On 2019-04-26 at 11:07 +0200, Lucas Stach wrote: > > Am Freitag, den 26.04.2019, 08:05 +0000 schrieb Robin Gong: > > static void mx51_setup_wml(struct spi_imx_data *spi_imx) > > { > > + u32 tx_wml = 0; > > + > With a wml of 0 you might set the maxburst of the TX dma channel to > fifosize to minimize the performance impact of this workaround. > > Regards, > Lucas Unfortunately, this is a MUST part of errata which cause performance drop.