ` Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 04/10] usb: ehci-orion: add S2RAM support Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,04/10] " Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 05/10] phy: add A3700 UTMI PHY driver Miquel Raynal 2019-01-11 13:31 ` [v2,05/10] " Miquel Raynal 2019-01-15 2:40 ` [PATCH v2 05/10] " Chunfeng Yun 2019-01-15 2:40 ` [v2,05/10] " Chunfeng Yun 2019-01-16 9:20 ` [PATCH v2 05/10] " Kishon Vijay Abraham I 2019-01-16 9:20 ` [v2,05/10] " Kishon Vijay Abraham I 2019-01-21 10:37 ` [PATCH v2 05/10] " Miquel Raynal 2019-01-21 10:37 ` [v2,05/10] " Miquel Raynal 2019-01-18 16:36 ` [PATCH v2 05/10] " Gregory CLEMENT 2019-01-18 16:36 ` [v2,05/10] " Gregory CLEMENT 2019-01-21 10:24 ` [PATCH v2 05/10] " Miquel Raynal 2019-01-21 10:24 ` [v2,05/10] " Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 06/10] dt-bindings: phy: mvebu-utmi: add UTMI PHY bindings Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,06/10] " Miquel Raynal 2019-01-15 21:44 ` [PATCH v2 06/10] " Rob Herring 2019-01-15 21:44 ` Rob Herring 2019-01-15 21:44 ` [v2,06/10] " Rob Herring 2019-01-16 13:20 ` [PATCH v2 06/10] " Miquel Raynal 2019-01-16 13:20 ` [v2,06/10] " Miquel Raynal 2019-01-16 14:49 ` [PATCH v2 06/10] " Rob Herring 2019-01-16 21:05 ` Rob Herring 2019-01-16 21:05 ` Rob Herring 2019-01-16 21:05 ` [v2,06/10] " Rob Herring 2019-01-11 13:31 ` [PATCH v2 07/10] MAINTAINERS: phy: fill Armada 3700 PHY drivers entry Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,07/10] " Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 08/10] ARM64: dts: marvell: armada-37xx: fix USB2 memory region Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,08/10] " Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 09/10] ARM64: dts: marvell: armada-37xx: declare USB2 UTMI PHYs Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,09/10] " Miquel Raynal 2019-01-11 13:31 ` [PATCH v2 10/10] ARM64: dts: marvell: armada-37xx: link USB hosts with their PHYs Miquel Raynal 2019-01-11 13:31 ` Miquel Raynal 2019-01-11 13:31 ` [v2,10/10] " Miquel Raynal
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