[deliverable/linux.git] / drivers / rtc / Kconfig

\#
# RTC class/drivers configuration
#

menu "Real Time Clock"

config RTC_LIB
	tristate

config RTC_CLASS
	tristate "RTC class"
	depends on EXPERIMENTAL
	default n
	select RTC_LIB
	help
	  Generic RTC class support. If you say yes here, you will
 	  be allowed to plug one or more RTCs to your system. You will
	  probably want to enable one of more of the interfaces below.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-class.

config RTC_HCTOSYS
	bool "Set system time from RTC on startup"
	depends on RTC_CLASS = y
	default y
	help
	  If you say yes here, the system time will be set using
	  the value read from the specified RTC device. This is useful
	  in order to avoid unnecessary fschk runs.

config RTC_HCTOSYS_DEVICE
	string "The RTC to read the time from"
	depends on RTC_HCTOSYS = y
	default "rtc0"
	help
	  The RTC device that will be used as the source for
	  the system time, usually rtc0.

comment "RTC interfaces"
	depends on RTC_CLASS

config RTC_INTF_SYSFS
	tristate "sysfs"
	depends on RTC_CLASS && SYSFS
	default RTC_CLASS
	help
	  Say yes here if you want to use your RTC using the sysfs
	  interface, /sys/class/rtc/rtcX .

	  This driver can also be built as a module. If so, the module
	  will be called rtc-sysfs.

config RTC_INTF_PROC
	tristate "proc"
	depends on RTC_CLASS && PROC_FS
	default RTC_CLASS
	help
	  Say yes here if you want to use your RTC using the proc
	  interface, /proc/driver/rtc .

	  This driver can also be built as a module. If so, the module
	  will be called rtc-proc.

config RTC_INTF_DEV
	tristate "dev"
	depends on RTC_CLASS
	default RTC_CLASS
	help
	  Say yes here if you want to use your RTC using the dev
	  interface, /dev/rtc .

	  This driver can also be built as a module. If so, the module
	  will be called rtc-dev.

comment "RTC drivers"
	depends on RTC_CLASS

config RTC_DRV_X1205
	tristate "Xicor/Intersil X1205"
	depends on RTC_CLASS && I2C
	help
	  If you say yes here you get support for the
	  Xicor/Intersil X1205 RTC chip.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-x1205.

config RTC_DRV_DS1672
	tristate "Dallas/Maxim DS1672"
	depends on RTC_CLASS && I2C
	help
	  If you say yes here you get support for the
	  Dallas/Maxim DS1672 timekeeping chip.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-ds1672.

config RTC_DRV_PCF8563
	tristate "Philips PCF8563/Epson RTC8564"
	depends on RTC_CLASS && I2C
	help
	  If you say yes here you get support for the
	  Philips PCF8563 RTC chip. The Epson RTC8564
	  should work as well.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-pcf8563.

config RTC_DRV_RS5C372
	tristate "Ricoh RS5C372A/B"
	depends on RTC_CLASS && I2C
	help
	  If you say yes here you get support for the
	  Ricoh RS5C372A and RS5C372B RTC chips.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-rs5c372.

config RTC_DRV_M48T86
	tristate "ST M48T86/Dallas DS12887"
	depends on RTC_CLASS
	help
	  If you say Y here you will get support for the
	  ST M48T86 and Dallas DS12887 RTC chips.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-m48t86.

config RTC_DRV_EP93XX
	tristate "Cirrus Logic EP93XX"
	depends on RTC_CLASS && ARCH_EP93XX
	help
	  If you say yes here you get support for the
	  RTC embedded in the Cirrus Logic EP93XX processors.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-ep93xx.

config RTC_DRV_SA1100
	tristate "SA11x0/PXA2xx"
	depends on RTC_CLASS && (ARCH_SA1100 || ARCH_PXA)
	help
	  If you say Y here you will get access to the real time clock
	  built into your SA11x0 or PXA2xx CPU.

	  To compile this driver as a module, choose M here: the
	  module will be called rtc-sa1100.

config RTC_DRV_VR41XX
	tristate "NEC VR41XX"
	depends on RTC_CLASS && CPU_VR41XX
	help
	  If you say Y here you will get access to the real time clock
	  built into your NEC VR41XX CPU.

	  To compile this driver as a module, choose M here: the
	  module will be called rtc-vr41xx.

config RTC_DRV_TEST
	tristate "Test driver/device"
	depends on RTC_CLASS
	help
	  If you say yes here you get support for the
	  RTC test driver. It's a software RTC which can be
	  used to test the RTC subsystem APIs. It gets
	  the time from the system clock.
	  You want this driver only if you are doing development
	  on the RTC subsystem. Please read the source code
	  for further details.

	  This driver can also be built as a module. If so, the module
	  will be called rtc-test.

