linux-kernel - Re: [PATCH] mfd: tc6393xb fail ohci suspend if full state restore is required

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Message-ID: <CALT56yPLnitsAqKJ=ryFE1uXwQqpbqwP3BmOf8L+fYG88kPnhw@mail.gmail.com>
Date:	Wed, 29 Oct 2014 22:38:52 +0400
From:	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
To:	kernel list <linux-kernel@...r.kernel.org>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>, stable@...r.kernel.org
Subject: Re: [PATCH] mfd: tc6393xb fail ohci suspend if full state restore is required

2014-10-24 20:19 GMT+03:00 Dmitry Eremin-Solenikov <dbaryshkov@...il.com>:
> Some boards with TC6393XB chip require full state restore during system
> resume thanks to chip's VCC being cut off during suspend (Sharp SL-6000
> tosa is one of them). Failing to do so would result in ohci Oops on
> resume due to internal memory contentes being changed. Fail ohci suspend
> on tc6393xb is full state restore is required.
>
> Recommended workaround is to unbind tmio-ohci driver before suspend and
> rebind it after resume.

ping

>
> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
> Cc: stable@...r.kernel.org
> ---
>  drivers/mfd/tc6393xb.c | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)



-- 
With best wishes
Dmitry
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