On Wed, Apr 07, 2021 at 04:21:09PM +0200, Andrew Lunn wrote: > On Wed, Apr 07, 2021 at 10:15:37PM +0800, Wong Vee Khee wrote: > > From: Tan Tee Min <tee.min....@intel.com> > > > > The Synopsis MAC controller supports auxiliary snapshot feature that > > allows user to store a snapshot of the system time based on an external > > event. > > > > This patch add supports to the above mentioned feature. Users will be > > able to triggered capturing the time snapshot from user-space using > > application such as testptp or any other applications that uses the > > PTP_EXTTS_REQUEST ioctl request. > > You forgot to Cc: the PTP maintainer. >
Will Cc Richard Cochran on v2. > > @@ -159,6 +163,37 @@ static int stmmac_enable(struct ptp_clock_info *ptp, > > priv->systime_flags); > > spin_unlock_irqrestore(&priv->ptp_lock, flags); > > break; > > + case PTP_CLK_REQ_EXTTS: > > + priv->plat->ext_snapshot_en = on; > > + mutex_lock(&priv->aux_ts_lock); > > + acr_value = readl(ptpaddr + PTP_ACR); > > + acr_value &= ~PTP_ACR_MASK; > > + if (on) { > > + /* Enable External snapshot trigger */ > > + acr_value |= priv->plat->ext_snapshot_num; > > + acr_value |= PTP_ACR_ATSFC; > > + pr_info("Auxiliary Snapshot %d enabled.\n", > > + priv->plat->ext_snapshot_num >> > > + PTP_ACR_ATSEN_SHIFT); > > dev_dbg()? > > > + /* Enable Timestamp Interrupt */ > > + intr_value = readl(ioaddr + GMAC_INT_EN); > > + intr_value |= GMAC_INT_TSIE; > > + writel(intr_value, ioaddr + GMAC_INT_EN); > > + > > + } else { > > + pr_info("Auxiliary Snapshot %d disabled.\n", > > + priv->plat->ext_snapshot_num >> > > + PTP_ACR_ATSEN_SHIFT); > > dev_dbg()? > > Do you really want to spam the kernel log with this? > Thanks for the review. I will switch this to netdev_dbg().