From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: linux-kernel@vger.kernel.org, patches@opensource.wolfsonmicro.com
Subject: Re: [PATCH v3] regmap: debugfs: Add a registers `range' file
Date: Fri, 8 Feb 2013 12:50:37 +0000 [thread overview]
Message-ID: <20130208125037.GA11827@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20130208114654.GQ8879@opensource.wolfsonmicro.com>
On Fri, Feb 08, 2013 at 11:46:55AM +0000, Mark Brown wrote:
> On Fri, Feb 01, 2013 at 12:05:39PM +0000, Dimitris Papastamos wrote:
>
> > +struct regmap_reg_range {
> > + unsigned int start;
> > + unsigned int end;
> > + unsigned int attr;
> > +};
>
> > + i = start_reg;
> > + while (i <= map->max_register) {
> > + reg_attr = regmap_attr_bitmap(map, i);
> > + switch (state) {
>
> We're doing a linear scan through the entire register map here in order
> to build up a list of which registers exist, doing it every time the
> file is read. This data structure looks *very* like the one we have for
> the reads themselves, it seems like we should be sharing the work here
> and using the same cache.
Yea that's true. Will fix this and re-send.
Thanks,
Dimitris
prev parent reply other threads:[~2013-02-08 12:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-01 12:05 [PATCH v3] regmap: debugfs: Add a registers `range' file Dimitris Papastamos
2013-02-08 11:46 ` Mark Brown
2013-02-08 12:50 ` Dimitris Papastamos [this message]
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