2024-02-26 11:41:11

by Manivannan Sadhasivam

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

From: Mrinmay Sarkar <[email protected]>

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 <[email protected]>
[mani: reworded commit message]
Reviewed-by: Siddharth Vadapalli <[email protected]>
Signed-off-by: Manivannan Sadhasivam <[email protected]>
---
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

2024-02-26 16:34:48

by Frank Li

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

On Mon, Feb 26, 2024 at 05:07:30PM +0530, Manivannan Sadhasivam wrote:
> From: Mrinmay Sarkar <[email protected]>
>
> 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 <[email protected]>
> [mani: reworded commit message]
> Reviewed-by: Siddharth Vadapalli <[email protected]>

Reviewed-by: Frank Li <[email protected]>

> Signed-off-by: Manivannan Sadhasivam <[email protected]>
> ---
> 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
>