i2c: pxa: keep i2c irq ON in suspend

During suspend there may still be some i2c access happening, as the
interrupt is shared between multiple drivers.
And if we don't keep i2c irq ON, there may be i2c access timeout if
i2c is in irq mode of operation.
Signed-off-by: NRaul Xiong <xjian@marvell.com>
Signed-off-by: NXiaofan Tian <tianxf@marvell.com>
[vaibhav.hiremath@linaro.org: updated Changelog]
Signed-off-by: NVaibhav Hiremath <vaibhav.hiremath@linaro.org>
Cc: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-pxa.c

@@ -1232,8 +1232,9 @@ static int i2c_pxa_probe(struct platform_device *dev)
 		i2c->adap.algo = &i2c_pxa_pio_algorithm;
 	} else {
 		i2c->adap.algo = &i2c_pxa_algorithm;
-		ret = request_irq(irq, i2c_pxa_handler, IRQF_SHARED,
-				  dev_name(&dev->dev), i2c);
+		ret = request_irq(irq, i2c_pxa_handler,
+				IRQF_SHARED | IRQF_NO_SUSPEND,
+				dev_name(&dev->dev), i2c);
 		if (ret)
 			goto ereqirq;
 	}