[PATCH iwl-next v3 1/6] ice: dpll: Add the MUX tables to the documentation

Add the tables documenting the DPLL pin MUX states and behavior
to the driver.

Signed-off-by: Sergey Temerkhanov <[email protected]>
---
 drivers/net/ethernet/intel/ice/ice_dpll.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_dpll.c b/drivers/net/ethernet/intel/ice/ice_dpll.c
index 382fbe98f2b0..9b3584fa43a9 100644
--- a/drivers/net/ethernet/intel/ice/ice_dpll.c
+++ b/drivers/net/ethernet/intel/ice/ice_dpll.c
@@ -92,6 +92,29 @@ static const struct dpll_pin_frequency ice_esync_range[] = {
 	DPLL_PIN_FREQUENCY_RANGE(0, DPLL_PIN_FREQUENCY_1_HZ),
 };
 
+/*
+ * SMA1/U.FL1 MUX table
+ *+----------------+-------------+------------+
+ *|                | SMA1_DIR_EN | SMA1_TX_EN |
+ *+----------------+-------------+------------+
+ *|SMA1 RX Enable  |       0     |      x     |
+ *|u.FL1 TX Enable |       0     |      0     |
+ *|SMA1 TX Enable  |       1     |      0     |
+ *|All Disable     |       1     |      1     |
+ *+----------------+-------------+------------+
+ *
+ * SMA2/U.FL2 MUX table
+ *+----------------+-------------+------------+------------+
+ *|                | SMA2_DIR_EN | SMA2_TX_EN | UFL2_RX_EN |
+ *+----------------+-------------+------------+------------+
+ *|SMA2 RX Enable  |       0     |      x     |     x      |
+ *|u.FL2 RX Enable |       1     |      x     |     0      |
+ *|SMA2 TX Enable  |       1     |      0     |     x      |
+ *|SMA2 Disable    |       1     |      1     |     x      |
+ *|All Disable     |       1     |      1     |     1      |
+ *+----------------+-------------+------------+------------+
+ */
+
 /**
  * ice_dpll_is_sw_pin - check if given pin shall be controlled by SW
  * @pf: private board structure
-- 
2.53.0