endmenu
Commit	Line	Data
0c86edc0	1	\#
c58411e9 AZ	2	# RTC class/drivers configuration
	3	#
	4
0c86edc0 AZ	5	menu "Real Time Clock"
0c86edc0 AZ	6
c58411e9	7	config RTC_LIB
0c86edc0 AZ	8	tristate
	9
	10	config RTC_CLASS
	11	tristate "RTC class"
	12	depends on EXPERIMENTAL
	13	default n
	14	select RTC_LIB
	15	help
	16	Generic RTC class support. If you say yes here, you will
	17	be allowed to plug one or more RTCs to your system. You will
	18	probably want to enable one of more of the interfaces below.
	19
	20	This driver can also be built as a module. If so, the module
	21	will be called rtc-class.
	22
	23	config RTC_HCTOSYS
	24	bool "Set system time from RTC on startup"
	25	depends on RTC_CLASS = y
	26	default y
	27	help
	28	If you say yes here, the system time will be set using
	29	the value read from the specified RTC device. This is useful
	30	in order to avoid unnecessary fschk runs.
	31
	32	config RTC_HCTOSYS_DEVICE
	33	string "The RTC to read the time from"
	34	depends on RTC_HCTOSYS = y
	35	default "rtc0"
	36	help
	37	The RTC device that will be used as the source for
	38	the system time, usually rtc0.
	39
	40	comment "RTC interfaces"
	41	depends on RTC_CLASS
	42
c5c3e192 AZ	43	config RTC_INTF_SYSFS
	44	tristate "sysfs"
	45	depends on RTC_CLASS && SYSFS
	46	default RTC_CLASS
	47	help
	48	Say yes here if you want to use your RTC using the sysfs
	49	interface, /sys/class/rtc/rtcX .
	50
	51	This driver can also be built as a module. If so, the module
	52	will be called rtc-sysfs.
	53
728a2947 AZ	54	config RTC_INTF_PROC
	55	tristate "proc"
	56	depends on RTC_CLASS && PROC_FS
	57	default RTC_CLASS
	58	help
	59	Say yes here if you want to use your RTC using the proc
	60	interface, /proc/driver/rtc .
	61
	62	This driver can also be built as a module. If so, the module
	63	will be called rtc-proc.
	64
e824290e AZ	65	config RTC_INTF_DEV
	66	tristate "dev"
	67	depends on RTC_CLASS
	68	default RTC_CLASS
	69	help
	70	Say yes here if you want to use your RTC using the dev
	71	interface, /dev/rtc .
	72
	73	This driver can also be built as a module. If so, the module
	74	will be called rtc-dev.
	75
0c86edc0 AZ	76	comment "RTC drivers"
	77	depends on RTC_CLASS
	78
1fec7c66 AZ	79	config RTC_DRV_X1205
	80	tristate "Xicor/Intersil X1205"
	81	depends on RTC_CLASS && I2C
	82	help
	83	If you say yes here you get support for the
	84	Xicor/Intersil X1205 RTC chip.
	85
	86	This driver can also be built as a module. If so, the module
	87	will be called rtc-x1205.
	88
edf1aaa3 AZ	89	config RTC_DRV_DS1672
	90	tristate "Dallas/Maxim DS1672"
	91	depends on RTC_CLASS && I2C
	92	help
	93	If you say yes here you get support for the
	94	Dallas/Maxim DS1672 timekeeping chip.
	95
	96	This driver can also be built as a module. If so, the module
	97	will be called rtc-ds1672.
	98
b5a82d62 AZ	99	config RTC_DRV_PCF8563
	100	tristate "Philips PCF8563/Epson RTC8564"
	101	depends on RTC_CLASS && I2C
	102	help
	103	If you say yes here you get support for the
	104	Philips PCF8563 RTC chip. The Epson RTC8564
	105	should work as well.
	106
	107	This driver can also be built as a module. If so, the module
	108	will be called rtc-pcf8563.
	109
7520b94d AZ	110	config RTC_DRV_RS5C372
	111	tristate "Ricoh RS5C372A/B"
	112	depends on RTC_CLASS && I2C
	113	help
	114	If you say yes here you get support for the
	115	Ricoh RS5C372A and RS5C372B RTC chips.
	116
	117	This driver can also be built as a module. If so, the module
	118	will be called rtc-rs5c372.
	119
1d98af87 AZ	120	config RTC_DRV_M48T86
	121	tristate "ST M48T86/Dallas DS12887"
	122	depends on RTC_CLASS
	123	help
	124	If you say Y here you will get support for the
	125	ST M48T86 and Dallas DS12887 RTC chips.
	126
	127	This driver can also be built as a module. If so, the module
	128	will be called rtc-m48t86.
	129
fd507e2f AZ	130	config RTC_DRV_EP93XX
	131	tristate "Cirrus Logic EP93XX"
	132	depends on RTC_CLASS && ARCH_EP93XX
	133	help
	134	If you say yes here you get support for the
	135	RTC embedded in the Cirrus Logic EP93XX processors.
	136
	137	This driver can also be built as a module. If so, the module
	138	will be called rtc-ep93xx.
	139
e842f1c8 RP	140	config RTC_DRV_SA1100
	141	tristate "SA11x0/PXA2xx"
	142	depends on RTC_CLASS && (ARCH_SA1100 \|\| ARCH_PXA)
	143	help
	144	If you say Y here you will get access to the real time clock
	145	built into your SA11x0 or PXA2xx CPU.
	146
	147	To compile this driver as a module, choose M here: the
	148	module will be called rtc-sa1100.
fd507e2f	149
8417eb7a	150	config RTC_DRV_VR41XX
3e16f6af	151	tristate "NEC VR41XX"
8417eb7a	152	depends on RTC_CLASS && CPU_VR41XX
3e16f6af AZ	153	help
	154	If you say Y here you will get access to the real time clock
	155	built into your NEC VR41XX CPU.
	156
	157	To compile this driver as a module, choose M here: the
	158	module will be called rtc-vr41xx.
8417eb7a	159
a95579cd AZ	160	config RTC_DRV_TEST
	161	tristate "Test driver/device"
	162	depends on RTC_CLASS
	163	help
	164	If you say yes here you get support for the
	165	RTC test driver. It's a software RTC which can be
	166	used to test the RTC subsystem APIs. It gets
	167	the time from the system clock.
	168	You want this driver only if you are doing development
	169	on the RTC subsystem. Please read the source code
	170	for further details.
	171
	172	This driver can also be built as a module. If so, the module
	173	will be called rtc-test.
	174
0c86edc0	175	endmenu