linux-kernel - [PATCH AUTOSEL 6.5 13/30] wifi: mt76: mt7921e: Support MT7992 IP in Xiaomi Redmibook 15 Pro (2023)

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Message-ID: <20231107120922.3757126-13-sashal@kernel.org>
Date:   Tue,  7 Nov 2023 07:08:28 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Ingo Rohloff <lundril@....de>, Felix Fietkau <nbd@....name>,
        Sasha Levin <sashal@...nel.org>, lorenzo@...nel.org,
        ryder.lee@...iatek.com, kvalo@...nel.org, matthias.bgg@...il.com,
        angelogioacchino.delregno@...labora.com, bhelgaas@...gle.com,
        deren.wu@...iatek.com, sean.wang@...iatek.com,
        quan.zhou@...iatek.com, Leon.Yen@...iatek.com,
        linux-wireless@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-pci@...r.kernel.org
Subject: [PATCH AUTOSEL 6.5 13/30] wifi: mt76: mt7921e: Support MT7992 IP in Xiaomi Redmibook 15 Pro (2023)

From: Ingo Rohloff <lundril@....de>

[ Upstream commit fce9c967820a72f600abbf061d7077861685a14d ]

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@....de>
Signed-off-by: Felix Fietkau <nbd@....name>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 95610a117d2f0..ed5a220763ce6 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 8f9a459e16718..e0a11d34ec998 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
-- 
2.42.0