xtensa: support s6000 gpio irqs and alternate function selection

Implement an irq chip to handle interrupts via gpio.  The GPIO chip
initialization function now takes a bitmask denoting pins that should
be configured for their alternate function.

changes compared to v1:
- fixed bug on edge interrupt configuration
- accommodated to function name change
- moved definition of VARIANT_NR_IRQS to this patch
- renamed __XTENSA_S6000_IRQ_H to _XTENSA_S6000_IRQ_H as requested

Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Johannes Weiner <jw@emlix.com>
Signed-off-by: Chris Zankel <chris@zankel.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/xtensa/platforms/s6105/setup.c b/arch/xtensa/platforms/s6105/setup.c
index 855ddeadc43d..95fa23c8e632 100644
--- a/arch/xtensa/platforms/s6105/setup.c
+++ b/arch/xtensa/platforms/s6105/setup.c
@@ -49,7 +49,7 @@ void __init platform_setup(char **cmdline)
 
 void __init platform_init(bp_tag_t *first)
 {
-        s6_gpio_init();
+        s6_gpio_init(0);
         gpio_request(GPIO_LED1_NGREEN, "led1_green");
         gpio_request(GPIO_LED1_RED, "led1_red");
         gpio_direction_output(GPIO_LED1_NGREEN, 1);