[Intel-wired-lan] [PATCH net v1] i40e: allow controlling PTP external clock features

[Mateusz Palczewski <mateusz.palczewski@intel.com>]

From: Piotr Kwapulinski <piotr.kwapulinski@intel.com>

Provide information what functions are supported by PTP pins and allow
controlling them.
Implemented in i40e_ptp_verify() and i40e_pps_configure().
Previously it was not possible to control PTP external clock features.

Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ptp.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index 26f583f..6182d42 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -241,7 +241,15 @@ static void i40_ptp_reset_timing_events(struct i40e_pf *pf)
 static int i40e_ptp_verify(struct ptp_clock_info *ptp, unsigned int pin,
 			   enum ptp_pin_function func, unsigned int chan)
 {
-	/* TODO: implement pin checking */
+	switch (func) {
+	case PTP_PF_NONE:
+	case PTP_PF_EXTTS:
+	case PTP_PF_PEROUT:
+		break;
+	case PTP_PF_PHYSYNC:
+		return -EOPNOTSUPP;
+	}
+
 	return 0;
 }
 
@@ -486,7 +494,11 @@ static int i40e_pps_configure(struct ptp_clock_info *ptp,
 			      struct ptp_clock_request *rq,
 			      int on)
 {
-	/* TODO: implement PPS events */
+	struct i40e_pf *pf = container_of(ptp, struct i40e_pf, ptp_caps);
+
+	if (!!on)
+		i40e_ptp_set_1pps_signal_hw(pf);
+
 	return 0;
 }
 
-- 
2.17.1

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