[PATCH 5.15 040/913] bus: mhi: pci_generic: Add mru_default for Quectel EM1xx series

[Greg Kroah-Hartman]

From: Yonglin Tan <yonglin.tan@xxxxxxxxxxx>

commit 2413ffbf19a95cfcd7adf63135c5a9343a66d0a2 upstream.

For default mechanism, the driver uses default MRU 3500 if mru_default
is not initialized. The Qualcomm configured the MRU size to 32768 in the
WWAN device FW. So, we align the driver setting with Qualcomm FW setting.

Link: https://lore.kernel.org/r/MEYP282MB2374EE345DADDB591AFDA6AFFD2E9@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: ac4bf60bbaa0 ("bus: mhi: pci_generic: Introduce quectel EM1XXGR-L support")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
Signed-off-by: Yonglin Tan <yonglin.tan@xxxxxxxxxxx>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220301160308.107452-2-manivannan.sadhasivam@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/bus/mhi/pci_generic.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/bus/mhi/pci_generic.c
+++ b/drivers/bus/mhi/pci_generic.c
@@ -327,6 +327,7 @@ static const struct mhi_pci_dev_info mhi
 	.config = &modem_quectel_em1xx_config,
 	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
 	.dma_data_width = 32,
+	.mru_default = 32768,
 	.sideband_wake = true,
 };