On Wed, Mar 04, 2020 at 02:32:42PM +0100, Ulf Hansson wrote: > + Christoph, Arnd > > On Wed, 19 Feb 2020 at 09:31, <haibo.chen@xxxxxxx> wrote: > > > > From: Haibo Chen <haibo.chen@xxxxxxx> > > > > To make dma_set_max_seg_size() work, need to create dev->dma_parms. > > > > Find this issue on i.MX8QM mek board, this platform config the > > max_segment_size to 65535, but this dma_set_max_seg_size do not > > actuall work, find sometimes the segment size is 65536, exceed > > the hardware max segment limitation, trigger ADMA error. > > Sounds like we want something along the lines of this to be tagged for > stable as well. It really is not the job of the upper level driver to allocate the dma params. This should be done by the bus driver.
