linux-kernel - Re: [PATCH v2] spi: add OpenCores tiny SPI driver

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Date:	Fri, 21 Jan 2011 13:27:29 +0100
From:	Jonas Bonn <jonas@...thpole.se>
To:	Thomas Chou <thomas@...ron.com.tw>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	nios2-dev@...c.et.ntust.edu.tw,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Mike Frysinger <vapier@...too.org>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	spi-devel-general@...ts.sourceforge.net
Subject: Re: [PATCH v2] spi: add OpenCores tiny SPI driver

Hi,

> 
> >> +#ifdef CONFIG_OF
> >> +static struct of_device_id oc_tiny_spi_match[] = {
> >> +	{
> >> +		.compatible = "opencores,oc_tiny_spi",
> >
> > If this is a soft core, then there should be a version number of some
> > sort on the compatible value.  Also, please use dash '-' instead of
> > underscore '_' in compatible values.  Also, for all of these new
> > bindings, they need to be documented.  Please add documentation to
> > Documentation/powerpc/dts-bindings (yes, I know, this is not
> > for powerpc, but that is the established directory.  I'll move it to a
> > better location soon).
> >

It would be nice to use the same name for the OpenCores project and the
device tree identifier, and since "opencores" is already in the name,
the "oc_" bit is superfluous anyway.  I'd suggest "opencores,tiny-spi"
in order to match your OpenCores project name.

Versioning of OpenCores cores is not sorted yet.  In order to avoid
clashing with the versioning/naming scheme that's decided on, please
just use a neutral version number for now (especially as your core is so
new).  e.g. "opencores,tiny-spi-0"

/Jonas

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