[PATCH 1/2] regmap: Add a function to check if a regmap register is cached

[Mark Brown]

On Thu, Aug 04, 2016 at 05:55:57PM +0300, Cristian Birsan wrote:

> +bool regmap_cached(struct regmap *map, unsigned int reg)
> +{
> +	if (map->cache == REGCACHE_NONE)
> +		return false;
> +
> +	if (!map->cache_ops)
> +		return false;
> +
> +	if (map->max_register && reg > map->max_register)
> +		return false;
> +
> +	return true;
> +}

As Lars said this isn't actually checking if the register is cached.  To
do this you need to modify the output code to check if there's a value
cached and try a read if there is one instead.
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