Disabling only the link event irq is not enough to disable the interrupts. PTP will still be able to generate interrupts.
The interrupts are organised in a tree on the C45 TJA11XX PHYs. To completely disable the interrupts, they are disable from the top of the interrupt tree.
Fixes: 514def5dd339 ("phy: nxp-c45-tja11xx: add timestamping support") CC: stable@vger.kernel.org # 5.15+ Signed-off-by: Radu Pirea (OSS) radu-nicolae.pirea@oss.nxp.com --- drivers/net/phy/nxp-c45-tja11xx.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/drivers/net/phy/nxp-c45-tja11xx.c b/drivers/net/phy/nxp-c45-tja11xx.c index 029875a59ff8..ce718a5865a4 100644 --- a/drivers/net/phy/nxp-c45-tja11xx.c +++ b/drivers/net/phy/nxp-c45-tja11xx.c @@ -31,6 +31,10 @@ #define DEVICE_CONTROL_CONFIG_GLOBAL_EN BIT(14) #define DEVICE_CONTROL_CONFIG_ALL_EN BIT(13)
+#define VEND1_PORT_IRQ_ENABLES 0x0072 +#define PORT1_IRQ BIT(1) +#define GLOBAL_IRQ BIT(0) + #define VEND1_PHY_IRQ_ACK 0x80A0 #define VEND1_PHY_IRQ_EN 0x80A1 #define VEND1_PHY_IRQ_STATUS 0x80A2 @@ -235,7 +239,7 @@ struct nxp_c45_phy_stats { u16 mask; };
-static bool nxp_c45_poll_txts(struct phy_device *phydev) +static bool nxp_c45_poll(struct phy_device *phydev) { return phydev->irq <= 0; } @@ -448,7 +452,7 @@ static void nxp_c45_process_txts(struct nxp_c45_phy *priv, static long nxp_c45_do_aux_work(struct ptp_clock_info *ptp) { struct nxp_c45_phy *priv = container_of(ptp, struct nxp_c45_phy, caps); - bool poll_txts = nxp_c45_poll_txts(priv->phydev); + bool poll_txts = nxp_c45_poll(priv->phydev); struct skb_shared_hwtstamps *shhwtstamps_rx; struct ptp_clock_event event; struct nxp_c45_hwts hwts; @@ -699,7 +703,7 @@ static void nxp_c45_txtstamp(struct mii_timestamper *mii_ts, NXP_C45_SKB_CB(skb)->header = ptp_parse_header(skb, type); skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; skb_queue_tail(&priv->tx_queue, skb); - if (nxp_c45_poll_txts(priv->phydev)) + if (nxp_c45_poll(priv->phydev)) ptp_schedule_worker(priv->ptp_clock, 0); break; case HWTSTAMP_TX_OFF: @@ -772,7 +776,7 @@ static int nxp_c45_hwtstamp(struct mii_timestamper *mii_ts, PORT_PTP_CONTROL_BYPASS); }
- if (nxp_c45_poll_txts(priv->phydev)) + if (nxp_c45_poll(priv->phydev)) goto nxp_c45_no_ptp_irq;
if (priv->hwts_tx) @@ -892,10 +896,12 @@ static int nxp_c45_config_intr(struct phy_device *phydev) { if (phydev->interrupts == PHY_INTERRUPT_ENABLED) return phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, - VEND1_PHY_IRQ_EN, PHY_IRQ_LINK_EVENT); + VEND1_PORT_IRQ_ENABLES, + PORT1_IRQ | GLOBAL_IRQ); else return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, - VEND1_PHY_IRQ_EN, PHY_IRQ_LINK_EVENT); + VEND1_PORT_IRQ_ENABLES, + PORT1_IRQ | GLOBAL_IRQ); }
static irqreturn_t nxp_c45_handle_interrupt(struct phy_device *phydev) @@ -1290,6 +1296,10 @@ static int nxp_c45_config_init(struct phy_device *phydev) phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, VEND1_PORT_FUNC_ENABLES, PTP_ENABLE);
+ if (!nxp_c45_poll(phydev)) + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, + VEND1_PHY_IRQ_EN, PHY_IRQ_LINK_EVENT); + return nxp_c45_start_op(phydev); }