diff options
| author | Benjamin Cama <benoar@dolka.fr> | 2015-07-14 16:25:58 +0200 |
|---|---|---|
| committer | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2015-08-21 17:33:08 +0200 |
| commit | 5be9fc23cdb42e1d383ecc8eae8a8ff70a752708 (patch) | |
| tree | 5213288c4c443e9e73bfcab346f1daa25ea77f83 /arch/arm/mach-orion5x/irq.c | |
| parent | Linux 4.2-rc1 (diff) | |
| download | linux-5be9fc23cdb42e1d383ecc8eae8a8ff70a752708.tar.xz linux-5be9fc23cdb42e1d383ecc8eae8a8ff70a752708.zip | |
ARM: orion5x: fix legacy orion5x IRQ numbers
Since v3.18, attempts to deliver IRQ0 are rejected, breaking orion5x.
Fix this by increasing all interrupts by one, as did 5d6bed2a9c8b for
dove. Also, force MULTI_IRQ_HANDLER for all orion platforms (including
dove) as the specific handler is needed to shift back IRQ numbers by
one.
[gregory.clement@free-electrons.com]: moved the select
MULTI_IRQ_HANDLER from PLAT_ORION_LEGACY to ARCH_ORION5X as it broke
the build for dove.
Fixes: a71b092a9c68 ("ARM: Convert handle_IRQ to use __handle_domain_irq")
Signed-off-by: Benjamin Cama <benoar@dolka.fr>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: <stable@vger.kernel.org>
Tested-by: Detlef Vollmann <dv@vollmann.ch>
Diffstat (limited to 'arch/arm/mach-orion5x/irq.c')
| -rw-r--r-- | arch/arm/mach-orion5x/irq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-orion5x/irq.c b/arch/arm/mach-orion5x/irq.c index cd4bac4d7e43..086ecb87d885 100644 --- a/arch/arm/mach-orion5x/irq.c +++ b/arch/arm/mach-orion5x/irq.c @@ -42,7 +42,7 @@ __exception_irq_entry orion5x_legacy_handle_irq(struct pt_regs *regs) stat = readl_relaxed(MAIN_IRQ_CAUSE); stat &= readl_relaxed(MAIN_IRQ_MASK); if (stat) { - unsigned int hwirq = __fls(stat); + unsigned int hwirq = 1 + __fls(stat); handle_IRQ(hwirq, regs); return; } @@ -51,7 +51,7 @@ __exception_irq_entry orion5x_legacy_handle_irq(struct pt_regs *regs) void __init orion5x_init_irq(void) { - orion_irq_init(0, MAIN_IRQ_MASK); + orion_irq_init(1, MAIN_IRQ_MASK); #ifdef CONFIG_MULTI_IRQ_HANDLER set_handle_irq(orion5x_legacy_handle_irq); |