Backport support for Telit FN920C04 and FN990B40 modems

PATCH Applied Fabio Porcedda 2 participants 5 messages Dec 3, 2025 – Dec 10, 2025

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Stable branch Arm Qualcomm mailing list MHI bus

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Fabio Porcedda

author

2025-12-03 13:54 UTC #0 lore raw

cover Backport support for Telit FN920C04 and FN990B40 modems

Hi,
these two patches are backports for 6.12.y of the following commits:

commit d2b91b3097c693f784393a28801a3885778615df
bus: mhi: host: pci_generic: Add Telit FN920C04 modem support

commit 00559ba3ae740e7544b48fb509b2b97f56615892
bus: mhi: host: pci_generic: Add Telit FN990B40 modem support

The cherry-pick of the original commits don't apply so I made this patches after fixing the conflict.

Regards

Daniele Palmas (2):
bus: mhi: host: pci_generic: Add Telit FN920C04 modem support
bus: mhi: host: pci_generic: Add Telit FN990B40 modem support

 drivers/bus/mhi/host/pci_generic.c | 52 ++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

Signature · 1 line

2.52.0

Fabio Porcedda

author

2025-12-03 13:54 UTC #1 lore raw

PATCH 1/2 bus: mhi: host: pci_generic: Add Telit FN920C04 modem support

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] open here

Signed-off-by Fabio Porcedda <[email protected]>

---
 drivers/bus/mhi/host/pci_generic.c | 39 ++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

drivers/bus/mhi/host/pci_generic.c +39 -0

index 6505ce6ab1a2..b8520ca40e8c 100644
@@ -698,6 +698,42 @@ static const struct mhi_pci_dev_info mhi_telit_fe990a_info = {
 	.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_netprisma_fcun69_info = {
 
 /* 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),

Signature · 1 line

2.52.0

[email protected]

maintainer Applied

2025-12-10 07:27 UTC #2 lore raw

Patch "bus: mhi: host: pci_generic: Add Telit FN920C04 modem support" has been added to the 6.12-stable tree

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] open here

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(+)

drivers/bus/mhi/host/pci_generic.c +39 -0

@@ -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

Fabio Porcedda

author

2025-12-03 13:54 UTC #3 lore raw

PATCH 2/2 bus: mhi: host: pci_generic: Add Telit FN990B40 modem support

In reply to Fabio Porcedda

From: Daniele Palmas <[email protected]>

commit 00559ba3ae740e7544b48fb509b2b97f56615892 upstream.

Add SDX72 based modem Telit FN990B40, reusing FN920C04 configuration.

01:00.0 Unassigned class [ff00]: Qualcomm Device 0309

        Subsystem: Device 1c5d:201a

Signed-off-by Daniele Palmas <[email protected]>

[mani: added sdx72 in the comment to identify the chipset]

Signed-off-by Manivannan Sadhasivam <[email protected]>

Link https://patch.msgid.link/[email protected] open here

Signed-off-by Fabio Porcedda <[email protected]>

---
 drivers/bus/mhi/host/pci_generic.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

drivers/bus/mhi/host/pci_generic.c +13 -0

index b8520ca40e8c..abf070760d68 100644
@@ -734,6 +734,16 @@ static const struct mhi_pci_dev_info mhi_telit_fn920c04_info = {
 	.edl_trigger = true,
 };
 
+static const struct mhi_pci_dev_info mhi_telit_fn990b40_info = {
+	.name = "telit-fn990b40",
+	.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",

@@ -779,6 +789,9 @@ static const struct pci_device_id mhi_pci_id_table[] = {
 		.driver_data = (kernel_ulong_t) &mhi_telit_fe990a_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0308),
 		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx65_info },
+	/* Telit FN990B40 (sdx72) */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0309, 0x1c5d, 0x201a),
+		.driver_data = (kernel_ulong_t) &mhi_telit_fn990b40_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0309),
 		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx75_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QUECTEL, 0x1001), /* EM120R-GL (sdx24) */

Signature · 1 line

2.52.0

[email protected]

maintainer Applied

2025-12-10 07:27 UTC #4 lore raw

Patch "bus: mhi: host: pci_generic: Add Telit FN990B40 modem support" has been added to the 6.12-stable tree

This is a note to let you know that I've just added the patch titled

bus: mhi: host: pci_generic: Add Telit FN990B40 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-fn990b40-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 22:54:14 2025
From: Fabio Porcedda <[email protected]>
Date: Wed, 3 Dec 2025 14:53:53 +0100
Subject: bus: mhi: host: pci_generic: Add Telit FN990B40 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: <5091bf715f9ecf449b270af23352be15e4560df7.1764769310.git.fabio.porcedda@gmail.com>

From: Daniele Palmas <[email protected]>

commit 00559ba3ae740e7544b48fb509b2b97f56615892 upstream.

Add SDX72 based modem Telit FN990B40, reusing FN920C04 configuration.

01:00.0 Unassigned class [ff00]: Qualcomm Device 0309

        Subsystem: Device 1c5d:201a

Signed-off-by Daniele Palmas <[email protected]>

[mani: added sdx72 in the comment to identify the chipset]

Signed-off-by Manivannan Sadhasivam <[email protected]>

Link https://patch.msgid.link/[email protected] open here

Signed-off-by Fabio Porcedda <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 drivers/bus/mhi/host/pci_generic.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

drivers/bus/mhi/host/pci_generic.c +13 -0

@@ -734,6 +734,16 @@ static const struct mhi_pci_dev_info mhi
 	.edl_trigger = true,
 };
 
+static const struct mhi_pci_dev_info mhi_telit_fn990b40_info = {
+	.name = "telit-fn990b40",
+	.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",

@@ -779,6 +789,9 @@ static const struct pci_device_id mhi_pc
 		.driver_data = (kernel_ulong_t) &mhi_telit_fe990a_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0308),
 		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx65_info },
+	/* Telit FN990B40 (sdx72) */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0309, 0x1c5d, 0x201a),
+		.driver_data = (kernel_ulong_t) &mhi_telit_fn990b40_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0309),
 		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx75_info },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QUECTEL, 0x1001), /* EM120R-GL (sdx24) */

Patches currently in stable-queue which might be from [email protected] are