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authorWill Deacon <will.deacon@arm.com>2011-02-21 15:54:57 +0100
committerWill Deacon <will.deacon@arm.com>2011-05-11 17:04:15 +0200
commit03dd765fe4dd9420ac430d2a7c19498afa4431b3 (patch)
tree434bdb2604f1f57b046772133a107a25561b2e39
parentARM: s5pv310: update IRQ combiner to use chained entry/exit functions (diff)
downloadlinux-03dd765fe4dd9420ac430d2a7c19498afa4431b3.tar.xz
linux-03dd765fe4dd9420ac430d2a7c19498afa4431b3.zip
ARM: msm: update GPIO chained IRQ handler to use entry/exit functions
This patch updates the MSM gpio chained IRQ handler to use the chained IRQ enter/exit functions in order to function correctly on primary controllers with different methods of flow control. Tested-and-reviewed-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
-rw-r--r--arch/arm/mach-msm/gpio-v2.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/mach-msm/gpio-v2.c b/arch/arm/mach-msm/gpio-v2.c
index 56a964e52ad3..cc9c4fd7cccc 100644
--- a/arch/arm/mach-msm/gpio-v2.c
+++ b/arch/arm/mach-msm/gpio-v2.c
@@ -27,6 +27,9 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
+
+#include <asm/mach/irq.h>
+
#include <mach/msm_iomap.h>
#include "gpiomux.h"
@@ -309,8 +312,10 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
*/
static void msm_summary_irq_handler(unsigned int irq, struct irq_desc *desc)
{
- struct irq_data *data = irq_desc_get_irq_data(desc);
unsigned long i;
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+
+ chained_irq_enter(chip, desc);
for (i = find_first_bit(msm_gpio.enabled_irqs, NR_GPIO_IRQS);
i < NR_GPIO_IRQS;
@@ -319,7 +324,8 @@ static void msm_summary_irq_handler(unsigned int irq, struct irq_desc *desc)
generic_handle_irq(msm_gpio_to_irq(&msm_gpio.gpio_chip,
i));
}
- data->chip->irq_ack(data);
+
+ chained_irq_exit(chip, desc);
}
static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on)