diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-platdrv.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 879719e91df2..3104f52e32be 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -205,25 +205,28 @@ static void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev) static int dw_i2c_plat_probe(struct platform_device *pdev) { + u32 flags = (uintptr_t)device_get_match_data(&pdev->dev); struct device *device = &pdev->dev; struct i2c_adapter *adap; struct dw_i2c_dev *dev; int irq, ret; - irq = platform_get_irq(pdev, 0); - if (irq < 0) + irq = platform_get_irq_optional(pdev, 0); + if (irq == -ENXIO) + flags |= ACCESS_POLLING; + else if (irq < 0) return irq; dev = devm_kzalloc(device, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; - dev->flags = (uintptr_t)device_get_match_data(device); if (device_property_present(device, "wx,i2c-snps-model")) - dev->flags = MODEL_WANGXUN_SP | ACCESS_POLLING; + flags = MODEL_WANGXUN_SP | ACCESS_POLLING; dev->dev = device; dev->irq = irq; + dev->flags = flags; platform_set_drvdata(pdev, dev); ret = dw_i2c_plat_request_regs(dev); |