diff options
| author | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2023-11-27 14:06:24 +0300 |
|---|---|---|
| committer | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2023-12-14 09:28:53 +0300 |
| commit | d1c6f4ba4746ed41fde8269cb5fea88bddb60504 (patch) | |
| tree | a41d6e920f5b54d6d0e768b034607551cb0333fc | |
| parent | 0d5d5738dc206e531d3a70c6a81fde4e9fa40b5d (diff) | |
| download | linux-d1c6f4ba4746ed41fde8269cb5fea88bddb60504.tar.xz | |
PCI: epf-mhi: Enable MHI async read/write support
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.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
| -rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-mhi.c | 7 |
1 files 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 596fd205a314..472bc489b754 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; } /* Register the MHI EP controller */ |