From 285cbcf97f2b1dcadedb6835b3e9662c7fba0fe2 Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Fri, 27 Apr 2018 11:56:14 +0200 Subject: regmap: add regmap_update_bits() helper Add the regmap_update_bits() to simply the read/modify/write of registers in a single command. The function is taken from Linux regmap implementation. Signed-off-by: Neil Armstrong Reviewed-by: Simon Glass --- include/regmap.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/regmap.h') diff --git a/include/regmap.h b/include/regmap.h index e96c79d..6a574ea 100644 --- a/include/regmap.h +++ b/include/regmap.h @@ -43,6 +43,16 @@ int regmap_read(struct regmap *map, uint offset, uint *valp); regmap_read(map, (uint32_t *)(ptr)->member - (uint32_t *)(ptr), valp) /** + * regmap_update_bits() - Perform a read/modify/write using a mask + * + * @map: The map returned by regmap_init_mem*() + * @offset: Offset of the memory + * @mask: Mask to apply to the read value + * @val: Value to apply to the value to write + */ +int regmap_update_bits(struct regmap *map, uint offset, uint mask, uint val); + +/** * regmap_init_mem() - Set up a new register map that uses memory access * * Use regmap_uninit() to free it. -- cgit v1.1