From: "Westerberg, Mika" <mika.westerberg@intel.com>
To: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: cerryview sd card problem
Date: Mon, 26 Sep 2016 12:52:11 +0300 [thread overview]
Message-ID: <20160926095211.GA1218@lahna.fi.intel.com> (raw)
In-Reply-To: <877f9zkpi7.fsf@intel.com>
On Mon, Sep 26, 2016 at 11:57:04AM +0300, Jani Nikula wrote:
> On Wed, 21 Sep 2016, Giacomo Comes <comes@naic.edu> wrote:
> > Hi,
> > I hope this is the appropriate place to ask what follows.
> > If not please point me to the right place.
> >
> > I have a couple of cerryview systems
> > (Acer Aspire R11 and Intel compute stick STK1AW32SC) on which
> > I run linux (openSUSE 42.1) with a 4.7 kernel.
> >
> > I have a problem though with the sd card reader:
> > in normal condition the kernel does not see the card reader.
> > The modules pinctrl-cherryview.ko and sdhci-pci.ko are both
> > loaded but the sd device is missing.
> >
> > Following the suggestion found here:
> > https://bugzilla.opensuse.org/show_bug.cgi?id=954532#c24
> > I "fixed" the problem by adding the module pinctrl-cherryview
> > in the initrd.
> >
> > I was wondering if the necessity to put pinctrl-cherryview in
> > the initrd is due to a bug in the kernel driver or it is a distro
> > issue.
>
> Hi Giacomo, intel-gfx is about Intel *graphics*. We are mostly clueless
> about SD cards here. ;)
>
> Mika, Andy, could you point Giacomo to the right place please?
If the SD-card card detection is implemented as a GPIO, the GPIO/pinctrl
driver needs to be there before the SD-card driver is able to detect a
card being inserted.
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next prev parent reply other threads:[~2016-09-26 9:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-21 20:43 cerryview sd card problem Giacomo Comes
2016-09-26 8:57 ` Jani Nikula
2016-09-26 9:52 ` Westerberg, Mika [this message]
2016-09-28 21:50 ` Giacomo Comes
2016-09-29 6:30 ` Westerberg, Mika
2016-09-29 6:46 ` Adrian Hunter
2016-09-29 15:37 ` Giacomo Comes
2016-09-30 8:30 ` Adrian Hunter
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