Re: [PATCH 3/9] Input: pixcir_i2c_ts: Initialize interrupt mode and power mode

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Wed, Dec 18, 2013 at 02:51:14PM +0530, Roger Quadros wrote:
> +
> +static int pixcir_stop(struct pixcir_i2c_ts_data *ts)
> +{
> +	struct device *dev = &ts->client->dev;
> +	int ret;
> +
> +	/* disable interrupt generation */
> +	ret = pixcir_int_enable(ts, 0);
> +	if (ret) {
> +		dev_err(dev, "Failed to disable interrupt generation\n");
> +		return ret;
> +	}
> +
> +	disable_irq(ts->client->irq);

Why do you need to disable IRQ? If you disable interrupt generation in
the chip I think you only need to call synchronize_irq() to make sure
it's completed if it happens to be running. Also you need to move the
code:

	tsdata->exiting = true;
	mb();

here from pixcir_i2c_ts_remove() to make sure handler exits promptly.

You will also need to reset tsdata->exiting in your start method.

Thanks.

-- 
Dmitry