drivers: mfd: add MAX22017 DAC/GPIO MFD

The MAX22017 DAC provides two 16 Channel Analog outputs and 6 GPIOs.

Signed-off-by: Guillaume Ranquet <[email protected]>

Author: granquet

drivers/mfd/CMakeLists.txt

@@ -21,3 +21,4 @@ zephyr_library_sources_ifdef(CONFIG_MFD_ITE_IT8801 mfd_ite_it8801.c)
 zephyr_library_sources_ifdef(CONFIG_MFD_ITE_IT8801_ALTCTRL mfd_it8801_altctrl.c)
 zephyr_library_sources_ifdef(CONFIG_MFD_AW9523B mfd_aw9523b.c)
 zephyr_library_sources_ifdef(CONFIG_MFD_DS3231 mfd_ds3231.c)
+zephyr_library_sources_ifdef(CONFIG_MFD_MAX22017 mfd_max22017.c)

drivers/mfd/Kconfig

@@ -25,6 +25,7 @@ source "drivers/mfd/Kconfig.aw9523b"
 source "drivers/mfd/Kconfig.bd8lb600fs"
 source "drivers/mfd/Kconfig.ds3231"
 source "drivers/mfd/Kconfig.max20335"
+source "drivers/mfd/Kconfig.max22017"
 source "drivers/mfd/Kconfig.max31790"
 source "drivers/mfd/Kconfig.nct38xx"
 source "drivers/mfd/Kconfig.npm1300"

drivers/mfd/Kconfig.max22017

@@ -0,0 +1,12 @@
+# Copyright (c) 2024 Analog Devices Inc.
+# Copyright (c) 2024 BayLibre SAS
+# SPDX-License-Identifier: Apache-2.0
+
+config MFD_MAX22017
+	bool "Analog Devices MAX22017 DAC/GPIO chip"
+	default y
+	depends on SPI
+	select CRC
+	depends on DT_HAS_ADI_MAX22017_ENABLED
+	help
+	  Enable the driver for the Analog Devices MAX22017 DAC/GPIO chip