Merge tag 'regmap-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "This is a much quieter release than the past few, there's one small
  API addition that I noticed a user for in ALSA and a bunch of
  cleanups:

   - Provide an interface for determining if a register is present in
     the cache and add a user of it in ALSA.

   - Full support for dynamic allocations, following the temporary
     bodges that were done as fixes in the previous release.

   - Remove the unused and questionably working 64 bit support"

* tag 'regmap-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: Fix the type used for a bitmap pointer
  regmap: Remove dynamic allocation warnings for rbtree and maple
  regmap: rbtree: Use alloc_flags for memory allocations
  regmap: maple: Use alloc_flags for memory allocations
  regmap: Reject fast_io regmap configurations with RBTREE and MAPLE caches
  ALSA: hda: Use regcache_reg_cached() rather than open coding
  regmap: Provide test for regcache_reg_present()
  regmap: Let users check if a register is cached
  regmap: Provide user selectable option to enable regmap
  regmap: mmio: Remove unused 64-bit support code
  regmap: cache: Revert "Add 64-bit mode support"
  regmap: Revert "add 64-bit mode support" and Co.

1 files changed, 3 insertions, 6 deletions

diff --git a/sound/hda/hdac_regmap.c b/sound/hda/hdac_regmap.c
index 9b1bcabd8414..97cee096a286 100644
--- a/sound/hda/hdac_regmap.c
+++ b/sound/hda/hdac_regmap.c
@@ -556,17 +556,14 @@ EXPORT_SYMBOL_GPL(snd_hdac_regmap_update_raw);
 static int reg_raw_update_once(struct hdac_device *codec, unsigned int reg,
 			       unsigned int mask, unsigned int val)
 {
-	unsigned int orig;
-	int err;
+	int err = 0;
 
 	if (!codec->regmap)
 		return reg_raw_update(codec, reg, mask, val);
 
 	mutex_lock(&codec->regmap_lock);
-	regcache_cache_only(codec->regmap, true);
-	err = regmap_read(codec->regmap, reg, &orig);
-	regcache_cache_only(codec->regmap, false);
-	if (err < 0)
+	/* Discard any updates to already initialised registers. */
+	if (!regcache_reg_cached(codec->regmap, reg))
 		err = regmap_update_bits(codec->regmap, reg, mask, val);
 	mutex_unlock(&codec->regmap_lock);
 	return err;