88 	u8 edge, dctr;  in vt8500_irq_mask()  local
98 		dctr = readb(base + VT8500_ICDC + d->hwirq);  in vt8500_irq_mask()
99 		dctr &= ~VT8500_INT_ENABLE;  in vt8500_irq_mask()
100 		writeb(dctr, base + VT8500_ICDC + d->hwirq);  in vt8500_irq_mask()
108 	u8 dctr;  in vt8500_irq_unmask()  local
110 	dctr = readb(base + VT8500_ICDC + d->hwirq);  in vt8500_irq_unmask()
111 	dctr |= VT8500_INT_ENABLE;  in vt8500_irq_unmask()
112 	writeb(dctr, base + VT8500_ICDC + d->hwirq);  in vt8500_irq_unmask()
119 	u8 dctr;  in vt8500_irq_set_type()  local
121 	dctr = readb(base + VT8500_ICDC + d->hwirq);  in vt8500_irq_set_type()
122 	dctr &= ~VT8500_EDGE;  in vt8500_irq_set_type()
128 		dctr |= VT8500_TRIGGER_HIGH;  in vt8500_irq_set_type()
132 		dctr |= VT8500_TRIGGER_FALLING;  in vt8500_irq_set_type()
136 		dctr |= VT8500_TRIGGER_RISING;  in vt8500_irq_set_type()
140 	writeb(dctr, base + VT8500_ICDC + d->hwirq);  in vt8500_irq_set_type()