Hello, Manivannan, you will be taking this through the MHI tree, correct? > Now that both eDMA and iATU are prepared to support async transfer, let's > enable MHI async read/write by supplying the relevant callbacks. > > In the absence of eDMA, iATU will be used for both sync and async > operations. > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > --- > drivers/pci/endpoint/functions/pci-epf-mhi.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c > index 3d09a37e5f7c..d3d6a1054036 100644 > --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c > +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c > @@ -766,12 +766,13 @@ static int pci_epf_mhi_link_up(struct pci_epf *epf) > mhi_cntrl->raise_irq = pci_epf_mhi_raise_irq; > mhi_cntrl->alloc_map = pci_epf_mhi_alloc_map; > mhi_cntrl->unmap_free = pci_epf_mhi_unmap_free; > + mhi_cntrl->read_sync = mhi_cntrl->read_async = pci_epf_mhi_iatu_read; > + mhi_cntrl->write_sync = mhi_cntrl->write_async = pci_epf_mhi_iatu_write; > if (info->flags & MHI_EPF_USE_DMA) { > mhi_cntrl->read_sync = pci_epf_mhi_edma_read; > mhi_cntrl->write_sync = pci_epf_mhi_edma_write; > - } else { > - mhi_cntrl->read_sync = pci_epf_mhi_iatu_read; > - mhi_cntrl->write_sync = pci_epf_mhi_iatu_write; > + mhi_cntrl->read_async = pci_epf_mhi_edma_read_async; > + mhi_cntrl->write_async = pci_epf_mhi_edma_write_async; > } Looks good! Reviewed-by: Krzysztof Wilczyński <kw@xxxxxxxxx> Krzysztof