linux-kernel - [PATCH] bus: mhi: host: pci_generic: Add Quectel RM520N-GLAP to pci id table

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Message-Id: <20250729-add-rm520n-glap-support-v1-1-736ee6bbb385@fritscher.net>
Date: Tue, 29 Jul 2025 13:37:51 +0200
From: Michael Fritscher <michael@...tscher.net>
To: Manivannan Sadhasivam <mani@...nel.org>
Cc: mhi@...ts.linux.dev, linux-arm-msm@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Michael Fritscher <michael@...tscher.net>
Subject: [PATCH] bus: mhi: host: pci_generic: Add Quectel RM520N-GLAP to
 pci id table

Quectel RM520N-GLAP is a variant of Quectel RM520N-GLAA with fused out USB.
Add its PCI vendor and product id to the list to use the right dev info.

Signed-off-by: Michael Fritscher <michael@...tscher.net>
---
This series add support for the Quectel RM520N-GLAP, which uses a
Qualcomm PCI Vendor ID. Origin is linked at the end. After this it is
found as

MHI PCI device found: quectel-rm5xx

and works.

Link: https://forum.gl-inet.com/t/how-to-installing-vanilla-openwrt-on-gl-x3000/45404/15
---
 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 589cb6722316..3f3212dda5bb 100644
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -857,6 +857,9 @@ static const struct pci_device_id mhi_pci_id_table[] = {
 		.driver_data = (kernel_ulong_t) &mhi_telit_fn980_hw_v1_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0306),
 		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx55_info },
+	/* RM520N-GL variant with Qualcomm vendor and subvendor ID */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, PCI_VENDOR_ID_QCOM, 0x5201),
+		.driver_data = (kernel_ulong_t) &mhi_quectel_rm5xx_info },
 	/* Telit FN990 */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, 0x1c5d, 0x2010),
 		.driver_data = (kernel_ulong_t) &mhi_telit_fn990_info },

---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250729-add-rm520n-glap-support-8add91648721

Best regards,
-- 
Michael Fritscher <michael@...tscher.net>