On Mon, 25 Jul 2022 23:08:47 +0200 Andy Shevchenko <andy.shevchenko@xxxxxxxxx> wrote: > On Sat, Jul 23, 2022 at 7:40 PM Angel Iglesias <ang.iglesiasg@xxxxxxxxx> wrote: > > > > Adds a DMA-safe buffer to driver data struct to store raw data from sensor > > > > Updated calibration read functions to use DMA-safe buffers as well. > > In this case, as calibration data is only read at sensor initialization, > > the buffers are allocated with kmalloc and freed after being processed. > > > Suggested-by: Jonathan Cameron <jic23@xxxxxxxxxx> > > Jonathan, maybe it's easier to fix in regmap once for all (something > like a new flag there dma_safe)? Also a side note: i2c doesn't need > that, since it has its own implementation. Possibly... Not something I want to tie up with an individual driver though as it might take a while and be (somewhat) controversial. Nice idea though as, if a bounce buffer is needed for a particular regmap operation it can implement one and when not, it can elide that step and just use the provided buffer directly. Jonathan > > P.S. Use sizeof() in regmap calls where it's appropriate. >
