> On 12.04.2019, at 11:47, Mark Brown <broo...@kernel.org> wrote: > > >> In a previous version of this I suggested to Meghana to put this in the >> driver, but Mark wanted it in the core. > > If we want to do this at a lower level the DMA code could hide this > limitation from the upper layers; presumably the SPI driver isn't the > only thing that might run into this.
For clarification: There is a register of the SPI controller where you have to configure the number of bytes that it will request via DMA (primarily support transfers that are not a multiple of 4 - the data is transferred by DMA as words). So it is not really related to the general DMA implementation but to the DMA (request) support of the SPI controller. Martin _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel