From: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: Andrea Paterniani <a.paterniani-03BXCEkGbFHYGGNLXY5/rw@public.gmane.org>
Cc: VISCOUNT - Larcher Alessandro
<a.larcher-cBrwBxTNXEs1GQ1Ptb7lUw@public.gmane.org>,
VISCOUNT - Zinato Carlo
<c.zinato-cBrwBxTNXEs1GQ1Ptb7lUw@public.gmane.org>,
VISCOUNT - Gabrielli Sandro
<s.gabrielli-cBrwBxTNXEs1GQ1Ptb7lUw@public.gmane.org>,
David Brownell <david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>,
spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
linux-arm-kernel-xIg/pKzrS19vn6HldHNs0ANdhmdF6hFW@public.gmane.org
Subject: Re: i.MX SPI driver
Date: Thu, 18 Jun 2009 09:01:24 +0200 [thread overview]
Message-ID: <20090618070124.GU31396@pengutronix.de> (raw)
In-Reply-To: <4A39E2BF.8060104-03BXCEkGbFHYGGNLXY5/rw@public.gmane.org>
Hi Andrea,
On Thu, Jun 18, 2009 at 08:46:23AM +0200, Andrea Paterniani wrote:
> Hi Sascha,
>
> Sorry for late replay!
> The current driver support DMA transfers.
> Surely for our design this feature is mandatory since we need to sustain
> heavy SPI traffic.
> I suggest to not remove the driver even if it only supports iMX1 device
> and not the entire family.
> Is it possible to have both current and new drivers?
I really wouldn't suggest that. The current driver does not work anymore
anyway since arch-imx is gone and the DMA API has changed on arch-mx1.
We have to do some work anyway, so I suggest to put the effort into DMA
support for the new driver. Since it's a bitbang driver it shouldn't be
hard.
Sascha
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next prev parent reply other threads:[~2009-06-18 7:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-17 10:40 i.MX SPI driver Sascha Hauer
[not found] ` <1245235220-23816-1-git-send-email-s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-06-17 10:40 ` [PATCH 1/2] remove " Sascha Hauer
[not found] ` <1245235220-23816-2-git-send-email-s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-06-17 10:40 ` [PATCH 2/2] SPI: Add SPI driver for most known i.MX SoCs Sascha Hauer
[not found] ` <1245235220-23816-3-git-send-email-s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-06-17 18:12 ` Guennadi Liakhovetski
[not found] ` <Pine.LNX.4.64.0906172010400.4218-0199iw4Nj15frtckUFj5Ag@public.gmane.org>
2009-06-18 7:52 ` Julien Boibessot
[not found] ` <4A39F255.2090301-GANU6spQydw@public.gmane.org>
2009-06-18 8:30 ` Guennadi Liakhovetski
[not found] ` <Pine.LNX.4.64.0906181028120.5779-0199iw4Nj15frtckUFj5Ag@public.gmane.org>
2009-06-21 12:59 ` Julien Boibessot
2009-06-21 13:53 ` Guennadi Liakhovetski
2009-07-24 10:07 ` Guennadi Liakhovetski
2009-09-10 23:33 ` i.MX SPI driver Daniel Mack
[not found] ` <20090910233303.GP9361-ahpEBR4enfnCULTFXS99ULNAH6kLmebB@public.gmane.org>
2009-09-11 19:28 ` Guennadi Liakhovetski
2009-06-18 6:46 ` Andrea Paterniani
[not found] ` <4A39E2BF.8060104-03BXCEkGbFHYGGNLXY5/rw@public.gmane.org>
2009-06-18 7:01 ` Sascha Hauer [this message]
[not found] ` <20090618070124.GU31396-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-06-18 7:39 ` Andrea Paterniani
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