linux-kernel - Re: [PATCH 1/2] regmap: debugfs: Add a registers `range' file

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Date:	Thu, 14 Feb 2013 14:43:06 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Dimitris Papastamos <dp@...nsource.wolfsonmicro.com>
Cc:	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: Re: [PATCH 1/2] regmap: debugfs: Add a registers `range' file

On Thu, Feb 14, 2013 at 12:31:44PM +0000, Dimitris Papastamos wrote:

> @@ -96,6 +116,7 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map,
>  				if (c) {
>  					c->max = p - 1;
>  					c->max_reg = i - 1;
> +					c->reg_attr = regmap_attr_bitmap(map, c->max_reg);
>  					list_add_tail(&c->list,
>  						      &map->debugfs_off_cache);
>  					c = NULL;

What happens if we have three registers like below?

   X:   read, write
   X+1: read, write, volatile
   X+2: read, write

It looks like we'll not flag X+1 as volatile, we'll just take the last
value we saw.

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