linux-kernel - [v3, PATCH 3/4] net: stmmac: write the modified value back to MTL_OPERATION

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Message-ID: <1557805046-306-4-git-send-email-biao.huang@mediatek.com>
Date:   Tue, 14 May 2019 11:37:25 +0800
From:   Biao Huang <biao.huang@...iatek.com>
To:     Jose Abreu <joabreu@...opsys.com>
CC:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <netdev@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <yt.shen@...iatek.com>,
        <biao.huang@...iatek.com>, <jianguo.zhang@...iatek.comi>,
        <boon.leong.ong@...el.com>
Subject: [v3, PATCH 3/4] net: stmmac: write the modified value back to MTL_OPERATION_MODE

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.huang@...iatek.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