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

[PATCH v2] 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>
---
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

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

[Bjorn Helgaas]

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
>