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authorJarkko Nikula2015-08-31 17:31:29 +0300
committerWolfram Sang2015-10-15 14:07:38 +0200
commitb9f84adcb834ec2b1fd0ec91676c4b165daf51e6 (patch)
treead2fad95fd7cb1edec2b1ea8b6f9c64db57ce155 /drivers/i2c
parentc335631a68db4b32b24cb59814c485c45f0f4506 (diff)
i2c: designware: Disable interrupts before requesting PCI device interrupt
Device must not generate interrupts before registering the interrupt handler so move i2c_dw_disable_int() before requesting it. There are no known issues with this. The code has been here since commit fe20ff5c7e9c ("i2c-designware: Add support for Designware core behind PCI devices."). Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-designware-pcidrv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index e477dddcdae5..d9e8937f062f 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -260,6 +260,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
snprintf(adap->name, sizeof(adap->name), "i2c-designware-pci");
+ i2c_dw_disable_int(dev);
r = devm_request_irq(&pdev->dev, pdev->irq, i2c_dw_isr,
IRQF_SHARED | IRQF_COND_SUSPEND, adap->name, dev);
if (r) {
@@ -267,7 +268,6 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
return r;
}
- i2c_dw_disable_int(dev);
r = i2c_add_numbered_adapter(adap);
if (r) {
dev_err(&pdev->dev, "failure adding adapter\n");