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Date: Thu, 2 May 2019 15:17:17 +0300 From: Mathias Nyman <mathias.nyman@...ux.intel.com> To: Raul Rangel <rrangel@...omium.org>, Andrey Smirnov <andrew.smirnov@...il.com> Cc: linux-usb@...r.kernel.org, Mathias Nyman <mathias.nyman@...el.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic() On 29.4.2019 23.05, Raul Rangel wrote: > On Thu, Feb 07, 2019 at 05:48:16PM -0800, Andrey Smirnov wrote: >> Xhci_handshake() implements the algorithm already captured by >> readl_poll_timeout_atomic(). Convert the former to use the latter to >> avoid repetition. >> >> Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com> > Tested-by: Raul E Rangel <rrangel@...omium.org> > Reviewed-by: Raul E Rangel <rrangel@...omium.org> > > This fixes a bug on the AMD Stoneyridge platform. usleep(1) sometimes > takes over 10ms. This means a 5 second timeout can easily take over 15 > seconds which will trigger the watchdog and reboot the system. > > Thanks for the patch. Adding to queue -Mathias
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