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From: Haavard Skinnemoen <haavard.skinnemoen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
To: H Hartley Sweeten
	<hartleys-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org>
Cc: "spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org"
	<spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	"hskinnemoen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org"
	<hskinnemoen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>,
	arjun rath <rath.arjun-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: SPI-ADC
Date: Mon, 26 Apr 2010 09:26:46 +0200	[thread overview]
Message-ID: <20100426092646.11d8d71c@hskinnemoen-d830> (raw)
In-Reply-To: <0D753D10438DA54287A00B0270842697636D941949-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org>

H Hartley Sweeten <hartleys-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org> wrote:
> The max124[0|1] is still a spi device so using the atmel_spi driver is
> the correct route.  You just need to add the necessary support to the
> driver to handle the SPI_READY mode.

If there's only one master driver which supports this flag, it sounds
to me like it would be a _lot_ easier in the long run to instead teach
the device driver to deal with drivers which don't support this mode.

The atmel_spi hardware doesn't have any hardware support for this mode
as far as I know, so the implementation will be very CPU-intensive
either way.

But the best solution is probably to replace the ADC with one that
doesn't have a completely boneheaded interface.

Haavard

------------------------------------------------------------------------------

  parent reply	other threads:[~2010-04-26  7:26 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-22  6:20 SPI-ADC arjun rath
     [not found] ` <o2idc6d3181004212320neaf99b0az27938c369e1a5557-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-22 16:23   ` SPI-ADC H Hartley Sweeten
     [not found]     ` <y2tdc6d3181004222208uf6f4a9ecl7d0e2f084fd56a08@mail.gmail.com>
     [not found]       ` <y2tdc6d3181004222208uf6f4a9ecl7d0e2f084fd56a08-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-23 16:58         ` SPI-ADC H Hartley Sweeten
     [not found]           ` <0D753D10438DA54287A00B0270842697636D941949-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org>
2010-04-26  7:26             ` Haavard Skinnemoen [this message]
2010-04-26  7:40               ` SPI-ADC arjun rath
  -- strict thread matches above, loose matches on Subject: below --
2010-02-13  5:48 SPI-ADC arjun rath
     [not found] ` <dc6d3181002122148v6451ebffka164de288738485d-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-02-13  6:38   ` SPI-ADC Ben Gamari
2010-02-13 13:48 ` [spi-devel-general] SPI-ADC Linus Walleij
2010-02-13 16:51   ` Jonathan Cameron
2010-02-13 21:20     ` Linus Walleij
     [not found]       ` <63386a3d1002131320u5afbc35ak2bc3533aab3f1e54-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-02-15  4:29         ` SPI-ADC arjun rath
     [not found]           ` <dc6d3181002142029j13a9e57la45aa90a269404fa-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-02-15  8:49             ` SPI-ADC jassi brar
2010-02-15 17:33             ` SPI-ADC Ben Gamari

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