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authorSimon Guinot <sguinot@lacie.com>2011-07-06 12:41:31 -0400
committerArnd Bergmann <arnd@arndb.de>2011-07-07 16:02:26 +0000
commit659fb32d1b67476f4ade25e9ea0e2642a5b9c4b5 (patch)
treea875904f1c457f321563060491956266a57c6514 /arch/arm/plat-orion/gpio.c
parentd30e1521b2afb5e6f21ca8bc1a4b6ec2afc93597 (diff)
downloadlinux-659fb32d1b67476f4ade25e9ea0e2642a5b9c4b5.tar.bz2
genirq: replace irq_gc_ack() with {set,clr}_bit variants (fwd)
This fixes a regression introduced by e59347a "arm: orion: Use generic irq chip". Depending on the device, interrupts acknowledgement is done by setting or by clearing a dedicated register. Replace irq_gc_ack() with some {set,clr}_bit variants allows to handle both cases. Note that this patch affects the following SoCs: Davinci, Samsung and Orion. Except for this last, the change is minor: irq_gc_ack() is just renamed into irq_gc_ack_set_bit(). For the Orion SoCs, the edge GPIO interrupts support is currently broken. irq_gc_ack() try to acknowledge a such interrupt by setting the corresponding cause register bit. The Orion GPIO device expect the opposite. To fix this issue, the irq_gc_ack_clr_bit() variant is used. Tested on Network Space v2. Reported-by: Joey Oravec <joravec@drewtech.com> Signed-off-by: Simon Guinot <sguinot@lacie.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/plat-orion/gpio.c')
-rw-r--r--arch/arm/plat-orion/gpio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
index 5b4fffab1eb4..41ab97ebe4cf 100644
--- a/arch/arm/plat-orion/gpio.c
+++ b/arch/arm/plat-orion/gpio.c
@@ -432,7 +432,7 @@ void __init orion_gpio_init(int gpio_base, int ngpio,
ct->regs.mask = ochip->mask_offset + GPIO_EDGE_MASK_OFF;
ct->regs.ack = GPIO_EDGE_CAUSE_OFF;
ct->type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
- ct->chip.irq_ack = irq_gc_ack;
+ ct->chip.irq_ack = irq_gc_ack_clr_bit;
ct->chip.irq_mask = irq_gc_mask_clr_bit;
ct->chip.irq_unmask = irq_gc_mask_set_bit;
ct->chip.irq_set_type = gpio_irq_set_type;