linux-kernel - [PATCH AUTOSEL 5.9 07/15] net: stmmac: increase the timeout for dma reset

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Date:   Sat, 19 Dec 2020 22:34:25 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Fugang Duan <fugang.duan@....com>,
        Joakim Zhang <qiangqing.zhang@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH AUTOSEL 5.9 07/15] net: stmmac: increase the timeout for dma reset

From: Fugang Duan <fugang.duan@....com>

[ Upstream commit 9d14edfdeabf37d8d8f045e63e5873712aadcd6b ]

Current timeout value is not enough for gmac5 dma reset
on imx8mp platform, increase the timeout range.

Signed-off-by: Fugang Duan <fugang.duan@....com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@....com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
index 6e30d7eb4983d..0b4ee2dbb691d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
@@ -22,7 +22,7 @@ int dwmac4_dma_reset(void __iomem *ioaddr)
 
 	return readl_poll_timeout(ioaddr + DMA_BUS_MODE, value,
 				 !(value & DMA_BUS_MODE_SFT_RESET),
-				 10000, 100000);
+				 10000, 1000000);
 }
 
 void dwmac4_set_rx_tail_ptr(void __iomem *ioaddr, u32 tail_ptr, u32 chan)
-- 
2.27.0