From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759382Ab3FCRe5 (ORCPT ); Mon, 3 Jun 2013 13:34:57 -0400 Received: from avon.wwwdotorg.org ([70.85.31.133]:33536 "EHLO avon.wwwdotorg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753395Ab3FCRez (ORCPT ); Mon, 3 Jun 2013 13:34:55 -0400 From: Stephen Warren To: Mark Brown Cc: linux-kernel@vger.kernel.org, Stephen Warren Subject: [PATCH] regmap: assume registers are volatile iff no cache Date: Mon, 3 Jun 2013 11:34:48 -0600 Message-Id: <1370280888-15072-1-git-send-email-swarren@wwwdotorg.org> X-Mailer: git-send-email 1.7.10.4 X-NVConfidentiality: public Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Stephen Warren 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 --- 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