diff options
| author |   Graf Yang <graf.yang@analog.com> | 2008-10-08 18:02:44 +0800 |
|---|---|---|
| committer |   Bryan Wu <cooloney@kernel.org> | 2008-10-08 18:02:44 +0800 |
| commit | bfd15117aeafcc42033cf5179cc15f4bd8bce957 (patch) | |
| tree | d4d41e44bc2d301d24ec0423b646f83950823e5b /arch/blackfin/mach-common/ints-priority.c | |
| parent | Blackfin arch: Use DTEST rather than DMA to poke at L1 SRAM during exception context (diff) | |
| download | linux-dev-bfd15117aeafcc42033cf5179cc15f4bd8bce957.tar.xz linux-dev-bfd15117aeafcc42033cf5179cc15f4bd8bce957.zip | |
Blackfin arch: Not call generic set_irq_handler() in bfin_gpio_irq_type() due to spinlock recursion
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/mach-common/ints-priority.c')
| -rw-r--r-- | arch/blackfin/mach-common/ints-priority.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index f65b3a13a8c3..34e8a726ffda 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -364,6 +364,14 @@ static void bfin_demux_error_irq(unsigned int int_err_irq, } #endif /* BF537_GENERIC_ERROR_INT_DEMUX */ +static inline void bfin_set_irq_handler(unsigned irq, irq_flow_handler_t handle) +{ + struct irq_desc *desc = irq_desc + irq; + /* May not call generic set_irq_handler() due to spinlock + recursion. */ + desc->handle_irq = handle; +} + #if !defined(CONFIG_BF54x) static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; @@ -476,9 +484,9 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) SSYNC(); if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) - set_irq_handler(irq, handle_edge_irq); + bfin_set_irq_handler(irq, handle_edge_irq); else - set_irq_handler(irq, handle_level_irq); + bfin_set_irq_handler(irq, handle_level_irq); return 0; } @@ -808,10 +816,10 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { pint[bank]->edge_set = pintbit; - set_irq_handler(irq, handle_edge_irq); + bfin_set_irq_handler(irq, handle_edge_irq); } else { pint[bank]->edge_clear = pintbit; - set_irq_handler(irq, handle_level_irq); + bfin_set_irq_handler(irq, handle_level_irq); } SSYNC(); |