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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2011-01-25 16:54:22 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2011-01-26 08:27:56 +0100
commit1f6b5dd41f3b38739f0275b1539c57b34c5b22a3 (patch)
tree11ace5dbb2c5718598ad8e55e4fbfe658aa3d3e0 /arch/arm/mach-mxs
parentARM: mach-imx/mach-mx25_3ds: Fix section type (diff)
downloadlinux-1f6b5dd41f3b38739f0275b1539c57b34c5b22a3.tar.xz
linux-1f6b5dd41f3b38739f0275b1539c57b34c5b22a3.zip
ARM: mxs: acknowledge gpio irq
This fixes a machine hang after a gpio irq triggered. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mxs')
-rw-r--r--arch/arm/mach-mxs/gpio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/gpio.c b/arch/arm/mach-mxs/gpio.c
index d7ad7a61366d..cb0c0e83a527 100644
--- a/arch/arm/mach-mxs/gpio.c
+++ b/arch/arm/mach-mxs/gpio.c
@@ -139,6 +139,8 @@ static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
struct mxs_gpio_port *port = (struct mxs_gpio_port *)get_irq_data(irq);
u32 gpio_irq_no_base = port->virtual_irq_start;
+ desc->irq_data.chip->irq_ack(&desc->irq_data);
+
irq_stat = __raw_readl(port->base + PINCTRL_IRQSTAT(port->id)) &
__raw_readl(port->base + PINCTRL_IRQEN(port->id));