[PATCH 7/8] mfd: twl-core: make reg_write callback take const void *
From: Link Mauve
Date: Wed Jul 15 2026 - 13:56:21 EST
The previous commit switched from a pointer to mutable data to a pointer
to immutable data, so let’s fix all users of the nvmem_config API.
Signed-off-by: Link Mauve <linkmauve@xxxxxxxxxxxx>
---
drivers/mfd/twl-core.c | 2 +-
include/linux/mfd/twl.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index c024a28b057e..d7e3ab41717b 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -447,7 +447,7 @@ static struct regmap *twl_get_regmap(u8 mod_no)
*
* Returns 0 on success or else a negative error code.
*/
-int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
+int twl_i2c_write(u8 mod_no, const u8 *value, u8 reg, unsigned num_bytes)
{
struct regmap *regmap = twl_get_regmap(mod_no);
int ret;
diff --git a/include/linux/mfd/twl.h b/include/linux/mfd/twl.h
index b31e07fa4d51..131451d70960 100644
--- a/include/linux/mfd/twl.h
+++ b/include/linux/mfd/twl.h
@@ -168,7 +168,7 @@ int twl_set_regcache_bypass(u8 mod_no, bool enable);
/*
* Read and write several 8-bit registers at once.
*/
-int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes);
+int twl_i2c_write(u8 mod_no, const u8 *value, u8 reg, unsigned num_bytes);
int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes);
/*
@@ -186,7 +186,7 @@ static inline int twl_i2c_write_u16(u8 mod_no, u16 val, u8 reg) {
__le16 value;
value = cpu_to_le16(val);
- return twl_i2c_write(mod_no, (u8 *) &value, reg, 2);
+ return twl_i2c_write(mod_no, (const u8 *) &value, reg, 2);
}
static inline int twl_i2c_read_u16(u8 mod_no, u16 *val, u8 reg) {
--
2.55.0