[PATCH] nvmem: regmap: Fix nvmem size

[Robin van der Gracht <robin@protonic.nl>]

We should add 1 to the max_register index since counting is zero based.

i.e. the stm32mp151 bsec has registers 0 - 95 with reg_stride 4.
Size should be (95 + 1) * 4 = 384 bytes otherwise we can't access bsec
register 95 (last one).

Signed-off-by: Robin van der Gracht <robin@protonic.nl>
---
 drivers/nvmem/regmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvmem/regmap.c b/drivers/nvmem/regmap.c
index fa5405d7a8..ffc96a310f 100644
--- a/drivers/nvmem/regmap.c
+++ b/drivers/nvmem/regmap.c
@@ -78,7 +78,7 @@ nvmem_regmap_register_with_pp(struct regmap *map, const char *name,
 	config.priv = map;
 	config.stride = 1;
 	config.word_size = 1;
-	config.size = regmap_get_max_register(map) * regmap_get_reg_stride(map);
+	config.size = (regmap_get_max_register(map) + 1) * regmap_get_reg_stride(map);
 	config.cell_post_process = cell_post_process;
 	config.reg_write = nvmem_regmap_write;
 	config.reg_read = nvmem_regmap_read;
-- 
2.40.1