[v3, PATCH 3/4] net: stmmac: write the modified value back to MTL_OPERATION_MODE

[Biao Huang]

The value of MTL_OPERATION_MODE is modified, and should
be write back to the register.

Fixes: d0a9c9f9c6d0 ("net: stmmac: configure mtl rx and tx algorithms")
Signed-off-by: Biao Huang <biao.hu...@mediatek.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c 
b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 7e5d5db..b4bb562 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -192,6 +192,8 @@ static void dwmac4_prog_mtl_tx_algorithms(struct 
mac_device_info *hw,
        default:
                break;
        }
+
+       writel(value, ioaddr + MTL_OPERATION_MODE);
 }
 
 static void dwmac4_set_mtl_tx_queue_weight(struct mac_device_info *hw,
-- 
1.7.9.5