From: Slark Xiao slark_xiao@163.com

For default mechanism, product would use default MRU 3500 if they didn't define it. But for Foxconn SDX55, there is a known issue which MRU 3500 would lead to data connection lost. So we align it with Qualcomm default MRU settings.

Cc: stable@vger.kernel.org # v5.12+ Fixes: aac426562f56 ("bus: mhi: pci_generic: Introduce Foxconn T99W175 support") Signed-off-by: Slark Xiao slark_xiao@163.com Reviewed-by: Manivannan Sadhasivam mani@kernel.org Link: https://lore.kernel.org/r/20220119101213.5008-1-slark_xiao@163.com [mani: Added pci_generic prefix to subject and CCed stable] Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org --- drivers/bus/mhi/pci_generic.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index 3a258a677df8..74e8fc342cfd 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c @@ -366,6 +366,7 @@ static const struct mhi_pci_dev_info mhi_foxconn_sdx55_info = { .config = &modem_foxconn_sdx55_config, .bar_num = MHI_PCI_DEFAULT_BAR_NUM, .dma_data_width = 32, + .mru_default = 32768, .sideband_wake = false, };