commit 1f6b5dd41f3b38739f0275b1539c57b34c5b22a3
author Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tue Jan 25 16:54:22 2011 +0100
committer Sascha Hauer <s.hauer@pengutronix.de> Wed Jan 26 08:27:56 2011 +0100
tree 11ace5dbb2c5718598ad8e55e4fbfe658aa3d3e0
parent 5f804df3cca990bc2f0bd1f126c134af1d2a3ca2

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>

arch/arm/mach-mxs/gpio.c

diff --git a/arch/arm/mach-mxs/gpio.c b/arch/arm/mach-mxs/gpio.c
index d7ad7a6..cb0c0e8 100644
--- a/arch/arm/mach-mxs/gpio.c
+++ b/arch/arm/mach-mxs/gpio.c
@@ -139,6 +139,8 @@
 	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));