drivers: i2c: added wch i2c driver

added i2c driver for wch platforms

Signed-off-by: Andrei-Edward Popa <andrei.popa105@yahoo.com>

Author: andrei-edward-popa

drivers/i2c/CMakeLists.txt

@@ -76,6 +76,7 @@ zephyr_library_sources_ifdef(CONFIG_I2C_STM32_V2
 zephyr_library_sources_ifdef(CONFIG_I2C_SY1XX		i2c_sy1xx.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_TCA954X		i2c_tca954x.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_TELINK_B91	i2c_b91.c)
+zephyr_library_sources_ifdef(CONFIG_I2C_WCH		i2c_wch.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_XEC		i2c_mchp_xec.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_XEC_V2		i2c_mchp_xec_v2.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_XILINX_AXI	i2c_xilinx_axi.c)

drivers/i2c/Kconfig

@@ -156,6 +156,7 @@ source "drivers/i2c/Kconfig.stm32"
 source "drivers/i2c/Kconfig.sy1xx"
 source "drivers/i2c/Kconfig.tca954x"
 source "drivers/i2c/Kconfig.test"
+source "drivers/i2c/Kconfig.wch"
 source "drivers/i2c/Kconfig.xec"
 source "drivers/i2c/Kconfig.xilinx_axi"
 # zephyr-keep-sorted-stop

drivers/i2c/Kconfig.wch

@@ -0,0 +1,15 @@
+# Copyright (c) 2025 Andrei-Edward Popa
+# SPDX-License-Identifier: Apache-2.0
+
+config I2C_WCH
+	bool "WCH I2C driver"
+	default y
+	depends on DT_HAS_WCH_I2C_ENABLED
+	select PINCTRL
+	help
+	  Enable I2C support on WCH platforms
+
+config I2C_WCH_XFER_TIMEOUT_MS
+	int "Set the transfer timeout in milliseconds"
+	depends on I2C_WCH
+	default 500