soc: dts: pinctrl: support the configurations which apply for LVDS pads

support the configurations which apply for LVDS pads
+ termination resistor
+ current reference control
+ rx current boost

Signed-off-by: Tu Nguyen Van <[email protected]>

Author: tunguyen4585

dts/bindings/pinctrl/nxp,s32ze-pinctrl.yaml

@@ -1,4 +1,4 @@
-# Copyright 2022 NXP
+# Copyright 2022, 2024 NXP
 # SPDX-License-Identifier: Apache-2.0
 
 description: |
@@ -57,13 +57,13 @@ description: |
     - internal pull not enabled
     - open drain disabled
     - slew rate 4 (see description in property below).
+    - termination resistor disabled (affect LVDS pads only).
+    - current reference control disabled (affect LVDS pads only).
+    - Rx current boost disabled  (affect LVDS pads only).
 
-  Additionally, Safe Mode is always disabled (reset value) and configuration that
-  only applies to LVDS pads, which are not supported, default to reset values:
-    - termination resistor disabled
-    - receiver single ended
-    - current reference control disabled
-    - Rx current boost disabled.
+  Additionally:
+  - Safe Mode is always kept as reset value (disabled).
+  - Receiver Select is always kept as reset value (enables the differential vref based receiver).
 
 compatible: "nxp,s32ze-pinctrl"
 
@@ -116,3 +116,26 @@ child-binding:
             5: FMAX_33 = 50 MHz
             6: FMAX_33 = 50 MHz
             7: FMAX_33 = 1 MHz
+
+      nxp,current-reference-control:
+        type: boolean
+        description: |
+          This configuration applies the current reference control to
+          the associated pin. It is only applicable to LVDS pads and
+          has no effect on other types of pads
+
+      nxp,termination-resistor:
+        type: boolean
+        description: |
+          This configuration applies the termination resistor to
+          the associated pin. It is only applicable to LVDS pads and
+          has no effect on other types of pads
+
+      nxp,rx-current-boost:
+        type: boolean
+        description: |
+          RX LVDS Current Boost
+          Boosts RX IO current. It is only applicable to LVDS pads and
+          has no effect on other types of pads
+          0: Current reference is 200 μA; supports data rate up to 320 Mbaud
+          1: Current reference is 1 mA; supports data rate up to 420 Mbaud

soc/nxp/s32/s32ze/pinctrl_soc.h

@@ -53,7 +53,10 @@
 		       SIUL2_MSCR_PUS(DT_PROP(group, bias_pull_up)) |                              \
 		       SIUL2_MSCR_SRE(DT_PROP(group, slew_rate)) |                                 \
 		       SIUL2_MSCR_ODE(DT_PROP(group, drive_open_drain) &&                          \
-				      DT_PROP(group, output_enable))                               \
+				      DT_PROP(group, output_enable)) |                             \
+		       SIUL2_MSCR_TRC(DT_PROP(group, nxp_termination_resistor)) |                  \
+		       SIUL2_MSCR_CREF(DT_PROP(group, nxp_current_reference_control)) |            \
+		       SIUL2_MSCR_RXCB(DT_PROP(group, nxp_rx_current_boost))                       \
 	},                                                                                         \
 	.imcr = {                                                                                  \
 		.inst = NXP_S32_PINMUX_GET_IMCR_SIUL2_IDX(value),                                  \