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From: Biao Huang <biao.huang@mediatek.com>
To: Jose Abreu <joabreu@synopsys.com>, davem@davemloft.net
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
	yt.shen@mediatek.com, biao.huang@mediatek.com,
	jianguo.zhang@mediatek.com
Subject: [PATCH 2/4] net: stmmac: fix csr_clk can't be zero issue
Date: Mon, 29 Apr 2019 14:15:54 +0800	[thread overview]
Message-ID: <1556518556-32464-3-git-send-email-biao.huang@mediatek.com> (raw)
In-Reply-To: <1556518556-32464-1-git-send-email-biao.huang@mediatek.com>

The specific clk_csr value can be zero, and
stmmac_clk is necessary for MDC clock which can be set dynamically.
So, change the condition from plat->clk_csr to plat->stmmac_clk to
fix clk_csr can't be zero issue.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 818ad88..9e89b94 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4376,7 +4376,7 @@ int stmmac_dvr_probe(struct device *device,
 	 * set the MDC clock dynamically according to the csr actual
 	 * clock input.
 	 */
-	if (!priv->plat->clk_csr)
+	if (priv->plat->stmmac_clk)
 		stmmac_clk_csr_set(priv);
 	else
 		priv->clk_csr = priv->plat->clk_csr;
-- 
1.7.9.5

  parent reply	other threads:[~2019-04-29  6:15 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-29  6:15 [PATCH 0/4] fix some bugs in stmmac Biao Huang
2019-04-29  6:15 ` [PATCH 1/4] net: stmmac: update rx tail pointer register to fix rx dma hang issue Biao Huang
2019-04-29  8:51   ` Jose Abreu
2019-04-30  8:56     ` biao huang
2019-04-29  6:15 ` Biao Huang [this message]
2019-04-29  6:15 ` [PATCH 3/4] net: stmmac: write the modified value back to MTL_OPERATION_MODE Biao Huang
2019-04-29  6:15 ` [PATCH 4/4] net: stmmac: dwmac-mediatek: modify csr_clk value to fix mdio read/write fail Biao Huang

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