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 RFC net-next 3/3] net: stmmac: block PHY rx clock-stop over reset
Date: Tue, 04 Mar 2025 10:53:31 +0000 [thread overview]
Message-ID: <E1tpPtz-005Soh-EG@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <Z8bbnSG67rqTj0pH@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 aec230353ac4..21026ea7541c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3097,7 +3097,10 @@ 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:[~2025-03-04 12:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-04 10:53 [PATCH RFC net-next 0/3] net: stmmac: approach 2 to solve EEE LPI reset issues Russell King (Oracle)
2025-03-04 10:53 ` [PATCH RFC net-next 1/3] net: phylink: add config of PHY receive clock-stop in phylink_resume() Russell King (Oracle)
2025-03-04 10:53 ` [PATCH RFC net-next 2/3] net: phylink: add functions to block/unblock rx clock stop Russell King (Oracle)
2025-03-04 10:53 ` Russell King (Oracle) [this message]
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