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From: peter.chen@freescale.com (Peter Chen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/3] USB: add generic onboard USB HUB driver
Date: Tue, 15 Dec 2015 16:33:26 +0800	[thread overview]
Message-ID: <20151215083259.GA13809@shlinux2> (raw)
In-Reply-To: <3023844.AYbAYqvHUZ@wuerfel>

On Mon, Dec 14, 2015 at 10:35:19AM +0100, Arnd Bergmann wrote:
> On Monday 14 December 2015 15:26:11 Peter Chen wrote:
> > Hi all,
> > 
> > There is a known issue that the USB code can't handle USB HUB's
> > external pins well, in that case, it may cause some onboard
> > USB HUBs can't work since their PHY's clock or reset pin needs to
> > operate.
> > 
> > The user reported this issue at below:
> > http://www.spinics.net/lists/linux-usb/msg131502.html
> > 
> > In this patch set, I add a generic onboard USB HUB driver to
> > handle this problem, the external signals will be configured
> > before usb controller's initialization, it much likes we did
> > it at board code before.
> > 
> > The user needs to add this generic hub node at dts to support it.
> > 
> > @The udoo users, help to test please.
> 
> I still think need to do this properly by representing the hub
> device as a USB device, using power sequencing code like MMC does.
> 
> 	Arnd

I will try to have a patch set for general onboard USB device.

-- 

Best Regards,
Peter Chen

  reply	other threads:[~2015-12-15  8:33 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-14  7:26 [PATCH v2 0/3] USB: add generic onboard USB HUB driver Peter Chen
2015-12-14  7:26 ` [PATCH v2 1/3] usb: misc: generic_onboard_hub: " Peter Chen
2015-12-14  7:26 ` [PATCH v2 2/3] doc: dt-binding: generic onboard USB HUB Peter Chen
2015-12-14  7:26 ` [PATCH v2 3/3] ARM: dts: imx6qdl-udoo.dtsi: fix onboard USB HUB property Peter Chen
2015-12-14  9:35 ` [PATCH v2 0/3] USB: add generic onboard USB HUB driver Arnd Bergmann
2015-12-15  8:33   ` Peter Chen [this message]
2015-12-16 22:59   ` Rob Herring
2015-12-16 23:13     ` Arnd Bergmann
2015-12-17  2:31       ` Peter Chen
2015-12-17 13:49         ` Rob Herring
2015-12-18  7:38           ` Peter Chen
2015-12-17 16:13     ` Alan Stern
2015-12-18  7:42       ` Peter Chen
2015-12-18 15:38         ` Alan Stern
2015-12-21  8:33           ` Peter Chen
2015-12-21 19:40             ` Alan Stern
2015-12-22  3:32               ` Peter Chen
2015-12-22 15:48                 ` Alan Stern
2016-01-05 14:36             ` Rob Herring
2016-01-05 15:59               ` Alan Stern
2016-01-06  3:20               ` Peter Chen
2016-01-07 14:18                 ` Rob Herring
2016-01-08  3:33                   ` Peter Chen
2016-02-24  9:22                   ` Peter Chen
2015-12-14 11:26 ` Fabio Estevam
2015-12-15  6:28   ` Peter Chen
2015-12-15 11:32     ` Fabio Estevam
2015-12-16  4:11       ` Peter Chen
2015-12-16 10:11         ` Fabio Estevam
2015-12-16 20:05           ` Maciej S. Szmigiero
2015-12-17  6:57             ` Peter Chen
2015-12-18 23:48               ` Maciej S. Szmigiero
2015-12-21  8:44                 ` Peter Chen

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