MIPS: JZ4740: GPIO: Check correct IRQ in demux handler

Check the trigger direction for the triggered IRQ instead of the parent IRQ.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/2433/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/jz4740/gpio.c

@@ -309,7 +309,7 @@ static void jz_gpio_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
 
 	gpio_irq = chip->irq_base + __fls(flag);
 
-	jz_gpio_check_trigger_both(chip, irq);
+	jz_gpio_check_trigger_both(chip, gpio_irq);
 
 	generic_handle_irq(gpio_irq);
 };