From: Yochai Hagvi <yochai.ha...@intel.com>
Add a helper function to determine whether a given pin of DPLL is capable for
refsync configuration.
Signed-off-by: Yochai Hagvi <yochai.ha...@intel.com>
Signed-off-by: Ian Stokes <ian.sto...@intel.com>
---
drivers/net/ice/base/ice_ptp_hw.c | 16 ++++++++++++++++
drivers/net/ice/base/ice_ptp_hw.h | 1 +
2 files changed, 17 insertions(+)
diff --git a/drivers/net/ice/base/ice_ptp_hw.c
b/drivers/net/ice/base/ice_ptp_hw.c
index 3d4e02a2f6..69bef926bd 100644
--- a/drivers/net/ice/base/ice_ptp_hw.c
+++ b/drivers/net/ice/base/ice_ptp_hw.c
@@ -5804,3 +5804,19 @@ int ice_ptp_init_phc(struct ice_hw *hw)
return status;
}
+
+/**
+ * refsync_pin_id_valid
+ * @hw: pointer to the HW struct
+ * @id: pin index
+ *
+ * Checks whether DPLL's input pin can be configured to ref-sync pairing mode.
+ */
+bool refsync_pin_id_valid(struct ice_hw *hw, u8 id)
+{
+ /* refsync is allowed only on pins 1 or 5 for E810T */
+ if (ice_is_e810t(hw) && id != 1 && id != 5)
+ return false;
+
+ return true;
+}
diff --git a/drivers/net/ice/base/ice_ptp_hw.h
b/drivers/net/ice/base/ice_ptp_hw.h
index ed359db6ee..935c3f9648 100644
--- a/drivers/net/ice/base/ice_ptp_hw.h
+++ b/drivers/net/ice/base/ice_ptp_hw.h
@@ -142,6 +142,7 @@ ice_read_phy_tstamp(struct ice_hw *hw, u8 block, u8 idx,
u64 *tstamp);
int
ice_clear_phy_tstamp(struct ice_hw *hw, u8 block, u8 idx);
int ice_ptp_init_phc(struct ice_hw *hw);
+bool refsync_pin_id_valid(struct ice_hw *hw, u8 id);
/* E822 family functions */
int
--
2.43.0
