On Mon, 28 Mar 2011, Par-Gunnar Hjalmdahl wrote:
This wants to be split up for review.
> +/**
> + * cts_interrupt() - Called to handle CTS interrupt.
> + * @irq: Interrupt that occurred.
> + * @dev_id: Device ID where interrupt occurred.
> + *
> + * The cts_interrupt() function is called if interrupt on CTS occurred.
> + * It disables the interrupt and starts a new work thread to handle
> + * the interrupt.
> + */
> +static irqreturn_t cts_interrupt(int irq, void *dev_id)
> +{
> + struct uart_info *uart_info = dev_get_drvdata(dev_id);
> +#ifdef CONFIG_PM
> + disable_irq_wake(irq);
> +#endif
> + disable_irq_nosync(irq);
> +
> + /* Create work and leave IRQ context. */
> + (void)create_work_item(uart_info, handle_cts_irq);
> +
> + return IRQ_HANDLED;
> +}
Have you thought about using a threaded interrupt handler? That would
make all this work cruft go away.
Thanks,
tglx
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