From mboxrd@z Thu Jan 1 00:00:00 1970 From: mpa@pengutronix.de (Markus Pargmann) Date: Thu, 20 Aug 2015 11:12:36 +0200 Subject: [PATCH v2 5/5] regmap: No multi_write support if bus->write does not exist In-Reply-To: <1440061956-29064-1-git-send-email-mpa@pengutronix.de> References: <1440061956-29064-1-git-send-email-mpa@pengutronix.de> Message-ID: <1440061956-29064-6-git-send-email-mpa@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org There is no multi_write support available if we cannot use raw_write. This is the case if bus->write is not implemented. This patch adds a condition that we need bus and bus->write so that can_multi_write is true. Signed-off-by: Markus Pargmann --- 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 66efe25d64c9..d43723bb3257 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -575,7 +575,7 @@ struct regmap *regmap_init(struct device *dev, map->reg_stride = 1; map->use_single_read = config->use_single_rw || !bus || !bus->read; map->use_single_write = config->use_single_rw || !bus || !bus->write; - map->can_multi_write = config->can_multi_write; + map->can_multi_write = config->can_multi_write && bus && bus->write; map->dev = dev; map->bus = bus; map->bus_context = bus_context; -- 2.4.6