Re: [PATCH v2] wifi: mt76: mt7921e: Support MT7992 IP in Xiaomi Redmibook 15 Pro (2023)

[Bjorn Helgaas <helgaas@kernel.org>]

On Sat, Aug 26, 2023 at 10:02:41PM +0200, Ingo Rohloff wrote:
> In the Xiaomi Redmibook 15 Pro (2023) laptop I have got, a wifi chip is
> used, which according to its PCI Vendor ID is from "ITTIM Technology".
> 
> This chip works flawlessly with the mt7921e module.  The driver doesn't
> bind to this PCI device, because the Vendor ID from "ITTIM Technology" is
> not recognized.
> 
> This patch adds the PCI Vendor ID from "ITTIM Technology" to the list of
> PCI Vendor IDs and lets the mt7921e driver bind to the mentioned wifi
> chip.
> 
> Signed-off-by: Ingo Rohloff <lundril@gmx.de>

Acked-by: Bjorn Helgaas <bhelgaas@google.com>	# pci_ids.h

> ---
> Changes in v2:
> As requested, move the definition of the PCI Vendor ID for
> ITTIM Technology to the (hopefully) right place in pci_ids.h
> ---
>  drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 2 ++
>  include/linux/pci_ids.h                         | 2 ++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
> index 95610a117d2f..ed5a220763ce 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
> @@ -17,6 +17,8 @@ static const struct pci_device_id mt7921_pci_device_table[] = {
>  		.driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7922),
>  		.driver_data = (kernel_ulong_t)MT7922_FIRMWARE_WM },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_ITTIM, 0x7922),
> +		.driver_data = (kernel_ulong_t)MT7922_FIRMWARE_WM },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0608),
>  		.driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0616),
> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> index 2dc75df1437f..6ae1803bcd2f 100644
> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -180,6 +180,8 @@
>  #define PCI_DEVICE_ID_BERKOM_A4T		0xffa4
>  #define PCI_DEVICE_ID_BERKOM_SCITEL_QUADRO	0xffa8
> 
> +#define PCI_VENDOR_ID_ITTIM		0x0b48
> +
>  #define PCI_VENDOR_ID_COMPAQ		0x0e11
>  #define PCI_DEVICE_ID_COMPAQ_TOKENRING	0x0508
>  #define PCI_DEVICE_ID_COMPAQ_TACHYON	0xa0fc
> --
> 2.30.2
>