bus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better...

Add MHI controller config for EM929x. It uses the same configuration
as EM919x. Also set the MRU to 32768 to improve downlink throughput.

02:00.0 Unassigned class [ff00]: Qualcomm Technologies, Inc Device 0308
	Subsystem: Device 18d7:0301

Signed-off-by: Adam Xue <zxue@semtech.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250528175943.12739-1-zxue@semtech.com

diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 5c01c23d0bcfedd23f975e99845d5fa88940ccde..84d1e830b1da25049013e9b37a0178ca9d547edb 100644 (file)
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -698,6 +698,7 @@ static const struct mhi_pci_dev_info mhi_sierra_em919x_info = {
        .config = &modem_sierra_em919x_config,
        .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
        .dma_data_width = 32,
+       .mru_default = 32768,
        .sideband_wake = false,
 };
 
@@ -855,6 +856,9 @@ static const struct pci_device_id mhi_pci_id_table[] = {
        /* EM919x (sdx55), use the same vid:pid as qcom-sdx55m */
        { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0306, 0x18d7, 0x0200),
                .driver_data = (kernel_ulong_t) &mhi_sierra_em919x_info },
+       /* EM929x (sdx65), use the same configuration as EM919x */
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0308, 0x18d7, 0x0301),
+               .driver_data = (kernel_ulong_t) &mhi_sierra_em919x_info },
        /* Telit FN980 hardware revision v1 */
        { PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0306, 0x1C5D, 0x2000),
                .driver_data = (kernel_ulong_t) &mhi_telit_fn980_hw_v1_info },