[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / spi / Kconfig

#
# SPI driver configuration
#
# NOTE:  the reason this doesn't show SPI slave support is mostly that
# nobody's needed a slave side API yet.  The master-role API is not
# fully appropriate there, so it'd need some thought to do well.
#
menu "SPI support"

config SPI
	bool "SPI support"
	help
	  The "Serial Peripheral Interface" is a low level synchronous
	  protocol.  Chips that support SPI can have data transfer rates
	  up to several tens of Mbit/sec.  Chips are addressed with a
	  controller and a chipselect.  Most SPI slaves don't support
	  dynamic device discovery; some are even write-only or read-only.

	  SPI is widely used by microcontollers to talk with sensors,
	  eeprom and flash memory, codecs and various other controller
	  chips, analog to digital (and d-to-a) converters, and more.
	  MMC and SD cards can be accessed using SPI protocol; and for
	  DataFlash cards used in MMC sockets, SPI must always be used.

	  SPI is one of a family of similar protocols using a four wire
	  interface (select, clock, data in, data out) including Microwire
	  (half duplex), SSP, SSI, and PSP.  This driver framework should
	  work with most such devices and controllers.

config SPI_DEBUG
	boolean "Debug support for SPI drivers"
	depends on SPI && DEBUG_KERNEL
	help
	  Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
	  sysfs, and debugfs support in SPI controller and protocol drivers.

#
# MASTER side ... talking to discrete SPI slave chips including microcontrollers
#

config SPI_MASTER
#	boolean "SPI Master Support"
	boolean
	default SPI
	help
	  If your system has an master-capable SPI controller (which
	  provides the clock and chipselect), you can enable that
	  controller and the protocol drivers for the SPI slave chips
	  that are connected.

comment "SPI Master Controller Drivers"
	depends on SPI_MASTER


#
# Add new SPI master controllers in alphabetical order above this line
#


#
# There are lots of SPI device types, with sensors and memory
# being probably the most widely used ones.
#
comment "SPI Protocol Masters"
	depends on SPI_MASTER


#
# Add new SPI protocol masters in alphabetical order above this line
#


# (slave support would go here)

endmenu # "SPI support"
Commit	Line	Data
8ae12a0d DB	1	#
	2	# SPI driver configuration
	3	#
	4	# NOTE: the reason this doesn't show SPI slave support is mostly that
	5	# nobody's needed a slave side API yet. The master-role API is not
	6	# fully appropriate there, so it'd need some thought to do well.
	7	#
	8	menu "SPI support"
	9
	10	config SPI
	11	bool "SPI support"
	12	help
	13	The "Serial Peripheral Interface" is a low level synchronous
	14	protocol. Chips that support SPI can have data transfer rates
	15	up to several tens of Mbit/sec. Chips are addressed with a
	16	controller and a chipselect. Most SPI slaves don't support
	17	dynamic device discovery; some are even write-only or read-only.
	18
	19	SPI is widely used by microcontollers to talk with sensors,
	20	eeprom and flash memory, codecs and various other controller
	21	chips, analog to digital (and d-to-a) converters, and more.
	22	MMC and SD cards can be accessed using SPI protocol; and for
	23	DataFlash cards used in MMC sockets, SPI must always be used.
	24
	25	SPI is one of a family of similar protocols using a four wire
	26	interface (select, clock, data in, data out) including Microwire
	27	(half duplex), SSP, SSI, and PSP. This driver framework should
	28	work with most such devices and controllers.
	29
	30	config SPI_DEBUG
	31	boolean "Debug support for SPI drivers"
	32	depends on SPI && DEBUG_KERNEL
	33	help
	34	Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
	35	sysfs, and debugfs support in SPI controller and protocol drivers.
	36
	37	#
	38	# MASTER side ... talking to discrete SPI slave chips including microcontrollers
	39	#
	40
	41	config SPI_MASTER
	42	# boolean "SPI Master Support"
	43	boolean
	44	default SPI
	45	help
	46	If your system has an master-capable SPI controller (which
	47	provides the clock and chipselect), you can enable that
	48	controller and the protocol drivers for the SPI slave chips
	49	that are connected.
	50
	51	comment "SPI Master Controller Drivers"
	52	depends on SPI_MASTER
	53
	54
	55	#
	56	# Add new SPI master controllers in alphabetical order above this line
	57	#
	58
	59
	60	#
	61	# There are lots of SPI device types, with sensors and memory
	62	# being probably the most widely used ones.
	63	#
	64	comment "SPI Protocol Masters"
65	depends on SPI_MASTER
66
67
68	#
69	# Add new SPI protocol masters in alphabetical order above this line
70	#
71
72
73	# (slave support would go here)
74
75	endmenu # "SPI support"
76