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Message-Id: <1370280888-15072-1-git-send-email-swarren@wwwdotorg.org> Date: Mon, 3 Jun 2013 11:34:48 -0600 From: Stephen Warren <swarren@...dotorg.org> To: Mark Brown <broonie@...nel.org> Cc: linux-kernel@...r.kernel.org, Stephen Warren <swarren@...dia.com> Subject: [PATCH] regmap: assume registers are volatile iff no cache From: Stephen Warren <swarren@...dia.com> If a regmap has a cache, it's likely that registers are not volatile, perhaps with exceptions. Otherwise, the cache would not be useful. Encode this assumption into regmap_volatile()'s default return value, for the case where a regmap doesn't specify which registers are volatile. Signed-off-by: Stephen Warren <swarren@...dia.com> --- drivers/base/regmap/regmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 1a01553..feb37af 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -123,7 +123,7 @@ bool regmap_volatile(struct regmap *map, unsigned int reg) if (map->volatile_table) return regmap_check_range_table(map, reg, map->volatile_table); - return true; + return (map->cache_type == REGCACHE_NONE); } bool regmap_precious(struct regmap *map, unsigned int reg) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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