Commit 4d052213 authored by Feng Tang's avatar Feng Tang Committed by Grant Likely

gpio-ml-ioh: Add the irq_disable/irq_enable hooks for ml-ioh irq chip

These hooks will be needed by the general disabl/enable_irq();
Signed-off-by: default avatarFeng Tang <feng.tang@intel.com>
Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent f9ea14ef
......@@ -332,6 +332,34 @@ static void ioh_irq_mask(struct irq_data *d)
&chip->reg->regs[chip->ch].imask);
}
static void ioh_irq_disable(struct irq_data *d)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct ioh_gpio *chip = gc->private;
unsigned long flags;
u32 ien;
spin_lock_irqsave(&chip->spinlock, flags);
ien = ioread32(&chip->reg->regs[chip->ch].ien);
ien &= ~(1 << (d->irq - chip->irq_base));
iowrite32(ien, &chip->reg->regs[chip->ch].ien);
spin_unlock_irqrestore(&chip->spinlock, flags);
}
static void ioh_irq_enable(struct irq_data *d)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct ioh_gpio *chip = gc->private;
unsigned long flags;
u32 ien;
spin_lock_irqsave(&chip->spinlock, flags);
ien = ioread32(&chip->reg->regs[chip->ch].ien);
ien |= 1 << (d->irq - chip->irq_base);
iowrite32(ien, &chip->reg->regs[chip->ch].ien);
spin_unlock_irqrestore(&chip->spinlock, flags);
}
static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
{
struct ioh_gpio *chip = dev_id;
......@@ -370,6 +398,8 @@ static __devinit void ioh_gpio_alloc_generic_chip(struct ioh_gpio *chip,
ct->chip.irq_mask = ioh_irq_mask;
ct->chip.irq_unmask = ioh_irq_unmask;
ct->chip.irq_set_type = ioh_irq_type;
ct->chip.irq_disable = ioh_irq_disable;
ct->chip.irq_enable = ioh_irq_enable;
irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE,
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
......
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