On Fri, Jun 02, 2023 at 01:03:24PM -0500, Jim Wylder wrote: > Requesting that this regmap fix be cherry picked into the active > stable releases 5.15 and later (5.15 being the earliest I was able > to test). > > Commit 3981514180c987a79ea98f0ae06a7cbf58a9ac0f fixes a error in > _regmap_raw_write() when chunking a transmission larger than the > maximum write size for the bus and when bus writes the address > and any padding along with the data. > > Jim > > The original commit message is: > > ------ > commit 3981514180c987a79ea98f0ae06a7cbf58a9ac0f > Author: Jim Wylder <jwylder@xxxxxxxxxx> > Date: Wed May 17 10:20:11 2023 -0500 > > regmap: Account for register length when chunking > > 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@xxxxxxxxxx > Link: https://lore.kernel.org/r/20230517152444.3690870-2-jwylder@xxxxxxxxxx > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx > ------ Now queued up, thanks. greg k-h
