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authorKevin Hilman <khilman@ti.com>2012-06-29 07:03:34 -0700
committerTony Lindgren <tony@atomide.com>2012-06-29 07:19:52 -0700
commitd660e9b92b44f113c3fc345a8ce66ffa56a3506f (patch)
tree1f81b6c3c045333746c8b53e71b2534614b79bff
parent4556494b06801b56d2b09e4cce0885902b2429bf (diff)
downloadop-kernel-dev-d660e9b92b44f113c3fc345a8ce66ffa56a3506f.zip
op-kernel-dev-d660e9b92b44f113c3fc345a8ce66ffa56a3506f.tar.gz
ARM: OMAP2+: PM: fix IRQ_NOAUTOEN removal by mis-merge
commit 99b59df0 (ARM: OMAP3: PM: fix shared PRCM interrupt leave disabled at boot) added IRQ_NOAUTOEN to the PRCM interrupt so it could be enabled later if needed. However, this commit was partially undone when merging the IO daisy chain rework in 9a17d88e (Merge tag 'omap-devel-c-for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-pm This patch adds back the IRQ_NOAUTOEN fix that was removed by the merge resolution. This also fixes the following boot-time warning that showed up after merging the IO daisy chain rework: [ 3.849334] WARNING: at kernel/irq/manage.c:436 enable_irq+0x3c/0x78() [ 3.856231] Unbalanced enable for IRQ 297 [ 3.860473] Modules linked in: [ 3.863739] [<c001a114>] (unwind_backtrace+0x0/0xf0) from [<c003c7e8>] (warn_slowpath_common+0x4c/0x64) [ 3.873687] [<c003c7e8>] (warn_slowpath_common+0x4c/0x64) from [<c003c894>] (warn_slowpath_fmt+0x30/0x40) [ 3.883819] [<c003c894>] (warn_slowpath_fmt+0x30/0x40) from [<c00993e0>] (enable_irq+0x3c/0x78) [ 3.893035] [<c00993e0>] (enable_irq+0x3c/0x78) from [<c067b1e8>] (omap3_pm_init+0x328/0x5f4) [ 3.902099] [<c067b1e8>] (omap3_pm_init+0x328/0x5f4) from [<c067161c>] (init_machine_late+0x1c/0x28) [ 3.911773] [<c067161c>] (init_machine_late+0x1c/0x28) from [<c0008648>] (do_one_initcall+0x34/0x178) [ 3.921539] [<c0008648>] (do_one_initcall+0x34/0x178) from [<c066e8f4>] (kernel_init+0xfc/0x1c0) [ 3.930847] [<c066e8f4>] (kernel_init+0xfc/0x1c0) from [<c00140b0>] (kernel_thread_exit+0x0/0x8) [ 3.940246] ---[ end trace 55a0ad32ca2ca682 ]--- Reported-by: Javier Martinez Canillas <javier@dowhile0.org> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
-rw-r--r--arch/arm/mach-omap2/prm2xxx_3xxx.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c
index e10fd1e..a0309de 100644
--- a/arch/arm/mach-omap2/prm2xxx_3xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c
@@ -351,11 +351,16 @@ static void __init omap3xxx_prm_enable_io_wakeup(void)
static int __init omap3xxx_prcm_init(void)
{
+ int ret = 0;
+
if (cpu_is_omap34xx()) {
omap3xxx_prm_enable_io_wakeup();
- return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
+ ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
+ if (!ret)
+ irq_set_status_flags(omap_prcm_event_to_irq("io"),
+ IRQ_NOAUTOEN);
}
- return 0;
+ return ret;
}
subsys_initcall(omap3xxx_prcm_init);
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