Re: [PATCH v3 5/5] PCI: epf-mhi: Enable HDMA for SA8775P SoC

From: Frank Li
Date: Mon Feb 26 2024 - 11:34:47 EST


On Mon, Feb 26, 2024 at 05:07:30PM +0530, Manivannan Sadhasivam wrote:
> From: Mrinmay Sarkar <quic_msarkar@xxxxxxxxxxx>
>
> SA8775P SoC supports Hyper DMA (HDMA) DMA Engine present in the DWC IP. So,
> let's enable it in the EPF driver so that the DMA Engine APIs can be used
> for data transfer.
>
> Signed-off-by: Mrinmay Sarkar <quic_msarkar@xxxxxxxxxxx>
> [mani: reworded commit message]
> Reviewed-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>

Reviewed-by: Frank Li <Frank.Li@xxxxxxx>

> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---
> drivers/pci/endpoint/functions/pci-epf-mhi.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c
> index 2c54d80107cf..570c1d1fb12e 100644
> --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c
> +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c
> @@ -137,6 +137,7 @@ static const struct pci_epf_mhi_ep_info sa8775p_info = {
> .epf_flags = PCI_BASE_ADDRESS_MEM_TYPE_32,
> .msi_count = 32,
> .mru = 0x8000,
> + .flags = MHI_EPF_USE_DMA,
> };
>
> struct pci_epf_mhi {
>
> --
> 2.25.1
>