b392ebc9b4a5d8c230 parent c86845dc7b56be050b9e53b31079e8bd0a3dc279 author Mark Brown 1322597436 +0000 committer Mark Brown 1322597750 +0000 regmap: Allow regmap_update_bits() users to detect changes Some users of regmap_update_bits() would like to be able to tell their users if they actually did an update so provide a variant which also returns a flag indicating if an update took place. We could return a tristate in the return value of regmap_update_bits() but this makes the API more cumbersome to use and doesn't fit with the general zero for success idiom we have. Signed-off-by: Mark Brown OŽ