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authorDavid Brownell <dbrownell@users.sourceforge.net>2009-04-02 16:57:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-02 19:04:51 -0700
commit8a0cecffeb52363a57257bbbbd58f4c4537a75bb (patch)
treeee7f754d49a2f2ad75b72ec59e90e6fa2c0753eb /Documentation/feature-removal-schedule.txt
parent926b663ce8215ba448960e1ff6e58b67a2c3b99b (diff)
gpio: gpio_{request,free}() now required (feature removal)
We want to phase out the GPIO "autorequest" mechanism in gpiolib and require all callers to use gpio_request(). - Update feature-removal-schedule - Update the documentation now - Convert the relevant pr_warning() in gpiolib to a WARN() so folk using this mechanism get a noisy stack dump Some drivers and board init code will probably need to change. Implementations not using gpiolib will still be fine; they are already required to implement gpio_{request,free}() stubs. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/feature-removal-schedule.txt')
-rw-r--r--Documentation/feature-removal-schedule.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index d0f354670646..a23361e80c64 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -255,6 +255,16 @@ Who: Jan Engelhardt <jengelh@computergmbh.de>
---------------------------
+What: GPIO autorequest on gpio_direction_{input,output}() in gpiolib
+When: February 2010
+Why: All callers should use explicit gpio_request()/gpio_free().
+ The autorequest mechanism in gpiolib was provided mostly as a
+ migration aid for legacy GPIO interfaces (for SOC based GPIOs).
+ Those users have now largely migrated. Platforms implementing
+ the GPIO interfaces without using gpiolib will see no changes.
+Who: David Brownell <dbrownell@users.sourceforge.net>
+---------------------------
+
What: b43 support for firmware revision < 410
When: The schedule was July 2008, but it was decided that we are going to keep the
code as long as there are no major maintanance headaches.