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From: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Michael Grzeschik <mgr-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: Michael Grzeschik
	<m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
	linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org
Subject: Re: [PATCH 3/3] spi: psdev: add passive serial driver
Date: Fri, 14 Mar 2014 10:22:23 +0000	[thread overview]
Message-ID: <20140314102223.GR366@sirena.org.uk> (raw)
In-Reply-To: <20140314101907.GF4234-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

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On Fri, Mar 14, 2014 at 11:19:07AM +0100, Michael Grzeschik wrote:

> Second, the driver has "per se" nothing to do with SPI, beside it needs
> a clock and data line to transfer an image to the FPGA. (One way,
> therefor: passive). It needs to use some SPI controller to do that. Even
> the SPI Bitbang driver. Because of this, it depends on the SPI
> framework.

Lots of drivers use SPI but they sit in the relevant frameworks rather
than in the SPI framework.

> It is actually not more than that. I took the spidev character device
> driver as reference implementation. Any Idea where to put this driver
> instead.

Like I say somewhere where it sits with other FPGA programming stuff (if
that's what it does) would be my first thought.

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WARNING: multiple messages have this Message-ID (diff)
From: broonie@kernel.org (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] spi: psdev: add passive serial driver
Date: Fri, 14 Mar 2014 10:22:23 +0000	[thread overview]
Message-ID: <20140314102223.GR366@sirena.org.uk> (raw)
In-Reply-To: <20140314101907.GF4234@pengutronix.de>

On Fri, Mar 14, 2014 at 11:19:07AM +0100, Michael Grzeschik wrote:

> Second, the driver has "per se" nothing to do with SPI, beside it needs
> a clock and data line to transfer an image to the FPGA. (One way,
> therefor: passive). It needs to use some SPI controller to do that. Even
> the SPI Bitbang driver. Because of this, it depends on the SPI
> framework.

Lots of drivers use SPI but they sit in the relevant frameworks rather
than in the SPI framework.

> It is actually not more than that. I took the spidev character device
> driver as reference implementation. Any Idea where to put this driver
> instead.

Like I say somewhere where it sits with other FPGA programming stuff (if
that's what it does) would be my first thought.
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  parent reply	other threads:[~2014-03-14 10:22 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-12 15:53 [PATCH 0/3] spi: bitbang fixes and passive serial driver Michael Grzeschik
2014-03-12 15:53 ` Michael Grzeschik
2014-03-12 15:53 ` [PATCH 1/3] spi: bitbang: fix shift for getmosi Michael Grzeschik
2014-03-12 15:53   ` Michael Grzeschik
2014-03-12 16:24   ` Mark Brown
2014-03-12 16:24     ` Mark Brown
     [not found]     ` <20140312162418.GU28112-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-03-12 21:45       ` Gerhard Sittig
2014-03-12 21:45         ` Gerhard Sittig
     [not found] ` <1394639617-26917-1-git-send-email-m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-03-12 15:53   ` [PATCH 2/3] spi: bitbang: add lsb first support Michael Grzeschik
2014-03-12 15:53     ` Michael Grzeschik
2014-03-12 15:53   ` [PATCH 3/3] spi: psdev: add passive serial driver Michael Grzeschik
2014-03-12 15:53     ` Michael Grzeschik
2014-03-13 17:14     ` Mark Rutland
2014-03-13 17:14       ` Mark Rutland
     [not found]     ` <1394639617-26917-4-git-send-email-m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-03-12 16:34       ` Mark Brown
2014-03-12 16:34         ` Mark Brown
     [not found]         ` <20140312163427.GV28112-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-03-14 10:19           ` Michael Grzeschik
2014-03-14 10:19             ` Michael Grzeschik
     [not found]             ` <20140314101907.GF4234-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-03-14 10:22               ` Mark Brown [this message]
2014-03-14 10:22                 ` Mark Brown
     [not found]                 ` <20140314102223.GR366-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-03-14 13:59                   ` Linus Walleij
2014-03-14 13:59                     ` Linus Walleij
     [not found]                     ` <CACRpkdZoO_hXw-p5ZHeUzMHULq_DEJNzpim0mcO5DBOgP=d60A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-03-14 18:11                       ` Michael Grzeschik
2014-03-14 18:11                         ` Michael Grzeschik
2014-03-12 17:54       ` Alexander Shiyan
2014-03-12 17:54         ` Alexander Shiyan
2014-03-14  8:06       ` Lothar Waßmann
2014-03-14  8:06         ` Lothar Waßmann
  -- strict thread matches above, loose matches on Subject: below --
2014-03-12 15:20 [PATCH 0/3] spi: bitbang fixes and " Michael Grzeschik
     [not found] ` <1394637636-29042-1-git-send-email-m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-03-12 15:20   ` [PATCH 3/3] spi: psdev: add " Michael Grzeschik

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