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

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 <dnlplm@gmail.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patch.msgid.link/20250401093458.2953872-1-dnlplm@gmail.com

diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 7501abc835c7b65665fde696571ed45144bed38c..a4a62429c784a8e727867217f915ac37bae72dcb 100644 (file)
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -782,6 +782,42 @@ 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",
@@ -806,6 +842,9 @@ static const struct mhi_pci_dev_info mhi_netprisma_fcun69_info = {
 static const struct pci_device_id mhi_pci_id_table[] = {
        {PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0116),
                .driver_data = (kernel_ulong_t) &mhi_qcom_sa8775p_info },
+       /* 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),