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authorDavid S. Miller <davem@davemloft.net>2009-02-03 02:55:27 -0500
committerDavid S. Miller <davem@davemloft.net>2009-02-03 02:55:27 -0500
commitfb53fde9762432d091dac209bdf4f3f850117c55 (patch)
tree607b09022b206a539cb4a924e4ef476443798252 /arch/mips/rb532/irq.c
parenteb4400e3a040b90a3ad805b01fcbc99a5f615c8f (diff)
parentb1792e367053968f2ddb48bc911d314143ce6242 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/mips/rb532/irq.c')
-rw-r--r--arch/mips/rb532/irq.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/mips/rb532/irq.c b/arch/mips/rb532/irq.c
index 549b46d2fcee..53eeb5e7bc5b 100644
--- a/arch/mips/rb532/irq.c
+++ b/arch/mips/rb532/irq.c
@@ -46,6 +46,7 @@
46#include <asm/system.h> 46#include <asm/system.h>
47 47
48#include <asm/mach-rc32434/irq.h> 48#include <asm/mach-rc32434/irq.h>
49#include <asm/mach-rc32434/gpio.h>
49 50
50struct intr_group { 51struct intr_group {
51 u32 mask; /* mask of valid bits in pending/mask registers */ 52 u32 mask; /* mask of valid bits in pending/mask registers */
@@ -150,6 +151,9 @@ static void rb532_disable_irq(unsigned int irq_nr)
150 mask |= intr_bit; 151 mask |= intr_bit;
151 WRITE_MASK(addr, mask); 152 WRITE_MASK(addr, mask);
152 153
154 if (group == GPIO_MAPPED_IRQ_GROUP)
155 rb532_gpio_set_istat(0, irq_nr - GPIO_MAPPED_IRQ_BASE);
156
153 /* 157 /*
154 * if there are no more interrupts enabled in this 158 * if there are no more interrupts enabled in this
155 * group, disable corresponding IP 159 * group, disable corresponding IP
@@ -165,12 +169,35 @@ static void rb532_mask_and_ack_irq(unsigned int irq_nr)
165 ack_local_irq(group_to_ip(irq_to_group(irq_nr))); 169 ack_local_irq(group_to_ip(irq_to_group(irq_nr)));
166} 170}
167 171
172static int rb532_set_type(unsigned int irq_nr, unsigned type)
173{
174 int gpio = irq_nr - GPIO_MAPPED_IRQ_BASE;
175 int group = irq_to_group(irq_nr);
176
177 if (group != GPIO_MAPPED_IRQ_GROUP)
178 return (type == IRQ_TYPE_LEVEL_HIGH) ? 0 : -EINVAL;
179
180 switch (type) {
181 case IRQ_TYPE_LEVEL_HIGH:
182 rb532_gpio_set_ilevel(1, gpio);
183 break;
184 case IRQ_TYPE_LEVEL_LOW:
185 rb532_gpio_set_ilevel(0, gpio);
186 break;
187 default:
188 return -EINVAL;
189 }
190
191 return 0;
192}
193
168static struct irq_chip rc32434_irq_type = { 194static struct irq_chip rc32434_irq_type = {
169 .name = "RB532", 195 .name = "RB532",
170 .ack = rb532_disable_irq, 196 .ack = rb532_disable_irq,
171 .mask = rb532_disable_irq, 197 .mask = rb532_disable_irq,
172 .mask_ack = rb532_mask_and_ack_irq, 198 .mask_ack = rb532_mask_and_ack_irq,
173 .unmask = rb532_enable_irq, 199 .unmask = rb532_enable_irq,
200 .set_type = rb532_set_type,
174}; 201};
175 202
176void __init arch_init_irq(void) 203void __init arch_init_irq(void)