Re: [PATCH] mhi: pci_generic: add support for sc8280xp-crd SDX55 variant

From: Manivannan Sadhasivam
Date: Tue Nov 01 2022 - 07:49:43 EST


On Mon, Oct 31, 2022 at 09:34:29AM +0100, Johan Hovold wrote:
> The SC8280XP Compute Reference Design (CRD) has an on-PCB SDX55 modem
> which uses MBIM.
>
> The exact channel configuration is not known but the Foxconn SDX55
> configuration allows the modem to be used so reuse that one for now.
>
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> ---
> drivers/bus/mhi/host/pci_generic.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
> index caa4ce28cf9e..f9f4345d472d 100644
> --- a/drivers/bus/mhi/host/pci_generic.c
> +++ b/drivers/bus/mhi/host/pci_generic.c
> @@ -542,6 +542,9 @@ static const struct mhi_pci_dev_info mhi_telit_fn990_info = {
> static const struct pci_device_id mhi_pci_id_table[] = {
> { PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0304),
> .driver_data = (kernel_ulong_t) &mhi_qcom_sdx24_info },
> + /* SC8280XP-CRD (sdx55) */

Platform device name is not needed.

> + { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0306, PCI_VENDOR_ID_QCOM, 0x010c),

Sub ID looks wierd. Did you test with mhi_qcom_sdx55_info? If it didn't
work, what was the issue?

Thanks,
Mani

> + .driver_data = (kernel_ulong_t) &mhi_foxconn_sdx55_info },
> /* EM919x (sdx55), use the same vid:pid as qcom-sdx55m */
> { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0306, 0x18d7, 0x0200),
> .driver_data = (kernel_ulong_t) &mhi_sierra_em919x_info },
> --
> 2.37.3
>
>

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