aha/drivers/spi/Makefile

#
# Makefile for kernel SPI drivers.
#

ifeq ($(CONFIG_SPI_DEBUG),y)
EXTRA_CFLAGS += -DDEBUG
endif

# small core, mostly translating board-specific
# config declarations into driver model code
obj-$(CONFIG_SPI_MASTER)		+= spi.o

# SPI master controller drivers (bus)
# 	... add above this line ...

# SPI protocol drivers (device/link on bus)
# 	... add above this line ...

# SPI slave controller drivers (upstream link)
# 	... add above this line ...

# SPI slave drivers (protocol for that link)
# 	... add above this line ...
[PATCH] spi: simple SPI framework This is the core of a small SPI framework, implementing the model of a queue of messages which complete asynchronously (with thin synchronous wrappers on top). - It's still less than 2KB of ".text" (ARM). If there's got to be a mid-layer for something so simple, that's the right size budget. :) - The guts use board-specific SPI device tables to build the driver model tree. (Hardware probing is rarely an option.) - This version of Kconfig includes no drivers. At this writing there are two known master controller drivers (PXA/SSP, OMAP MicroWire) and three protocol drivers (CS8415a, ADS7846, DataFlash) with LKML mentions of other drivers in development. - No userspace API. There are several implementations to compare. Implement them like any other driver, and bind them with sysfs. The changes from last version posted to LKML (on 11-Nov-2005) are minor, and include: - One bugfix (removes a FIXME), with the visible effect of making device names be "spiB.C" where B is the bus number and C is the chipselect. - The "caller provides DMA mappings" mechanism now has kerneldoc, for DMA drivers that want to be fancy. - Hey, the framework init can be subsys_init. Even though board init logic fires earlier, at arch_init ... since the framework init is for driver support, and the board init support uses static init. - Various additional spec/doc clarifications based on discussions with other folk. It adds a brief "thank you" at the end, for folk who've helped nudge this framework into existence. As I've said before, I think that "protocol tweaking" is the main support that this driver framework will need to evolve. From: Mark Underwood <basicmark@yahoo.com> Update the SPI framework to remove a potential priority inversion case by reverting to kmalloc if the pre-allocated DMA-safe buffer isn't available. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 2006-01-08 21:34:19 +00:00			`#`
			`# Makefile for kernel SPI drivers.`
			`#`

			`ifeq ($(CONFIG_SPI_DEBUG),y)`
			`EXTRA_CFLAGS += -DDEBUG`
			`endif`

			`# small core, mostly translating board-specific`
			`# config declarations into driver model code`
			`obj-$(CONFIG_SPI_MASTER) += spi.o`

			`# SPI master controller drivers (bus)`
			`# ... add above this line ...`

			`# SPI protocol drivers (device/link on bus)`
			`# ... add above this line ...`

			`# SPI slave controller drivers (upstream link)`
			`# ... add above this line ...`

			`# SPI slave drivers (protocol for that link)`
			`# ... add above this line ...`