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Message-ID: <Zdy9kqRDWeaazjle@lizhi-Precision-Tower-5810>
Date: Mon, 26 Feb 2024 11:34:26 -0500
From: Frank Li <Frank.li@....com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Jingoo Han <jingoohan1@...il.com>,
Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof WilczyĆski <kw@...ux.com>,
Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
Marek Vasut <marek.vasut+renesas@...il.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
Kishon Vijay Abraham I <kishon@...nel.org>,
Serge Semin <fancer.lancer@...il.com>, linux-pci@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
linux-arm-msm@...r.kernel.org, mhi@...ts.linux.dev,
Mrinmay Sarkar <quic_msarkar@...cinc.com>,
Siddharth Vadapalli <s-vadapalli@...com>
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 <quic_msarkar@...cinc.com>
>
> 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@...cinc.com>
> [mani: reworded commit message]
> Reviewed-by: Siddharth Vadapalli <s-vadapalli@...com>
Reviewed-by: Frank Li <Frank.Li@....com>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> ---
> 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
>
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