pinctrl: sirf: add lost chained_irq_enter and exit in sirfsoc_gpio_handle_irq
This patch fixes the chained irq hang issue, tested by DM9000 driver using
GPIO0-3(irqnr=131) as the external IRQ on SiRFmarco:
$ cat /proc/interrupts
CPU0 CPU1
32: 1608 0 GIC sirfsoc_timer0
33: 0 3197 GIC sirfsoc_timer1
50: 10207 0 GIC sirfsoc-uart
56: 2 0 GIC
cc0e0000.i2c
70: 44 0 GIC mmc0
131: 333 0 sirf-gpio-irq eth0
...
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>