diff options
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 8075ddc70a17..638d42e93772 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -1130,6 +1130,22 @@ int platform_pm_restore(struct device *dev) #endif /* CONFIG_HIBERNATE_CALLBACKS */ +int platform_dma_configure(struct device *dev) +{ + enum dev_dma_attr attr; + int ret = 0; + + if (dev->of_node) { + ret = of_dma_configure(dev, dev->of_node); + } else if (has_acpi_companion(dev)) { + attr = acpi_get_dma_attr(to_acpi_device_node(dev->fwnode)); + if (attr != DEV_DMA_NOT_SUPPORTED) + ret = acpi_dma_configure(dev, attr); + } + + return ret; +} + static const struct dev_pm_ops platform_dev_pm_ops = { .runtime_suspend = pm_generic_runtime_suspend, .runtime_resume = pm_generic_runtime_resume, @@ -1141,6 +1157,7 @@ struct bus_type platform_bus_type = { .dev_groups = platform_dev_groups, .match = platform_match, .uevent = platform_uevent, + .dma_configure = platform_dma_configure, .pm = &platform_dev_pm_ops, .force_dma = true, }; |