[PATCH v2 5/5] regmap: No multi_write support if bus->write does not exist

From: Markus Pargmann
Date: Thu Aug 20 2015 - 05:13:56 EST


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 <mpa@xxxxxxxxxxxxxx>
---
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

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