i2c/chips: Move max6875 to drivers/misc/eeprom

This driver only reads the user EEPROM of that chip, so we can move it
to the eeprom-directory in order to further clean up (and later remove)
drivers/i2c/chips.

The Kconfig text was updated to match the current functionality,
dropping the meanwhile obsoleted parts.

Defconfigs have been adapted.

Signed-off-by: Wolfram Sang <[e-mail]>
Acked-by: Ben Gardner <[e-mail]>
Signed-off-by: Jean Delvare <[e-mail]>

arch/mips/configs/bigsur_defconfig

···
 CONFIG_SENSORS_PCF8574=y
 # CONFIG_PCF8575 is not set
 CONFIG_SENSORS_PCF8591=y
-CONFIG_SENSORS_MAX6875=y
+CONFIG_EEPROM_MAX6875=y
 # CONFIG_SENSORS_TSL2550 is not set
 CONFIG_I2C_DEBUG_CORE=y
 CONFIG_I2C_DEBUG_ALGO=y

arch/mips/configs/mtx1_defconfig

···
 CONFIG_SENSORS_PCF8574=m
 CONFIG_SENSORS_PCA9539=m
 CONFIG_SENSORS_PCF8591=m
-CONFIG_SENSORS_MAX6875=m
+CONFIG_EEPROM_MAX6875=m
 # CONFIG_SENSORS_TSL2550 is not set
 # CONFIG_I2C_DEBUG_CORE is not set
 # CONFIG_I2C_DEBUG_ALGO is not set

arch/powerpc/configs/ppc6xx_defconfig

···
 CONFIG_SENSORS_PCA9539=m
 CONFIG_SENSORS_PCF8591=m
 # CONFIG_TPS65010 is not set
-CONFIG_SENSORS_MAX6875=m
+CONFIG_EEPROM_MAX6875=m
 CONFIG_SENSORS_TSL2550=m
 CONFIG_MCU_MPC8349EMITX=m
 # CONFIG_I2C_DEBUG_CORE is not set

drivers/i2c/chips/Kconfig

···
 	  This driver is deprecated and will be dropped soon. Use
 	  drivers/gpio/pca953x.c instead.
 
-config SENSORS_MAX6875
-	tristate "Maxim MAX6875 Power supply supervisor"
-	depends on EXPERIMENTAL
-	help
-	  If you say yes here you get support for the Maxim MAX6875
-	  EEPROM-programmable, quad power-supply sequencer/supervisor.
-
-	  This provides an interface to program the EEPROM and reset the chip.
-
-	  This driver also supports the Maxim MAX6874 hex power-supply
-	  sequencer/supervisor if found at a compatible address.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called max6875.
-
 config SENSORS_TSL2550
 	tristate "Taos TSL2550 ambient light sensor"
 	depends on EXPERIMENTAL

drivers/i2c/chips/Makefile

···
 #
 
 obj-$(CONFIG_DS1682)		+= ds1682.o
-obj-$(CONFIG_SENSORS_MAX6875)	+= max6875.o
 obj-$(CONFIG_SENSORS_PCA9539)	+= pca9539.o
 obj-$(CONFIG_SENSORS_PCF8574)	+= pcf8574.o
 obj-$(CONFIG_PCF8575)		+= pcf8575.o

drivers/i2c/chips/max6875.c drivers/misc/eeprom/max6875.c

···
 
     Copyright (C) 2005 Ben Gardner <[e-mail]>
 
-    Based on i2c/chips/eeprom.c
+    Based on eeprom.c
 
     The MAX6875 has a bank of registers and two banks of EEPROM.
     Address ranges are defined as follows:

drivers/misc/eeprom/Kconfig

···
 	  This driver can also be built as a module.  If so, the module
 	  will be called eeprom.
 
+config EEPROM_MAX6875
+	tristate "Maxim MAX6874/5 power supply supervisor"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get read-only support for the user EEPROM of
+	  the Maxim MAX6874/5 EEPROM-programmable, quad power-supply
+	  sequencer/supervisor.
+
+	  All other features of this chip should be accessed via i2c-dev.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max6875.
+
+
 config EEPROM_93CX6
 	tristate "EEPROM 93CX6 support"
 	help

drivers/misc/eeprom/Makefile

···
 obj-$(CONFIG_EEPROM_AT24)	+= at24.o
 obj-$(CONFIG_EEPROM_AT25)	+= at25.o
 obj-$(CONFIG_EEPROM_LEGACY)	+= eeprom.o
+obj-$(CONFIG_EEPROM_MAX6875)	+= max6875.o
 obj-$(CONFIG_EEPROM_93CX6)	+= eeprom_93cx6.o