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regmap: Account for register length when chunking
commit 3981514 upstream. Currently, when regmap_raw_write() splits the data, it uses the max_raw_write value defined for the bus. For any bus that includes the target register address in the max_raw_write value, the chunked transmission will always exceed the maximum transmission length. To avoid this problem, subtract the length of the register and the padding from the maximum transmission. Signed-off-by: Jim Wylder <jwylder@google.com Link: https://lore.kernel.org/r/20230517152444.3690870-2-jwylder@google.com Signed-off-by: Mark Brown <broonie@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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