bus: mhi: host: pci_generic: Add Foxconn T99W696 modem

T99W696 modem is based on Qualcomm SDX61 chipset, which is an economic
version compared to the baseline SDX62/SDX65 chipsets. Add support for it
by introducing a new 'mhi_channel_config'. Since this modem supports the
NMEA channel, a new config is needed.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
[mani: reworded commit message]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250528092232.16111-1-slark_xiao@163.com

diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 84d1e830b1da25049013e9b37a0178ca9d547edb..ec2c7410ce6233745d5d8408d7b665574a2e473d 100644 (file)
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -493,6 +493,23 @@ static const struct mhi_channel_config mhi_foxconn_sdx55_channels[] = {
        MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3),
 };
 
+static const struct mhi_channel_config mhi_foxconn_sdx61_channels[] = {
+       MHI_CHANNEL_CONFIG_UL(0, "LOOPBACK", 32, 0),
+       MHI_CHANNEL_CONFIG_DL(1, "LOOPBACK", 32, 0),
+       MHI_CHANNEL_CONFIG_UL(4, "DIAG", 32, 1),
+       MHI_CHANNEL_CONFIG_DL(5, "DIAG", 32, 1),
+       MHI_CHANNEL_CONFIG_UL(12, "MBIM", 32, 0),
+       MHI_CHANNEL_CONFIG_DL(13, "MBIM", 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(50, "NMEA", 32, 0),
+       MHI_CHANNEL_CONFIG_DL(51, "NMEA", 32, 0),
+       MHI_CHANNEL_CONFIG_HW_UL(100, "IP_HW0_MBIM", 128, 2),
+       MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3),
+};
+
 static struct mhi_event_config mhi_foxconn_sdx55_events[] = {
        MHI_EVENT_CONFIG_CTRL(0, 128),
        MHI_EVENT_CONFIG_DATA(1, 128),
@@ -509,6 +526,15 @@ static const struct mhi_controller_config modem_foxconn_sdx55_config = {
        .event_cfg = mhi_foxconn_sdx55_events,
 };
 
+static const struct mhi_controller_config modem_foxconn_sdx61_config = {
+       .max_channels = 128,
+       .timeout_ms = 20000,
+       .num_channels = ARRAY_SIZE(mhi_foxconn_sdx61_channels),
+       .ch_cfg = mhi_foxconn_sdx61_channels,
+       .num_events = ARRAY_SIZE(mhi_foxconn_sdx55_events),
+       .event_cfg = mhi_foxconn_sdx55_events,
+};
+
 static const struct mhi_controller_config modem_foxconn_sdx72_config = {
        .max_channels = 128,
        .timeout_ms = 20000,
@@ -618,6 +644,17 @@ static const struct mhi_pci_dev_info mhi_foxconn_dw5934e_info = {
        .sideband_wake = false,
 };
 
+static const struct mhi_pci_dev_info mhi_foxconn_t99w696_info = {
+       .name = "foxconn-t99w696",
+       .edl = "qcom/sdx61/foxconn/prog_firehose_lite.elf",
+       .edl_trigger = true,
+       .config = &modem_foxconn_sdx61_config,
+       .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
+       .dma_data_width = 32,
+       .mru_default = 32768,
+       .sideband_wake = false,
+};
+
 static const struct mhi_channel_config mhi_mv3x_channels[] = {
        MHI_CHANNEL_CONFIG_UL(0, "LOOPBACK", 64, 0),
        MHI_CHANNEL_CONFIG_DL(1, "LOOPBACK", 64, 0),
@@ -870,6 +907,21 @@ static const struct pci_device_id mhi_pci_id_table[] = {
        /* Telit FE990A */
        { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, 0x1c5d, 0x2015),
                .driver_data = (kernel_ulong_t) &mhi_telit_fe990a_info },
+       /* Foxconn T99W696.01, Lenovo Generic SKU */
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, PCI_VENDOR_ID_FOXCONN, 0xe142),
+               .driver_data = (kernel_ulong_t) &mhi_foxconn_t99w696_info },
+       /* Foxconn T99W696.02, Lenovo X1 Carbon SKU */
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, PCI_VENDOR_ID_FOXCONN, 0xe143),
+               .driver_data = (kernel_ulong_t) &mhi_foxconn_t99w696_info },
+       /* Foxconn T99W696.03, Lenovo X1 2in1 SKU */
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, PCI_VENDOR_ID_FOXCONN, 0xe144),
+               .driver_data = (kernel_ulong_t) &mhi_foxconn_t99w696_info },
+       /* Foxconn T99W696.04, Lenovo PRC SKU */
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, PCI_VENDOR_ID_FOXCONN, 0xe145),
+               .driver_data = (kernel_ulong_t) &mhi_foxconn_t99w696_info },
+       /* Foxconn T99W696.00, Foxconn SKU */
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, PCI_VENDOR_ID_FOXCONN, 0xe146),
+               .driver_data = (kernel_ulong_t) &mhi_foxconn_t99w696_info },
        { PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0308),
                .driver_data = (kernel_ulong_t) &mhi_qcom_sdx65_info },
        { PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0309),