[PATCH 01/12] i2c: pxa: keep i2c irq ON in suspend

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Leilei Shang <shangll@xxxxxxxxxxx>

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: Raul Xiong <xjian@xxxxxxxxxxx>
Signed-off-by: Xiaofan Tian <tianxf@xxxxxxxxxxx>
[vaibhav.hiremath@xxxxxxxxxx: updated Changelog]
Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@xxxxxxxxxx>
Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx>

Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@xxxxxxxxxx>
---
 drivers/i2c/busses/i2c-pxa.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index d9c0d6a..f4ac8c5 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/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;
 	}
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-i2c" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux GPIO]     [Linux SPI]     [Linux Hardward Monitoring]     [LM Sensors]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux