linux-kernel - [PATCH v2] bus: mhi: host: pci

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Message-Id: <20250528092232.16111-1-slark_xiao@163.com>
Date: Wed, 28 May 2025 17:22:32 +0800
From: Slark Xiao <slark_xiao@....com>
To: manivannan.sadhasivam@...aro.org,
	johan+linaro@...nel.org,
	mhi@...ts.linux.dev
Cc: linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Slark Xiao <slark_xiao@....com>
Subject: [PATCH v2] bus: mhi: host: pci_generic: Add Foxconn T99W696

T99W696 is designed based on Qualcomm SDX61 chip which is a cost
down chip refer to previous SDX62/SDX65. Though we have a support
on SDX62/SDX65, we create a new channel config for SDX61 since
we add a NMEA channel support from this product.
For new products we are allowed to customize the subVID and
subPID only.

Signed-off-by: Slark Xiao <slark_xiao@....com>
---
v2: Correct the ch_cfg as sdx61 channels
---
 drivers/bus/mhi/host/pci_generic.c | 52 ++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index a4a62429c784..a90ab31c46a9 100644
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -490,6 +490,23 @@ 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),
@@ -506,6 +523,15 @@ 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,
@@ -615,6 +641,17 @@ 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),
@@ -863,6 +900,21 @@ 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),
-- 
2.25.1