Merge remote-tracking branch 'regmap/for-next' into sound/upstream-20250102

Author: bardliao

drivers/base/regmap/regcache-maple.c

@@ -73,8 +73,7 @@ static int regcache_maple_write(struct regmap *map, unsigned int reg,
 
 	rcu_read_unlock();
 
-	entry = kmalloc((last - index + 1) * sizeof(unsigned long),
-			map->alloc_flags);
+	entry = kmalloc_array(last - index + 1, sizeof(*entry), map->alloc_flags);
 	if (!entry)
 		return -ENOMEM;
 
@@ -204,7 +203,7 @@ static int regcache_maple_sync_block(struct regmap *map, unsigned long *entry,
 	 * overheads.
 	 */
 	if (max - min > 1 && regmap_can_raw_write(map)) {
-		buf = kmalloc(val_bytes * (max - min), map->alloc_flags);
+		buf = kmalloc_array(max - min, val_bytes, map->alloc_flags);
 		if (!buf) {
 			ret = -ENOMEM;
 			goto out;
@@ -320,7 +319,7 @@ static int regcache_maple_insert_block(struct regmap *map, int first,
 	unsigned long *entry;
 	int i, ret;
 
-	entry = kcalloc(last - first + 1, sizeof(unsigned long), map->alloc_flags);
+	entry = kmalloc_array(last - first + 1, sizeof(*entry), map->alloc_flags);
 	if (!entry)
 		return -ENOMEM;
 

drivers/base/regmap/regcache-rbtree.c

@@ -275,18 +275,16 @@ static int regcache_rbtree_insert_to_block(struct regmap *map,
 	pos = (reg - base_reg) / map->reg_stride;
 	offset = (rbnode->base_reg - base_reg) / map->reg_stride;
 
-	blk = krealloc(rbnode->block,
-		       blklen * map->cache_word_size,
-		       map->alloc_flags);
+	blk = krealloc_array(rbnode->block, blklen, map->cache_word_size, map->alloc_flags);
 	if (!blk)
 		return -ENOMEM;
 
 	rbnode->block = blk;
 
 	if (BITS_TO_LONGS(blklen) > BITS_TO_LONGS(rbnode->blklen)) {
-		present = krealloc(rbnode->cache_present,
-				   BITS_TO_LONGS(blklen) * sizeof(*present),
-				   map->alloc_flags);
+		present = krealloc_array(rbnode->cache_present,
+					 BITS_TO_LONGS(blklen), sizeof(*present),
+					 map->alloc_flags);
 		if (!present)
 			return -ENOMEM;
 

drivers/base/regmap/regcache.c

@@ -154,7 +154,7 @@ int regcache_init(struct regmap *map, const struct regmap_config *config)
 	map->num_reg_defaults = config->num_reg_defaults;
 	map->num_reg_defaults_raw = config->num_reg_defaults_raw;
 	map->reg_defaults_raw = config->reg_defaults_raw;
-	map->cache_word_size = DIV_ROUND_UP(config->val_bits, 8);
+	map->cache_word_size = BITS_TO_BYTES(config->val_bits);
 	map->cache_size_raw = map->cache_word_size * config->num_reg_defaults_raw;
 
 	map->cache = NULL;

drivers/base/regmap/regmap.c

@@ -769,14 +769,13 @@ struct regmap *__regmap_init(struct device *dev,
 		map->alloc_flags = GFP_KERNEL;
 
 	map->reg_base = config->reg_base;
+	map->reg_shift = config->pad_bits % 8;
 
-	map->format.reg_bytes = DIV_ROUND_UP(config->reg_bits, 8);
 	map->format.pad_bytes = config->pad_bits / 8;
 	map->format.reg_shift = config->reg_shift;
-	map->format.val_bytes = DIV_ROUND_UP(config->val_bits, 8);
-	map->format.buf_size = DIV_ROUND_UP(config->reg_bits +
-			config->val_bits + config->pad_bits, 8);
-	map->reg_shift = config->pad_bits % 8;
+	map->format.reg_bytes = BITS_TO_BYTES(config->reg_bits);
+	map->format.val_bytes = BITS_TO_BYTES(config->val_bits);
+	map->format.buf_size = BITS_TO_BYTES(config->reg_bits + config->val_bits + config->pad_bits);
 	if (config->reg_stride)
 		map->reg_stride = config->reg_stride;
 	else
@@ -3116,7 +3115,7 @@ int regmap_fields_read(struct regmap_field *field, unsigned int id,
 EXPORT_SYMBOL_GPL(regmap_fields_read);
 
 static int _regmap_bulk_read(struct regmap *map, unsigned int reg,
-			     unsigned int *regs, void *val, size_t val_count)
+			     const unsigned int *regs, void *val, size_t val_count)
 {
 	u32 *u32 = val;
 	u16 *u16 = val;
@@ -3210,7 +3209,7 @@ EXPORT_SYMBOL_GPL(regmap_bulk_read);
  * A value of zero will be returned on success, a negative errno will
  * be returned in error cases.
  */
-int regmap_multi_reg_read(struct regmap *map, unsigned int *regs, void *val,
+int regmap_multi_reg_read(struct regmap *map, const unsigned int *regs, void *val,
 			  size_t val_count)
 {
 	if (val_count == 0)

include/linux/regmap.h

@@ -1244,7 +1244,7 @@ int regmap_noinc_read(struct regmap *map, unsigned int reg,
 		      void *val, size_t val_len);
 int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
 		     size_t val_count);
-int regmap_multi_reg_read(struct regmap *map, unsigned int *reg, void *val,
+int regmap_multi_reg_read(struct regmap *map, const unsigned int *reg, void *val,
 			  size_t val_count);
 int regmap_update_bits_base(struct regmap *map, unsigned int reg,
 			    unsigned int mask, unsigned int val,