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Diffstat (limited to 'arch/sh/boards/mach-se/7722/irq.c')
-rw-r--r--arch/sh/boards/mach-se/7722/irq.c32
1 files changed, 19 insertions, 13 deletions
diff --git a/arch/sh/boards/mach-se/7722/irq.c b/arch/sh/boards/mach-se/7722/irq.c
index 02d21a3e2a8f..4eb31acfafef 100644
--- a/arch/sh/boards/mach-se/7722/irq.c
+++ b/arch/sh/boards/mach-se/7722/irq.c
@@ -16,15 +16,17 @@
#include <asm/io.h>
#include <mach-se/mach/se7722.h>
+unsigned int se7722_fpga_irq[SE7722_FPGA_IRQ_NR] = { 0, };
+
static void disable_se7722_irq(unsigned int irq)
{
- unsigned int bit = irq - SE7722_FPGA_IRQ_BASE;
+ unsigned int bit = (unsigned int)get_irq_chip_data(irq);
ctrl_outw(ctrl_inw(IRQ01_MASK) | 1 << bit, IRQ01_MASK);
}
static void enable_se7722_irq(unsigned int irq)
{
- unsigned int bit = irq - SE7722_FPGA_IRQ_BASE;
+ unsigned int bit = (unsigned int)get_irq_chip_data(irq);
ctrl_outw(ctrl_inw(IRQ01_MASK) & ~(1 << bit), IRQ01_MASK);
}
@@ -38,18 +40,15 @@ static struct irq_chip se7722_irq_chip __read_mostly = {
static void se7722_irq_demux(unsigned int irq, struct irq_desc *desc)
{
unsigned short intv = ctrl_inw(IRQ01_STS);
- struct irq_desc *ext_desc;
- unsigned int ext_irq = SE7722_FPGA_IRQ_BASE;
+ unsigned int ext_irq = 0;
intv &= (1 << SE7722_FPGA_IRQ_NR) - 1;
- while (intv) {
- if (intv & 1) {
- ext_desc = irq_desc + ext_irq;
- handle_level_irq(ext_irq, ext_desc);
- }
- intv >>= 1;
- ext_irq++;
+ for (; intv; intv >>= 1, ext_irq++) {
+ if (!(intv & 1))
+ continue;
+
+ generic_handle_irq(se7722_fpga_irq[ext_irq]);
}
}
@@ -63,11 +62,18 @@ void __init init_se7722_IRQ(void)
ctrl_outw(0, IRQ01_MASK); /* disable all irqs */
ctrl_outw(0x2000, 0xb03fffec); /* mrshpc irq enable */
- for (i = 0; i < SE7722_FPGA_IRQ_NR; i++)
- set_irq_chip_and_handler_name(SE7722_FPGA_IRQ_BASE + i,
+ for (i = 0; i < SE7722_FPGA_IRQ_NR; i++) {
+ se7722_fpga_irq[i] = create_irq();
+ if (se7722_fpga_irq[i] < 0)
+ return;
+
+ set_irq_chip_and_handler_name(se7722_fpga_irq[i],
&se7722_irq_chip,
handle_level_irq, "level");
+ set_irq_chip_data(se7722_fpga_irq[i], (void *)i);
+ }
+
set_irq_chained_handler(IRQ0_IRQ, se7722_irq_demux);
set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);