netdev - [PATCH AUTOSEL 5.9 17/33] net: stmmac: dwmac

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Message-Id: <20201125153550.810101-17-sashal@kernel.org>
Date:   Wed, 25 Nov 2020 10:35:34 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Jisheng Zhang <Jisheng.Zhang@...aptics.com>,
        Jakub Kicinski <kuba@...nel.org>,
        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 17/33] net: stmmac: dwmac_lib: enlarge dma reset timeout

From: Jisheng Zhang <Jisheng.Zhang@...aptics.com>

[ Upstream commit 56311a315da7ebc668dbcc2f1c99689cc10796c4 ]

If the phy enables power saving technology, the dwmac's software reset
needs more time to complete, enlarge dma reset timeout to 200000us.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@...aptics.com>
Link: https://lore.kernel.org/r/20201113090902.5c7aab1a@xhacker.debian
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
index cb87d31a99dfb..57a53a600aa55 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
@@ -23,7 +23,7 @@ int dwmac_dma_reset(void __iomem *ioaddr)
 
 	return readl_poll_timeout(ioaddr + DMA_BUS_MODE, value,
 				 !(value & DMA_BUS_MODE_SFT_RESET),
-				 10000, 100000);
+				 10000, 200000);
 }
 
 /* CSR1 enables the transmit DMA to check for new descriptor */
-- 
2.27.0