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From: Andy Shevchenko <andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Chen,
	Alvin" <alvin.chen-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Jarkko Nikula
	<jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Andy Shevchenko
	<andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Subject: [PATCH v1 0/2] spi: pxa2xx: allow to set mostly any baudrate for Quark case
Date: Tue, 24 Mar 2015 17:43:20 +0200	[thread overview]
Message-ID: <1427211802-217454-1-git-send-email-andriy.shevchenko@linux.intel.com> (raw)

Currently driver relies on a table that is really unflexible and contains only
small subset of all possible variabts.

The patch series replaces the table by an approximation.

The code has been tested on Galileo Gen 1 board with loopback mode enabled.

Mark, it would be nice to have this in 4.0-rcX since it will be the first
kernel with Quark support. And I applied necessary patch to allow user to
select SPI driver for it, though it's up to you.

P.S. It was my bad I had to insist to use the approximation instead of some
unflexible tables in the first place.

Andy Shevchenko (2):
  spi: pxa2xx: shift clk_div in one place
  spi: pxa2xx: replace ugly table by approximation

 drivers/spi/spi-pxa2xx.c | 161 +++++++++++++++++++++++++++--------------------
 1 file changed, 94 insertions(+), 67 deletions(-)

-- 
2.1.4

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             reply	other threads:[~2015-03-24 15:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-24 15:43 Andy Shevchenko [this message]
     [not found] ` <1427211802-217454-1-git-send-email-andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-03-24 15:43   ` [PATCH v1 1/2] spi: pxa2xx: shift clk_div in one place Andy Shevchenko
     [not found]     ` <1427211802-217454-2-git-send-email-andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-03-24 17:00       ` Mark Brown
2015-03-24 15:43   ` [PATCH v1 2/2] spi: pxa2xx: replace ugly table by approximation Andy Shevchenko
     [not found]     ` <1427211802-217454-3-git-send-email-andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-03-24 16:59       ` Mark Brown
     [not found]         ` <20150324165954.GL17265-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-03-25 10:37           ` Andy Shevchenko
     [not found]             ` <1427279865.14897.405.camel-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-03-25 15:17               ` Mark Brown
     [not found]                 ` <20150325151701.GB3572-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-03-25 15:28                   ` Andy Shevchenko
2015-03-24 16:23   ` [PATCH v1 0/2] spi: pxa2xx: allow to set mostly any baudrate for Quark case Mark Brown
     [not found]     ` <20150324162323.GH17265-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-03-24 16:27       ` Andy Shevchenko
     [not found]         ` <1427214452.14897.401.camel-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-03-24 16:32           ` Mark Brown

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