driver: gpio: mfxstm32l152: add driver for STM32L152 based MFX

Initial commit for a STM32L152 based GPIO expansion chip.
The mfxstm32l152 driver offers GPIO controller fonctions.

Signed-off-by: Alain Volmat <[email protected]>

Author: Alain Volmat

drivers/gpio/CMakeLists.txt

@@ -56,6 +56,7 @@ zephyr_library_sources_ifdef(CONFIG_GPIO_MCUX       gpio_mcux.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_MCUX_IGPIO gpio_mcux_igpio.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_MCUX_LPC   gpio_mcux_lpc.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_MCUX_RGPIO gpio_mcux_rgpio.c)
+zephyr_library_sources_ifdef(CONFIG_GPIO_MFXSTM32L152 gpio_mfxstm32l152.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_MMIO32     gpio_mmio32.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_NCT38XX    gpio_nct38xx.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_NCT38XX    gpio_nct38xx_port.c)

drivers/gpio/Kconfig

@@ -144,6 +144,7 @@ source "drivers/gpio/Kconfig.mcux_igpio"
 source "drivers/gpio/Kconfig.mcux_lpc"
 source "drivers/gpio/Kconfig.mcux_rgpio"
 source "drivers/gpio/Kconfig.mec5"
+source "drivers/gpio/Kconfig.mfxstm32l152"
 source "drivers/gpio/Kconfig.mmio32"
 source "drivers/gpio/Kconfig.nct38xx"
 source "drivers/gpio/Kconfig.neorv32"

drivers/gpio/Kconfig.mfxstm32l152

@@ -0,0 +1,19 @@
+# MFXSTM32L152 GPIO configuration options
+
+# Copyright (c) 2024 STMicroelectronics
+# SPDX-License-Identifier: Apache-2.0
+
+menuconfig GPIO_MFXSTM32L152
+	bool "MFXSTM32L152 I2C-based GPIO chip"
+	default y
+	depends on DT_HAS_ST_MFXSTM32L152_ENABLED
+	select I2C
+	help
+	  Enable driver for MFXSTM32L152 I2C-based GPIO chip.
+
+config GPIO_MFXSTM32L152_INIT_PRIORITY
+	int "Init priority"
+	default 70
+	depends on GPIO_MFXSTM32L152
+	help
+	  Device driver initialization priority.