drivers: gpio: Add MAX14906 industrial input/output

MAX14906 in 4 channel I/O with advanced diagnostic.
In SPI communication diagnostic status transmitted on every
READ/WRITE which includes generic status of chip.
Configuration both on global level and on per channel bases.
Diagnostics includes :
 * Thermal overload
 * current limit
 * open wire detection
 * short to VDD
 * Above VDD
 * Safe DEmagnitization fault
 * VDD warning
 * VDD low
 * SPI/CRC Error
 * WDog Error
 * Loss GND

Add app.overlay for MAX14906 driver.

Tested with adopted basic/button and basic/blinky sample.

Signed-off-by: Stoyan Bogdanov <[email protected]>

Author: bogdanovs

drivers/gpio/CMakeLists.txt

@@ -40,6 +40,7 @@ zephyr_library_sources_ifdef(CONFIG_GPIO_KSCAN_ITE_IT8XXX2 gpio_kscan_ite_it8xxx
 zephyr_library_sources_ifdef(CONFIG_GPIO_LITEX      gpio_litex.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_LMP90XXX   gpio_lmp90xxx.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_LPC11U6X   gpio_lpc11u6x.c)
+zephyr_library_sources_ifdef(CONFIG_GPIO_MAX14906   gpio_max14906.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_MAX32      gpio_max32.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_MCHP_MSS       gpio_mchp_mss.c)
 zephyr_library_sources_ifdef(CONFIG_GPIO_MCP230XX   gpio_mcp230xx.c)

drivers/gpio/Kconfig

@@ -131,6 +131,7 @@ source "drivers/gpio/Kconfig.it8xxx2"
 source "drivers/gpio/Kconfig.litex"
 source "drivers/gpio/Kconfig.lmp90xxx"
 source "drivers/gpio/Kconfig.lpc11u6x"
+source "drivers/gpio/Kconfig.max14906"
 source "drivers/gpio/Kconfig.max32"
 source "drivers/gpio/Kconfig.mchp_mss"
 source "drivers/gpio/Kconfig.mcp23xxx"

drivers/gpio/Kconfig.max14906

@@ -0,0 +1,20 @@
+# Copyright (c) 2024 Analog Devices Inc.
+# Copyright (c) 2024 BayLibre SAS
+# SPDX-License-Identifier: Apache-2.0
+
+# MAX14906 GPIO configuration options
+
+menuconfig GPIO_MAX14906
+	bool "MAX14906 GPIO driver"
+	default y
+	depends on DT_HAS_ADI_MAX14906_GPIO_ENABLED && SPI
+	help
+	  Enabe MAX14906 quad industrial digital
+	  input/output with diagnostics
+
+config GPIO_MAX14906_INIT_PRIORITY
+	int "Driver init priority"
+	default 99
+	depends on GPIO_MAX14906
+	help
+	  Device driver initialization priority.