Merge branch 'x86-extable-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / drivers / ptp / Kconfig

diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig
index cd9bc3b129bc7fde6e07066ad28925fec4c6304b..ffdf712f9a67c7e725b790ff3fed54fc43985901 100644 (file)
--- a/drivers/ptp/Kconfig
+++ b/drivers/ptp/Kconfig
@@ -70,7 +70,7 @@ config DP83640_PHY
          using the SO_TIMESTAMPING API.
 
          In order for this to work, your MAC driver must also
-         implement the skb_tx_timetamp() function.
+         implement the skb_tx_timestamp() function.
 
 config PTP_1588_CLOCK_PCH
        tristate "Intel PCH EG20T as PTP clock"
@@ -78,9 +78,13 @@ config PTP_1588_CLOCK_PCH
        depends on PCH_GBE
        help
          This driver adds support for using the PCH EG20T as a PTP
-         clock. This clock is only useful if your PTP programs are
-         getting hardware time stamps on the PTP Ethernet packets
-         using the SO_TIMESTAMPING API.
+         clock. The hardware supports time stamping of PTP packets
+         when using the end-to-end delay (E2E) mechansim. The peer
+         delay mechansim (P2P) is not supported.
+
+         This clock is only useful if your PTP programs are getting
+         hardware time stamps on the PTP Ethernet packets using the
+         SO_TIMESTAMPING API.
 
          To compile this driver as a module, choose M here: the module
          will be called ptp_pch.