From: Slark Xiao <slark_xiao@xxxxxxx>
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@xxxxxxxxxxxxxxx # v5.12+
Fixes: aac426562f56 ("bus: mhi: pci_generic: Introduce Foxconn T99W175 support")
Signed-off-by: Slark Xiao <slark_xiao@xxxxxxx>
Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220119101213.5008-1-slark_xiao@xxxxxxx
[mani: Added pci_generic prefix to subject and CCed stable]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
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,
};
--
2.25.1
