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From: Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>
To: Gordon Bos <gordon-PMRpws9CsXpfxmBXdGbrbQ@public.gmane.org>
Cc: Gregory CLEMENT
	<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
	Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	Ian Campbell
	<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
	Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Jason Cooper <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>,
	Sebastian Hesselbarth
	<sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 1/1] arm: Fix unavailable MTD userland devices on Excito B3 boards
Date: Sat, 7 Feb 2015 19:40:24 +0100	[thread overview]
Message-ID: <20150207184024.GB22306@lunn.ch> (raw)
In-Reply-To: <54D657D5.3010709-PMRpws9CsXpfxmBXdGbrbQ@public.gmane.org>

On Sat, Feb 07, 2015 at 07:22:13PM +0100, Gordon Bos wrote:
> Hi Andrew,
> 
> I may be mistaken here, but this here references the driver that is
> to be used, or not?
> 
> |            compatible = "st,m25p16";


Nope, that is the device, not the driver.

The driver has a list of devices it is capable of driving. The kernel
uses that list to find the right driver.

> In the kernels I tried, m25p80 driver is simply not happy with
> m25p16 being defined in DT.

Please define "not happy". Please show me the kernel log of it being
not happy.

We need to compare and contrast my kernel log, where it is happy with
"st,m25p16" against your kernel log where it is unhappy. Then we might
have some clues to understand what is going on.

Thanks
	Andrew
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  parent reply	other threads:[~2015-02-07 18:40 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-06  8:45 [PATCH 1/1] arm: Fix unavailable MTD userland devices on Excito B3 boards Gordon Bos
     [not found] ` <1423212311-10793-1-git-send-email-gordon-PMRpws9CsXpfxmBXdGbrbQ@public.gmane.org>
2015-02-06  9:09   ` Gregory CLEMENT
2015-02-07 15:04     ` Gordon Bos
     [not found]       ` <54D6299B.70707-PMRpws9CsXpfxmBXdGbrbQ@public.gmane.org>
2015-02-07 16:09         ` Andrew Lunn
2015-02-07 17:15           ` Gordon Bos
     [not found]             ` <54D64820.7020002-PMRpws9CsXpfxmBXdGbrbQ@public.gmane.org>
2015-02-07 17:36               ` Andrew Lunn
2015-02-07 18:22                 ` Gordon Bos
     [not found]                   ` <54D657D5.3010709-PMRpws9CsXpfxmBXdGbrbQ@public.gmane.org>
2015-02-07 18:40                     ` Andrew Lunn [this message]
2015-02-07 19:59                       ` Gordon Bos
     [not found]                         ` <54D66EB2.2030006-PMRpws9CsXpfxmBXdGbrbQ@public.gmane.org>
2015-02-07 20:25                           ` Andrew Lunn
2015-02-07 16:37         ` Andrew Lunn

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