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authorRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2025-09-11 12:10:18 +0100
committerJakub Kicinski <kuba@kernel.org>2025-09-14 12:01:19 -0700
commit84b994ac4e4ea60b7752372c581796b95fc88656 (patch)
treec260f8a660d74ab776c9eaf978c6398180b45255
parentb09f58ddc6ca8ae09e3df9ca485d92cc504b238f (diff)
net: stmmac: add stmmac_setup_ptp()
Add a function to setup PTP, which will enable the clock, initialise the timestamping, and register with the PTP clock subsystem. Call this when we want to register the PTP clock in stmmac_hw_setup(), otherwise just call the Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c28
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 7cbac3ac2a9d..ea2d3e555fe8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -820,6 +820,20 @@ static int stmmac_init_timestamping(struct stmmac_priv *priv)
return 0;
}
+static void stmmac_setup_ptp(struct stmmac_priv *priv)
+{
+ int ret;
+
+ ret = clk_prepare_enable(priv->plat->clk_ptp_ref);
+ if (ret < 0)
+ netdev_warn(priv->dev,
+ "failed to enable PTP reference clock: %pe\n",
+ ERR_PTR(ret));
+
+ if (stmmac_init_timestamping(priv) == 0)
+ stmmac_ptp_register(priv);
+}
+
static void stmmac_release_ptp(struct stmmac_priv *priv)
{
stmmac_ptp_unregister(priv);
@@ -3494,16 +3508,10 @@ static int stmmac_hw_setup(struct net_device *dev, bool ptp_register)
stmmac_mmc_setup(priv);
- if (ptp_register) {
- ret = clk_prepare_enable(priv->plat->clk_ptp_ref);
- if (ret < 0)
- netdev_warn(priv->dev,
- "failed to enable PTP reference clock: %pe\n",
- ERR_PTR(ret));
- }
-
- if (stmmac_init_timestamping(priv) == 0 && ptp_register)
- stmmac_ptp_register(priv);
+ if (ptp_register)
+ stmmac_setup_ptp(priv);
+ else
+ stmmac_init_timestamping(priv);
if (priv->use_riwt) {
u32 queue;