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

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

[Ingo Rohloff]

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>
---
 drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 2 ++
 include/linux/pci_ids.h                         | 1 +
 2 files changed, 3 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..c2d5c482cd7d 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2126,6 +2126,7 @@
 #define PCI_VENDOR_ID_MYRICOM		0x14c1

 #define PCI_VENDOR_ID_MEDIATEK		0x14c3
+#define PCI_VENDOR_ID_ITTIM		0x0b48
 #define PCI_DEVICE_ID_MEDIATEK_7629	0x7629

 #define PCI_VENDOR_ID_TITAN		0x14D2
--
2.25.1

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

[Bjorn Helgaas]

On Thu, Aug 24, 2023 at 03:52:32PM +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.

> --- a/include/linux/pci_ids.h
> +++ b/include/linux/pci_ids.h
> @@ -2126,6 +2126,7 @@
>  #define PCI_VENDOR_ID_MYRICOM		0x14c1
> 
>  #define PCI_VENDOR_ID_MEDIATEK		0x14c3
> +#define PCI_VENDOR_ID_ITTIM		0x0b48

Please add this in the correct place so the file remains sorted by
numeric Vendor ID and Device ID.  If you look at other PCI_VENDOR_ID_*
definitions, you'll see the pattern.

>  #define PCI_DEVICE_ID_MEDIATEK_7629	0x7629
> 
>  #define PCI_VENDOR_ID_TITAN		0x14D2
> --
> 2.25.1
>