From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@ti.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] regmap: Add support for writing to regmap `registers'
Date: Wed, 22 Feb 2012 13:57:10 +0000 [thread overview]
Message-ID: <20120222135710.GA10237@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20120222125551.GB7340@opensource.wolfsonmicro.com>
On Wed, Feb 22, 2012 at 12:55:52PM +0000, Mark Brown wrote:
> On Wed, Feb 22, 2012 at 12:43:50PM +0000, Dimitris Papastamos wrote:
> > To enable writing to the regmap `registers' file, users will
> > need to modify the source directly and #define REGMAP_ALLOW_WRITE_DEBUGFS.
> > The reason for this is that it is dangerous to expose this
> > functionality in general where clients could potentially be PMICs.
> >
> > static const struct file_operations regmap_map_fops = {
> > .open = regmap_open_file,
> > .read = regmap_map_read_file,
> > +#ifdef REGMAP_ALLOW_WRITE_DEBUGFS
> > + .write = regmap_map_write_file,
> > +#endif
>
> It's also a bit more idiomatic to have an #else #define function NULL in
> the main ifdef for stuff like this; I'll fix that up as well.
Oops yea, that makes sense.
Thanks,
Dimitris
prev parent reply other threads:[~2012-02-22 13:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-22 12:43 [PATCH 2/3] regmap: Add support for writing to regmap `registers' Dimitris Papastamos
2012-02-22 12:55 ` Mark Brown
2012-02-22 13:57 ` Dimitris Papastamos [this message]
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