From: Felipe Balbi <balbi@kernel.org>
To: Roger Quadros <rogerq@ti.com>, mathias.nyman@linux.intel.com
Cc: nsekhar@ti.com, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, Roger Quadros <rogerq@ti.com>
Subject: Re: [PATCH 0/5] usb: dwc3: xhci: Add quirk for defective Port Enable/disable
Date: Fri, 18 Mar 2016 15:07:44 +0200 [thread overview]
Message-ID: <87egb8exy7.fsf@intel.com> (raw)
In-Reply-To: <1458304437-1210-1-git-send-email-rogerq@ti.com>
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Mathias,
Roger Quadros <rogerq@ti.com> writes:
> Some devices from Texas Instruments suffer from
> a silicon bug where XHCI Port Enabled/Disabled bit
> should not be used to silence an erroneous device.
>
> The bug is so that if port is disabled with PED
> bit, an IRQ for device removal (or attachment)
> will never fire.
>
> Just for the sake of completeness, the actual
> problem lies with SNPS DWC3 USB IP and this affects
> all known versions up to 3.00a
>
> We add a BROKEN_PE quirk in xhci.h to deal with this issue
> and add a corresponding bit in xhci platform_data.
>
> I've only updated Felipe's e-mail id in the patches
> and re-based them to v4.5 + balbi/next.
>
> --
> cheers,
> -roger
>
> Felipe Balbi (5):
> usb: xhci: add quirk flag for broken PED bits
> usb: dwc3: core: define macros for newest revisions
> usb: host: xhci: add broken pe quirk flag to pdata
> usb: host: xhci-plat: enable BROKEN_PE quirk if platform requested
> usb: dwc3: host: pass BROKEN_PE flag for known broken revisions
this series has changes on both dwc3 and xhci. Let me know how you wanna
handle these.
--
balbi
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prev parent reply other threads:[~2016-03-18 13:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-18 12:33 [PATCH 0/5] usb: dwc3: xhci: Add quirk for defective Port Enable/disable Roger Quadros
2016-03-18 12:33 ` [PATCH 1/5] usb: xhci: add quirk flag for broken PED bits Roger Quadros
2016-03-18 12:33 ` [PATCH 2/5] usb: dwc3: core: define macros for newest revisions Roger Quadros
2016-03-18 12:33 ` [PATCH 3/5] usb: host: xhci: add broken pe quirk flag to pdata Roger Quadros
2016-03-18 12:33 ` [PATCH 4/5] usb: host: xhci-plat: enable BROKEN_PE quirk if platform requested Roger Quadros
2016-03-18 12:33 ` [PATCH 5/5] usb: dwc3: host: pass BROKEN_PE flag for known broken revisions Roger Quadros
2016-03-18 13:07 ` Felipe Balbi [this message]
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