From bfd15117aeafcc42033cf5179cc15f4bd8bce957 Mon Sep 17 00:00:00 2001 From: Graf Yang Date: Wed, 8 Oct 2008 18:02:44 +0800 Subject: Blackfin arch: Not call generic set_irq_handler() in bfin_gpio_irq_type() due to spinlock recursion Signed-off-by: Graf Yang Signed-off-by: Bryan Wu --- arch/blackfin/mach-common/ints-priority.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'arch/blackfin/mach-common') diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index f65b3a13a8c..34e8a726ffd 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(); -- cgit v1.2.3