From: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Zach Brown <zach.brown-acOepvfBmUk@public.gmane.org>
Cc: ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
adrian.hunter-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [RFC 1/2] sdhci: Add device tree property sd-broken-highspeed
Date: Mon, 3 Oct 2016 12:37:08 -0500 [thread overview]
Message-ID: <20161003173708.GA15916@rob-hp-laptop> (raw)
In-Reply-To: <1474660869-15532-2-git-send-email-zach.brown-acOepvfBmUk@public.gmane.org>
On Fri, Sep 23, 2016 at 03:01:08PM -0500, Zach Brown wrote:
> Certain board configurations can make highspeed malfunction due to
> timing issues. In these cases a way is needed to force the controller
> and card into standard speed even if they otherwise appear to be capable
> of highspeed.
>
> The sd-broken-highspeed property will let the sdhci driver know that
> highspeed will not work.
>
> Signed-off-by: Zach Brown <zach.brown-acOepvfBmUk@public.gmane.org>
> ---
> Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
> 1 file changed, 2 insertions(+)
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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next prev parent reply other threads:[~2016-10-03 17:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-23 20:01 [RFC 0/2] Add device tree property and quirk for supporting sdhci Zach Brown
2016-09-23 20:01 ` [RFC 1/2] sdhci: Add device tree property sd-broken-highspeed Zach Brown
[not found] ` <1474660869-15532-2-git-send-email-zach.brown-acOepvfBmUk@public.gmane.org>
2016-10-03 17:37 ` Rob Herring [this message]
2016-10-05 18:33 ` Ulf Hansson
2016-10-05 20:03 ` Rob Herring
[not found] ` <CAL_JsqLjtn2-FaO_h9JWOsZqttQ35yV6KOnQz2Z-cMr=0GHJCg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-10-05 21:22 ` Julia Cartwright
2016-10-06 1:34 ` Shawn Lin
[not found] ` <5972c8f4-23b5-7dbb-b87c-7be7ec5b1a17-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-10-06 6:13 ` Adrian Hunter
2016-10-07 18:56 ` Zach Brown
2016-10-06 8:03 ` Ulf Hansson
2016-10-17 21:49 ` Zach Brown
2016-09-23 20:01 ` [RFC 2/2] sdhci: Prevent SD from doing highspeed timing when sd-broken-highspeed property is set Zach Brown
[not found] ` <1474660869-15532-3-git-send-email-zach.brown-acOepvfBmUk@public.gmane.org>
2016-10-06 6:39 ` Adrian Hunter
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