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| author | David Brownell | 2008-10-16 07:03:13 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2008-10-16 20:21:40 +0200 |
| commit | 2f8d11971b9f54362437ce70f4d1911f0996d542 (patch) | |
| tree | 48fb0df29994e976325761bd9e07ce107a96b6d5 /lib/spinlock_debug.c | |
| parent | gpio_free might sleep, generic part (diff) | |
| download | kernel-qcow2-linux-2f8d11971b9f54362437ce70f4d1911f0996d542.tar.gz kernel-qcow2-linux-2f8d11971b9f54362437ce70f4d1911f0996d542.tar.xz kernel-qcow2-linux-2f8d11971b9f54362437ce70f4d1911f0996d542.zip | |
gpio: i2c expanders use subsys_init
Make the I2C external GPIO expander drivers register themselves at
subsys_initcall() time when they're statically linked.
SOC-integrated GPIOs are available starting very early -- early in
arch_initcall() at latest, but often even before initcalls start to run --
so this improves consistency, so more subsystems can rely on GPIOs in
their own subsys_initcall() code.
(This isn't a theoretical problem. This is one of several patches needed
to resolve oopsing observed when statically linking kernels on a DaVinci
EVM. Its pcf857x GPIOs needed to be available well before some other
drivers initialized.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/spinlock_debug.c')
0 files changed, 0 insertions, 0 deletions