linux-toradex.git/include/linux/of_gpio.h, branch v2.6.31.2

of/gpio: Implement of_gpio_count()

2008-12-21T03:21:14+00:00

This function is used to count how many GPIOs are specified for
a device node.

Signed-off-by: Anton Vorontsov 
Signed-off-by: Paul Mackerras

of/gpio: Implement of_get_gpio_flags()

2008-12-03T10:04:05+00:00

This adds a new function, of_get_gpio_flags, which is like
of_get_gpio(), but accepts a new "flags" argument.  This new function
will be used by the drivers that need to retrieve additional GPIO
information, such as active-low flag.

Also, this changes the default ("simple") .xlate routine to warn about
bogus (< 2) #gpio-cells usage: the second cell should always be present
for GPIO flags.

Signed-off-by: Anton Vorontsov 
Signed-off-by: Paul Mackerras

of_gpio: Should use new header

2008-07-22T00:39:30+00:00

Since commit 7560fa60fcdcdb0da662f6a9fad9064b554ef46c (gpio: 
and "no GPIO support here" stubs) drivers can use GPIOs if they're available,
but don't require them.

This patch actually enables this feature.

Signed-off-by: Wolfgang Grandegger 
Signed-off-by: Anton Vorontsov 
Signed-off-by: Benjamin Herrenschmidt

[POWERPC] OF helpers for the GPIO API

2008-04-16T21:46:11+00:00

This implements various helpers to support OF bindings for the GPIO
LIB API.

Previously this was PowerPC specific, but it seems this code isn't
arch-dependent anyhow, so let's place it into of/.

SPARC will not see this addition yet, real hardware seem to not use
GPIOs at all. But this might change:

   http://www.leox.org/docs/faq_MLleon.html

"16-bit I/O port" sounds promising. :-)

Signed-off-by: Anton Vorontsov 
Acked-by: Grant Likely 
Signed-off-by: Paul Mackerras