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powerpc/mpc52xx: Properly update irq_desc when set_type() is called.

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The MPC5200 PIC driver doesn't correctly update the .status field of
the irq_desc structure when the set_type hook is called.  This patch
adds the required code.

Also cleans up the external IRQ typename field to be something easier
to read (very minor).

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Grant Likely 2009-01-09 15:49:05 -07:00
parent 23faf63123
commit d30239a0ef
1 changed files with 7 additions and 1 deletions
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8
arch/powerpc/platforms/52xx/mpc52xx_pic.c
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@ -196,6 +196,7 @@ static void mpc52xx_extirq_ack(unsigned int virq)
static int mpc52xx_extirq_set_type(unsigned int virq, unsigned int flow_type)
{
struct irq_desc *desc = get_irq_desc(virq);
u32 ctrl_reg, type;
int irq;
int l2irq;
@ -222,6 +223,11 @@ static int mpc52xx_extirq_set_type(unsigned int virq, unsigned int flow_type)
type = 0;
}
desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
if (flow_type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
desc->status |= IRQ_LEVEL;
ctrl_reg = in_be32(&intr->ctrl);
ctrl_reg &= ~(0x3 << (22 - (l2irq * 2)));
ctrl_reg |= (type << (22 - (l2irq * 2)));
@ -231,7 +237,7 @@ static int mpc52xx_extirq_set_type(unsigned int virq, unsigned int flow_type)
}
static struct irq_chip mpc52xx_extirq_irqchip = {
.typename = " MPC52xx IRQ[0-3] ",
.typename = "MPC52xx External",
.mask = mpc52xx_extirq_mask,
.unmask = mpc52xx_extirq_unmask,
.ack = mpc52xx_extirq_ack,