From 666bdfc027cde41a171862dc698987a378c8b66a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 9 Feb 2015 18:00:42 +0100 Subject: [PATCH RFC] bcma: use two different initcalls if built-in MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is needed as we can't initialize bus during fs_initcall. Initialization requires SPROM which depends on NVRAM which depends on mtd. Since mtd, spi, nand, spi-nor use standard module_init, we have to do the same in bcma. Without this we'll try to initialize SPROM without having a ready SPROM proviver registered using bcma_arch_register_fallback_sprom. Signed-off-by: Rafał Miłecki --- While this patch seems to work and I can compile bcma as built-in and module, I'm not too proud of it. I don't really like these #if(n)def tricks and I'm afraid bcma_modinit may be called even if bcma_modinit_early failed. Do you see any better idea of solving this? --- drivers/bcma/main.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index 9635f10..c394207 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c @@ -639,13 +639,25 @@ static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env) core->id.rev, core->id.class); } +/* Bus has to be registered early, before any bcma driver */ +static int __init bcma_modinit_early(void) +{ + return bus_register(&bcma_bus_type); +} +#ifndef MODULE +fs_initcall(bcma_modinit_early); +#endif + +/* Initialization has to be done later with SPI/mtd/NAND/SPROM available */ static int __init bcma_modinit(void) { int err; - err = bus_register(&bcma_bus_type); +#ifdef MODULE + err = bcma_modinit_early(); if (err) return err; +#endif err = bcma_host_soc_register_driver(); if (err) { @@ -662,7 +674,7 @@ static int __init bcma_modinit(void) return err; } -fs_initcall(bcma_modinit); +module_init(bcma_modinit); static void __exit bcma_modexit(void) { -- 1.8.4.5