On Wed, Jan 27, 2010 at 11:32:27AM -0800, adharmap@xxxxxxxxxxxxxx wrote:
> + if (irq > 1020)
> + return -1;
*unprintable*. Always use proper error codes.
> +
> + /*
> + * Two bits each, calc the register and bit, 16 per 32 bit register
> + * accessible long word only
> + * But the field is NxN 1xN and rising/falling
> + */
> + register_index = (irq/16)<<2;
> + bit_index = (irq & 0xF)<<1;
> +
> + spin_lock(&irq_controller_lock);
> + reg_value = readl(gic_dist_base(irq) + GIC_DIST_CONFIG +
> + register_index);
> + /*
> + * keep the nxn and 1xn , mask the edge level
> + * Edge is 1, level 0
> + */
> + reg_value = (reg_value & ~(2<<bit_index));
> + if (flow_type & (IRQ_TYPE_EDGE_RISING|IRQ_TYPE_EDGE_FALLING)) {
> + reg_value |= (2<<bit_index);
> + writel(reg_value, gic_dist_base(irq) + GIC_DIST_CONFIG
> + + register_index);
> + __set_irq_handler_unlocked(irq, handle_edge_irq);
> + }
> +
> + if (flow_type & (IRQ_TYPE_LEVEL_HIGH|IRQ_TYPE_LEVEL_LOW)) {
> + writel(reg_value, gic_dist_base(irq) + GIC_DIST_CONFIG
> + + register_index);
> + __set_irq_handler_unlocked(irq, handle_level_irq);
> + }
This needs to exclude the first 32 interrupts, where the interrupt
configuration is either read-only or banked between multiprocessor
CPUs.
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
