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From: Simon Horman <horms@verge.net.au>
To: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
	linux-renesas-soc@vger.kernel.org
Subject: Re: [RFC] mmc: tmio: fix tuning for stubborn cards
Date: Wed, 11 Oct 2017 09:36:48 +0200	[thread overview]
Message-ID: <20171011073648.GF9661@verge.net.au> (raw)
In-Reply-To: <20171011000814.21055-1-niklas.soderlund+renesas@ragnatech.se>

On Wed, Oct 11, 2017 at 02:08:14AM +0200, Niklas Söderlund wrote:
> The commit 43b0b361b0170030 ("mmc: tmio: always get number of taps")
> changed the behavior of the tuning. Before the commit the SCC was only
> enabled for the first tuning attempt (host->init_tuning(host)), if that
> failed the hardware where reset and tuning retried. In the second
> attempt the SCC where never configured and tuning would succeed for some
> stubborn cards. This patch restore this behavior which allows a troubled
> card I have to be used.

Hi Wolfram,

Is tuning retried if the card is changed, f.e. ejected and a different card
inserted?

  reply	other threads:[~2017-10-11  7:36 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-11  0:08 [RFC] mmc: tmio: fix tuning for stubborn cards Niklas Söderlund
2017-10-11  7:36 ` Simon Horman [this message]
2017-10-11  7:38   ` Simon Horman
2017-10-11  7:40   ` Wolfram Sang
2017-10-11  8:35   ` Niklas Söderlund
2017-10-12 10:27     ` Simon Horman

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