From 673c0c00382ed807f09d94e806f3519ddeeb4f70 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 15 Oct 2008 22:02:46 -0700 Subject: 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/mcp23s08.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/gpio/mcp23s08.c') diff --git a/drivers/gpio/mcp23s08.c b/drivers/gpio/mcp23s08.c index 8a1b405fefda..89c1d222e9d1 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) { -- cgit v1.2.3