This is a note to let you know that I've just added the patch titled
bus: mhi: host: pci_generic: Add Telit FN920C04 modem support
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bus-mhi-host-pci_generic-add-telit-fn920c04-modem-support.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
From [email protected] Wed Dec 3 22:54:10 2025
From: Fabio Porcedda <[email protected]>
Date: Wed, 3 Dec 2025 14:53:52 +0100
Subject: bus: mhi: host: pci_generic: Add Telit FN920C04 modem support
To: [email protected], Greg Kroah-Hartman <[email protected]>
Cc: [email protected], [email protected], Daniele Palmas <[email protected]>, Manivannan Sadhasivam <[email protected]>, Fabio Porcedda <[email protected]>
Message-ID: <d2b91b3097c693f784393a28801a3885778615df.1764769310.git.fabio.porcedda@gmail.com>
From: Daniele Palmas <[email protected]>
commit 6348f62ef7ecc5855b710a7d4ea682425c38bb80 upstream.
Add SDX35 based modem Telit FN920C04.
$ lspci -vv
01:00.0 Unassigned class [ff00]: Qualcomm Device 011a
Subsystem: Device 1c5d:2020
Signed-off-by: Daniele Palmas <[email protected]>
Signed-off-by: Manivannan Sadhasivam <[email protected]>
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Fabio Porcedda <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/bus/mhi/host/pci_generic.c | 39 +++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -698,6 +698,42 @@ static const struct mhi_pci_dev_info mhi
.mru_default = 32768,
};
+static const struct mhi_channel_config mhi_telit_fn920c04_channels[] = {
+ MHI_CHANNEL_CONFIG_UL_SBL(2, "SAHARA", 32, 0),
+ MHI_CHANNEL_CONFIG_DL_SBL(3, "SAHARA", 32, 0),
+ MHI_CHANNEL_CONFIG_UL(4, "DIAG", 64, 1),
+ MHI_CHANNEL_CONFIG_DL(5, "DIAG", 64, 1),
+ MHI_CHANNEL_CONFIG_UL(14, "QMI", 32, 0),
+ MHI_CHANNEL_CONFIG_DL(15, "QMI", 32, 0),
+ MHI_CHANNEL_CONFIG_UL(32, "DUN", 32, 0),
+ MHI_CHANNEL_CONFIG_DL(33, "DUN", 32, 0),
+ MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0),
+ MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0),
+ MHI_CHANNEL_CONFIG_UL(92, "DUN2", 32, 1),
+ MHI_CHANNEL_CONFIG_DL(93, "DUN2", 32, 1),
+ MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0", 128, 2),
+ MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3),
+};
+
+static const struct mhi_controller_config modem_telit_fn920c04_config = {
+ .max_channels = 128,
+ .timeout_ms = 50000,
+ .num_channels = ARRAY_SIZE(mhi_telit_fn920c04_channels),
+ .ch_cfg = mhi_telit_fn920c04_channels,
+ .num_events = ARRAY_SIZE(mhi_telit_fn990_events),
+ .event_cfg = mhi_telit_fn990_events,
+};
+
+static const struct mhi_pci_dev_info mhi_telit_fn920c04_info = {
+ .name = "telit-fn920c04",
+ .config = &modem_telit_fn920c04_config,
+ .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
+ .dma_data_width = 32,
+ .sideband_wake = false,
+ .mru_default = 32768,
+ .edl_trigger = true,
+};
+
static const struct mhi_pci_dev_info mhi_netprisma_lcur57_info = {
.name = "netprisma-lcur57",
.edl = "qcom/prog_firehose_sdx24.mbn",
@@ -720,6 +756,9 @@ static const struct mhi_pci_dev_info mhi
/* Keep the list sorted based on the PID. New VID should be added as the last entry */
static const struct pci_device_id mhi_pci_id_table[] = {
+ /* Telit FN920C04 (sdx35) */
+ {PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x011a, 0x1c5d, 0x2020),
+ .driver_data = (kernel_ulong_t) &mhi_telit_fn920c04_info },
{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0304),
.driver_data = (kernel_ulong_t) &mhi_qcom_sdx24_info },
{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0306, PCI_VENDOR_ID_QCOM, 0x010c),
Patches currently in stable-queue which might be from [email protected] are
queue-6.12/bus-mhi-host-pci_generic-add-telit-fn920c04-modem-support.patch
queue-6.12/usb-serial-option-add-telit-cinterion-fe910c04-new-compositions.patch
queue-6.12/bus-mhi-host-pci_generic-add-telit-fn990b40-modem-support.patch
queue-6.12/usb-serial-option-move-telit-0x10c7-composition-in-the-right-place.patch
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