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| author | David Brownell <dbrownell@users.sourceforge.net> | 2008-10-15 22:03:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 11:21:40 -0700 |
| commit | 2f8d11971b9f54362437ce70f4d1911f0996d542 (patch) | |
| tree | 48fb0df29994e976325761bd9e07ce107a96b6d5 /net | |
| parent | 3d599d1ca57f443e5c4ff5af1e69d90350082f77 (diff) | |
| download | kernel_samsung_smdk4412-2f8d11971b9f54362437ce70f4d1911f0996d542.zip kernel_samsung_smdk4412-2f8d11971b9f54362437ce70f4d1911f0996d542.tar.gz kernel_samsung_smdk4412-2f8d11971b9f54362437ce70f4d1911f0996d542.tar.bz2 | |
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 'net')
0 files changed, 0 insertions, 0 deletions