From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Jon Hunter <jonathanh@nvidia.com>,
Thierry Reding <treding@nvidia.com>,
"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
Andrew Lunn <andrew@lunn.ch>, Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Jakub Kicinski <kuba@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>
Subject: [PATCH net-next 2/2] net: stmmac: block PHY rx clock-stop over reset
Date: Wed, 05 Mar 2025 18:00:44 +0000 [thread overview]
Message-ID: <E1tpt2y-005UNH-QS@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <Z8iRM8Q9Sb-y3fR_@shell.armlinux.org.uk>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6924df893e42..037039a9a33b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3096,7 +3096,10 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv)
if (priv->extend_desc && (priv->mode == STMMAC_RING_MODE))
priv->plat->dma_cfg->atds = 1;
+ /* Note that the PHY clock must be running for reset to complete. */
+ phylink_rx_clk_stop_block(priv->phylink);
ret = stmmac_reset(priv, priv->ioaddr);
+ phylink_rx_clk_stop_unblock(priv->phylink);
if (ret) {
netdev_err(priv->dev, "Failed to reset the dma\n");
return ret;
--
2.30.2
prev parent reply other threads:[~2025-03-05 18:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-05 18:00 [PATCH net-next 0/2] net: stmmac: approach 2 to solve EEE LPI reset issues Russell King (Oracle)
2025-03-05 18:00 ` [PATCH net-next 1/2] net: phylink: add functions to block/unblock rx clock stop Russell King (Oracle)
2025-03-06 8:28 ` Maxime Chevallier
2025-03-05 18:00 ` Russell King (Oracle) [this message]
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