Thread (17 messages) flat view 17 messages, 4 authors, 2025-09-10
STALE347d

[PATCH net-next 02/11] net: stmmac: disable PTP clock after unregistering PTP

From: Russell King (Oracle) <hidden>
Date: 2025-09-09 16:47:39
Also in: bpf, linux-arm-kernel
Subsystem: networking drivers, stmmac ethernet driver, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds

Follow the principle of unpublish from userspace and then teardown
resources.

Disable the PTP clock only after unregistering with the PTP subsystem,
which ensures that we only stop the clock that ticks the timesource
after we have removed the PTP device.

Signed-off-by: Russell King (Oracle) <redacted>
---
 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 419cb49ee5a2..5d76cf7957ab 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -817,8 +817,8 @@ static int stmmac_init_ptp(struct stmmac_priv *priv)
 
 static void stmmac_release_ptp(struct stmmac_priv *priv)
 {
-	clk_disable_unprepare(priv->plat->clk_ptp_ref);
 	stmmac_ptp_unregister(priv);
+	clk_disable_unprepare(priv->plat->clk_ptp_ref);
 }
 
 /**
-- 
2.47.3
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