Merge tag 'regmap-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "In user visible terms just a couple of enhancements here, though there
  was a moderate amount of refactoring required in order to support the
  register cache sync performance improvements.

   - Support for block and asynchronous I/O during register cache
     syncing; this provides a use case dependant performance
     improvement.
   - Additional debugfs information on the memory consuption and
     register set"

* tag 'regmap-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (23 commits)
  regmap: don't corrupt work buffer in _regmap_raw_write()
  regmap: cache: Fix format specifier in dev_dbg
  regmap: cache: Make regcache_sync_block_raw static
  regmap: cache: Write consecutive registers in a single block write
  regmap: cache: Split raw and non-raw syncs
  regmap: cache: Factor out block sync
  regmap: cache: Factor out reg_present support from rbtree cache
  regmap: cache: Use raw I/O to sync rbtrees if we can
  regmap: core: Provide regmap_can_raw_write() operation
  regmap: cache: Provide a get address of value operation
  regmap: Cut down on the average # of nodes in the rbtree cache
  regmap: core: Make raw write available to regcache
  regmap: core: Warn on invalid operation combinations
  regmap: irq: Clarify error message when we fail to request primary IRQ
  regmap: rbtree Expose total memory consumption in the rbtree debugfs entry
  regmap: debugfs: Add a registers `range' file
  regmap: debugfs: Simplify calculation of `c->max_reg'
  regmap: cache: Store caches in native register format where possible
  regmap: core: Split out in place value parsing
  regmap: cache: Use regcache_get_value() to check if we updated
  ...

1 files changed, 34 insertions, 6 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 5a22bd33ce3d..c130536e0ab0 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -38,7 +38,8 @@ struct regmap_format {
 			     unsigned int reg, unsigned int val);
 	void (*format_reg)(void *buf, unsigned int reg, unsigned int shift);
 	void (*format_val)(void *buf, unsigned int val, unsigned int shift);
-	unsigned int (*parse_val)(void *buf);
+	unsigned int (*parse_val)(const void *buf);
+	void (*parse_inplace)(void *buf);
 };
 
 struct regmap_async {
@@ -76,6 +77,7 @@ struct regmap {
 	unsigned int debugfs_tot_len;
 
 	struct list_head debugfs_off_cache;
+	struct mutex cache_lock;
 #endif
 
 	unsigned int max_register;
@@ -125,6 +127,9 @@ struct regmap {
 	void *cache;
 	u32 cache_dirty;
 
+	unsigned long *cache_present;
+	unsigned int cache_present_nbits;
+
 	struct reg_default *patch;
 	int patch_regs;
 
@@ -187,12 +192,35 @@ int regcache_read(struct regmap *map,
 int regcache_write(struct regmap *map,
 			unsigned int reg, unsigned int value);
 int regcache_sync(struct regmap *map);
-
-unsigned int regcache_get_val(const void *base, unsigned int idx,
-			      unsigned int word_size);
-bool regcache_set_val(void *base, unsigned int idx,
-		      unsigned int val, unsigned int word_size);
+int regcache_sync_block(struct regmap *map, void *block,
+			unsigned int block_base, unsigned int start,
+			unsigned int end);
+
+static inline const void *regcache_get_val_addr(struct regmap *map,
+						const void *base,
+						unsigned int idx)
+{
+	return base + (map->cache_word_size * idx);
+}
+
+unsigned int regcache_get_val(struct regmap *map, const void *base,
+			      unsigned int idx);
+bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
+		      unsigned int val);
 int regcache_lookup_reg(struct regmap *map, unsigned int reg);
+int regcache_set_reg_present(struct regmap *map, unsigned int reg);
+
+static inline bool regcache_reg_present(struct regmap *map, unsigned int reg)
+{
+	if (!map->cache_present)
+		return true;
+	if (reg > map->cache_present_nbits)
+		return false;
+	return map->cache_present[BIT_WORD(reg)] & BIT_MASK(reg);
+}
+
+int _regmap_raw_write(struct regmap *map, unsigned int reg,
+		      const void *val, size_t val_len, bool async);
 
 void regmap_async_complete_cb(struct regmap_async *async, int ret);