diff options
| author | David Brownell <dbrownell@users.sourceforge.net> | 2008-10-16 05:02:46 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 18:21:38 (GMT) |
| commit | 673c0c00382ed807f09d94e806f3519ddeeb4f70 (patch) | |
| tree | 005bccdee7f27660fd2c738fbe26635f019aae96 /drivers/gpio/mcp23s08.c | |
| parent | 2bec19feabd53cba75e9dab0e79afbe868a37113 (diff) | |
| download | linux-673c0c00382ed807f09d94e806f3519ddeeb4f70.tar.xz | |
spi: core and gpio expanders use subsys_init
Make the SPI external GPIO expander drivers register themselves at
subsys_initcall() time when they're statically linked, and make the SPI
core do its driver model initialization earlier so that's safe.
SOC-integrated GPIOs are available starting very early -- often before
initcalls start to run, or earily in arch_initcall() at latest -- so this
improves consistency, letting more subsystems rely on GPIOs being usable
by their own subsys_initcall() code.
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 'drivers/gpio/mcp23s08.c')
| -rw-r--r-- | drivers/gpio/mcp23s08.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpio/mcp23s08.c b/drivers/gpio/mcp23s08.c index 8a1b405..89c1d22 100644 --- a/drivers/gpio/mcp23s08.c +++ b/drivers/gpio/mcp23s08.c @@ -419,7 +419,10 @@ static int __init mcp23s08_init(void) { return spi_register_driver(&mcp23s08_driver); } -module_init(mcp23s08_init); +/* register after spi postcore initcall and before + * subsys initcalls that may rely on these GPIOs + */ +subsys_initcall(mcp23s08_init); static void __exit mcp23s08_exit(void) { |