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From: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Gerhard Sittig <gsi-ynQEQJNshbs@public.gmane.org>
Cc: Michael Grzeschik
	<m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
	linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org
Subject: Re: [PATCH 2/3] spi: bitbang: add lsb first support
Date: Wed, 12 Mar 2014 21:35:44 +0000	[thread overview]
Message-ID: <20140312213544.GX28112@sirena.org.uk> (raw)
In-Reply-To: <20140312212941.GP3327-kDjWylLy9wD0K7fsECOQyeGNnDKD8DIp@public.gmane.org>

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On Wed, Mar 12, 2014 at 10:29:41PM +0100, Gerhard Sittig wrote:

> Would it be useful to not duplicate the transmission logic, but
> instead to optionally "bit swap" the TX and RX data before and
> after the common transmission logic?  Just a though whether this
> might help maintenance.  There might even be existing and proven
> code to bit swap integers?

I was wondering myself, but on the other hand that's an extra operation
and this is about as CPU intensive as one can get.

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  parent reply	other threads:[~2014-03-12 21:35 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-12 15:20 [PATCH 0/3] spi: bitbang fixes and passive serial driver Michael Grzeschik
     [not found] ` <1394637636-29042-1-git-send-email-m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-03-12 15:20   ` [PATCH 1/3] spi: bitbang: fix shift for getmosi Michael Grzeschik
     [not found]     ` <1394637636-29042-2-git-send-email-m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-03-12 21:23       ` Gerhard Sittig
2014-03-12 21:37         ` Mark Brown
2014-03-12 15:20   ` [PATCH 2/3] spi: bitbang: add lsb first support Michael Grzeschik
     [not found]     ` <1394637636-29042-3-git-send-email-m.grzeschik-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-03-12 21:29       ` Gerhard Sittig
     [not found]         ` <20140312212941.GP3327-kDjWylLy9wD0K7fsECOQyeGNnDKD8DIp@public.gmane.org>
2014-03-12 21:35           ` Mark Brown [this message]
     [not found]             ` <20140312213544.GX28112-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-03-13 18:11               ` Gerhard Sittig
     [not found]                 ` <20140313181107.GT3327-kDjWylLy9wD0K7fsECOQyeGNnDKD8DIp@public.gmane.org>
2014-03-13 18:41                   ` Mark Brown
2014-03-13 19:22                   ` Geert Uytterhoeven
2014-03-12 15:20   ` [PATCH 3/3] spi: psdev: add passive serial driver Michael Grzeschik
2014-03-12 15:42   ` [PATCH 0/3] spi: bitbang fixes and " Michael Grzeschik
2014-03-12 15:53 Michael Grzeschik
     [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

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