On 21-11-20, 19:41, Bjorn Andersson wrote: > From: Stephen Boyd <swboyd@xxxxxxxxxxxx> > > The SMMU that sits in front of the QUP needs to be programmed properly > so that the i2c geni driver can allocate DMA descriptors. Failure to do > this leads to faults when using devices such as an i2c touchscreen where > the transaction is larger than 32 bytes and we use a DMA buffer. > > arm-smmu 15000000.iommu: Unexpected global fault, this could be serious > arm-smmu 15000000.iommu: GFSR 0x00000002, GFSYNR0 0x00000002, GFSYNR1 0x000006c0, GFSYNR2 0x00000000 > > Add the right SID and mask so this works. Reviewed-by: Vinod Koul <vkoul@xxxxxxxxxx> on DB845c with GSI DMA: Tested-by: Vinod Koul <vkoul@xxxxxxxxxx> -- ~Vinod
