diff options
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 1c958eb33ef4..4e45ac21d672 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -127,7 +127,20 @@ int platform_get_irq(struct platform_device *dev, unsigned int num) irqd_set_trigger_type(irqd, r->flags & IORESOURCE_BITS); } - return r ? r->start : -ENXIO; + if (r) + return r->start; + + /* + * For the index 0 interrupt, allow falling back to GpioInt + * resources. While a device could have both Interrupt and GpioInt + * resources, making this fallback ambiguous, in many common cases + * the device will only expose one IRQ, and this fallback + * allows a common code path across either kind of resource. + */ + if (num == 0 && has_acpi_companion(&dev->dev)) + return acpi_dev_gpio_irq_get(ACPI_COMPANION(&dev->dev), num); + + return -ENXIO; #endif } EXPORT_SYMBOL_GPL(platform_get_irq); @@ -508,10 +521,12 @@ struct platform_device *platform_device_register_full( pdev = platform_device_alloc(pdevinfo->name, pdevinfo->id); if (!pdev) - goto err_alloc; + return ERR_PTR(-ENOMEM); pdev->dev.parent = pdevinfo->parent; pdev->dev.fwnode = pdevinfo->fwnode; + pdev->dev.of_node = of_node_get(to_of_node(pdev->dev.fwnode)); + pdev->dev.of_node_reused = pdevinfo->of_node_reused; if (pdevinfo->dma_mask) { /* @@ -553,8 +568,6 @@ struct platform_device *platform_device_register_full( err: ACPI_COMPANION_SET(&pdev->dev, NULL); kfree(pdev->dev.dma_mask); - -err_alloc: platform_device_put(pdev); return ERR_PTR(ret); } |