Revert "drivers: move eeprom_slave driver to tests directory"

This reverts commit cabbd916cf.

This is considered to be useful enough that it should be restored
as a stable Zephyr API.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>

CODEOWNERS

@@ -208,6 +208,7 @@
 /drivers/i2c/i2c_emul.c                   @sjg20
 /drivers/i2c/i2c_shell.c                  @nashif
 /drivers/i2c/Kconfig.i2c_emul             @sjg20
+/drivers/i2c/slave/*eeprom*               @henrikbrixandersen
 /drivers/i2s/*litex*                      @mateusz-holenko @kgugala @pgielda
 /drivers/ieee802154/                      @jukkar @tbursztyka
 /drivers/ieee802154/ieee802154_rf2xx*     @jukkar @tbursztyka @nandojve

doc/reference/overview.rst

@@ -142,6 +142,11 @@ current :ref:`stability level <api_lifecycle>`.
      - 1.14
      - 2.3
 
+   * - :ref:`i2c_eeprom_slave_api`
+     - Stable
+     - 1.13
+     - 1.13
+
    * - :ref:`i2c_api`
      - Stable
      - 1.0

doc/reference/peripherals/i2c_eeprom_slave.rst

@@ -0,0 +1,13 @@
+.. _i2c_eeprom_slave_api:
+
+I2C EEPROM Slave
+################
+
+Overview
+********
+
+API Reference
+**************
+
+.. doxygengroup:: i2c_eeprom_slave_api
+   :project: Zephyr

doc/reference/peripherals/index.rst

@@ -18,6 +18,7 @@ Peripherals
    gna.rst
    gpio.rst
    hwinfo.rst
+   i2c_eeprom_slave.rst
    i2c.rst
    ipm.rst
    kscan.rst

drivers/i2c/slave/CMakeLists.txt

@@ -1 +1,3 @@
 # SPDX-License-Identifier: Apache-2.0
+
+zephyr_sources_ifdef(CONFIG_I2C_EEPROM_SLAVE	eeprom_slave.c)

drivers/i2c/slave/Kconfig

@@ -6,11 +6,19 @@
 #
 # I2C options
 #
-config I2C_SLAVE
+menuconfig I2C_SLAVE
 	bool "I2C Slave Drivers"
 	help
 	  Enable I2C Slave Driver Configuration
 
 if I2C_SLAVE
 
+config I2C_SLAVE_INIT_PRIORITY
+	int "Init priority"
+	default 60
+	help
+	  I2C Slave device driver initialization priority.
+
+source "drivers/i2c/slave/Kconfig.eeprom"
+
 endif # I2C_SLAVE

drivers/i2c/slave/Kconfig.eeprom

@@ -0,0 +1,9 @@
+# I2C EEPROM Slave configuration options
+
+# Copyright (c) 2017 BayLibre, SAS
+# SPDX-License-Identifier: Apache-2.0
+
+config I2C_EEPROM_SLAVE
+	bool "I2C Slave EEPROM driver"
+	help
+	  Enable virtual I2C Slave EEPROM driver

drivers/i2c/slave/eeprom_slave.c

@@ -11,11 +11,11 @@
 #include <errno.h>
 #include <drivers/i2c.h>
 #include <string.h>
-#include "eeprom.h"
+#include <drivers/i2c/slave/eeprom.h>
 
 #define LOG_LEVEL CONFIG_I2C_LOG_LEVEL
 #include <logging/log.h>
-LOG_MODULE_REGISTER(eeprom_slave);
+LOG_MODULE_REGISTER(i2c_slave);
 
 struct i2c_eeprom_slave_data {
 	const struct device *i2c_controller;
@@ -225,8 +225,8 @@ static int i2c_eeprom_slave_init(const struct device *dev)
 			    &i2c_eeprom_slave_init,			\
 			    &i2c_eeprom_slave_##inst##_dev_data,	\
 			    &i2c_eeprom_slave_##inst##_cfg,		\
-			    APPLICATION,				\
-			    0,						\
+			    POST_KERNEL,				\
+			    CONFIG_I2C_SLAVE_INIT_PRIORITY,		\
 			    &api_funcs);
 
 DT_INST_FOREACH_STATUS_OKAY(I2C_EEPROM_INIT)

tests/drivers/i2c/i2c_slave_api/prj.conf

@@ -4,3 +4,5 @@ CONFIG_BOOT_BANNER=y
 CONFIG_ZTEST=y
 CONFIG_I2C=y
 CONFIG_I2C_SLAVE=y
+CONFIG_I2C_EEPROM_SLAVE=y
+CONFIG_I2C_VIRTUAL=y

tests/drivers/i2c/i2c_slave_api/src/main.c

@@ -18,7 +18,7 @@ LOG_MODULE_REGISTER(main);
 #include <sys/util.h>
 
 #include <drivers/i2c.h>
-#include "eeprom.h"
+#include <drivers/i2c/slave/eeprom.h>
 
 #include <ztest.h>