linux-toradex.git/include/linux/cs5535.h, branch v2.6.38-rc5

drivers/staging/olpc_dcon: convert to new cs5535 gpio API

2011-01-13T16:03:13+00:00

Drop the old geode_gpio crud, as well as the raw outl() calls; instead,
use the Linux GPIO API where possible, and the cs5535_gpio API in other
places.

Note that we don't actually clean up the driver properly yet (once loaded,
it always remains loaded).  That'll come later..

This patch is necessary for building the driver.

Signed-off-by: Andres Salomon 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/gpio/cs5535-gpio.c: add some additional cs5535-specific GPIO functionality

2011-01-13T16:03:13+00:00

This adds (well, re-adds actually) handling for events/IRQs through cs5535
GPIOs.  In the wild and wooly world of CS5535, setup_event() is for
assigning an IRQ to a GPIO filter/event pair, and set_irq() sets up the
pair to trigger IRQs.

These should really only be used in highly platform-specific drivers (such
as OLPC's DCON driver).  Sadly, because set_irq() uses MSRs, this causes
the driver to become X86-specific.

Signed-off-by: Andres Salomon 
Signed-off-by: Daniel Drake 
Cc: Grant Likely 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cs5535: define lxfb/gxfb MSRs in linux/cs5535.h

2009-12-15T16:53:28+00:00

..and include them in the lxfb/gxfb drivers rather than asm/geode.h (where
possible).

Signed-off-by: Andres Salomon 
Cc: Jordan Crouse 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: john stultz 
Cc: Chris Ball 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cs5535: move VSA2 checks into linux/cs5535.h

2009-12-15T16:53:28+00:00

Signed-off-by: Andres Salomon 
Cc: Jordan Crouse 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: john stultz 
Cc: Chris Ball 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cs5535: move the DIVIL MSR definition into linux/cs5535.h

2009-12-15T16:53:28+00:00

The only thing that uses this is the reboot_fixups code.

Signed-off-by: Andres Salomon 
Cc: Jordan Crouse 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: john stultz 
Cc: Chris Ball 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cs5535: add a generic MFGPT driver

2009-12-15T16:53:28+00:00

This is based on the old code on arch/x86/kernel/mfgpt_32.c, except it's
not x86 specific, it's modular, and it makes use of a PCI BAR rather than
a random MSR.  Currently module unloading is not supported; it's uncertain
whether or not it can be made work with the hardware.

[akpm@linux-foundation.org: add X86 dependency]
Signed-off-by: Andres Salomon 
Cc: Jordan Crouse 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: john stultz 
Cc: Chris Ball 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cs5535-gpio: add AMD CS5535/CS5536 GPIO driver support

2009-12-15T16:53:27+00:00

This creates a CS5535/CS5536 GPIO driver which uses a gpio_chip backend
(allowing GPIO users to use the generic GPIO API if desired) while also
allowing architecture-specific users directly (via the cs5535_gpio_*
functions).

Tested on an OLPC machine.  Some Leemotes also use CS5536 (with a mips
cpu), which is why this is in drivers/gpio rather than arch/x86.
Currently, it conflicts with older geode GPIO support; once MFGPT support
is reworked to also be more generic, the older geode code will be removed.

Signed-off-by: Andres Salomon 
Cc: Takashi Iwai 
Cc: Jordan Crouse 
Cc: David Brownell 
Reviewed-by: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds