Daniel Vetter b0209b3995 i2c: export bit-banging algo functions ... i915 has a hw i2c controller (gmbus) but for a bunch of stupid reasons we need to be able to fall back to the bit-banging algo on gpio pins. The current code sets up a 2nd i2c controller for the same i2c bus using the bit-banging algo. This has a bunch of issues, the major one being that userspace can directly access this fallback i2c adaptor behind the drivers back. But we need to frob a few registers before and after using fallback gpio bit-banging, so this horribly fails. The new plan is to only set up one i2c adaptor and transparently fall back to bit-banging by directly calling the xfer function of the bit- banging algo in the i2c core. To make that possible, export the 2 i2c algo functions. v2: As suggested by Jean Delvare, simply export the i2c_bit_algo vtable instead of the individual functions. Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>		2012-02-29 20:47:42 +01:00
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algos	i2c: export bit-banging algo functions	2012-02-29 20:47:42 +01:00
busses	Merge branches 'for-33/i2c/eg20t' and 'for-33/i2c/omap' into for-linus/i2c-33	2012-01-17 23:30:41 +00:00
muxes	i2c/gpio-i2cmux: Convert to use module_platform_driver()	2012-01-12 20:32:04 +01:00
i2c-boardinfo.c	i2c: add export.h to i2c-boardinfo.c for EXPORT_SYMBOL	2011-10-31 19:31:29 -04:00
i2c-core.c	i2c: Fix device name for 10-bit slave address	2011-11-23 11:33:07 +01:00
i2c-core.h
i2c-dev.c	i2c-dev: Use memdup_user	2012-01-12 20:32:04 +01:00
i2c-mux.c
i2c-smbus.c
Kconfig	doc: Kconfig: Typo: square -> squared	2011-07-11 14:22:32 +02:00
Makefile