HDA has a use case for checking if a register is present in the cache which it awkwardly open codes with use of _cache_only() and a read, provide a direct API for this.
--- Mark Brown (3): regmap: Let users check if a register is cached regmap: Provide test for regcache_reg_present() ALSA: hda: Use regcache_reg_cached() rather than open coding
drivers/base/regmap/regcache.c | 23 ++++++++++++++++++++++ drivers/base/regmap/regmap-kunit.c | 40 ++++++++++++++++++++++++++++++++++++++ include/linux/regmap.h | 1 + sound/hda/hdac_regmap.c | 9 +++------ 4 files changed, 67 insertions(+), 6 deletions(-) --- base-commit: 3953d5c79c21defa716624a8623c4157c0f2fee0 change-id: 20230716-regmap-cache-check-6f6939f41ed5
Best regards,