On 12/18/2013 07:44 PM, Dmitry Torokhov wrote:

On Wed, Dec 18, 2013 at 02:51:14PM +0530, Roger Quadros wrote:

quoted

+
+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:

Agreed, no need to call disable_irq().

	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.

OK.

cheers,
-roger