drivers: lin: initialize support for RA SCI_B LIN

Initial support for Renesas RA SCI_B LIN

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

Author: thenguyenyf

drivers/lin/CMakeLists.txt

@@ -14,4 +14,5 @@ zephyr_library_sources_ifdef(CONFIG_USERSPACE lin_handlers.c)
 zephyr_library_sources_ifdef(CONFIG_LIN_SKELETON lin_skeleton.c)
 # zephyr-keep-sorted-stop
 
+add_subdirectory(renesas/ra)
 add_subdirectory(transceiver)

drivers/lin/Kconfig

@@ -34,7 +34,10 @@ config LIN_AUTO_SYNCHRONIZATION
 	  Enable automatic synchronization of LIN frames. If disabled, the driver will not handle
 	  frame synchronization.
 
+# zephyr-keep-sorted-start
 source "drivers/lin/Kconfig.skeleton"
+source "drivers/lin/renesas/ra/Kconfig.renesas_ra"
+# zephyr-keep-sorted-stop
 
 source "drivers/lin/transceiver/Kconfig"
 

drivers/lin/renesas/ra/CMakeLists.txt

@@ -0,0 +1,7 @@
+# Copyright (c) 2025 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+# zephyr-keep-sorted-start
+zephyr_library_sources_ifdef(CONFIG_LIN_RENESAS_RA        lin_renesas_ra.c)
+zephyr_library_sources_ifdef(CONFIG_LIN_RENESAS_RA_SCI_B  lin_renesas_ra_sci_b.c)
+# zephyr-keep-sorted-stop

drivers/lin/renesas/ra/Kconfig.renesas_ra

@@ -0,0 +1,17 @@
+# Copyright (c) 2025 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+config LIN_RENESAS_RA
+	bool
+	help
+	  Enable Renesas RA LIN driver support
+
+config LIN_RENESAS_RA_SCI_B
+	bool "Renesas RA LIN SCI_B"
+	default y
+	depends on DT_HAS_RENESAS_RA_LIN_SCI_B_ENABLED
+	select LIN_RENESAS_RA
+	select USE_RA_FSP_SCI_B_LIN
+	select PINCTRL
+	help
+	  Enable Renesas RA LIN SCI_B driver