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| author |   Nipun Gupta <nipun.gupta@nxp.com> | 2018-04-28 08:21:58 +0530 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2018-05-03 16:22:18 +0200 |
| commit | 07397df29e57cde5799af16e8f148ae10ed75285 (patch) | |
| tree | 7f4e2606ec8d6a26a5433cb4dac32338178092fd /include/linux/platform_device.h | |
| parent | swiotlb: fix inversed DMA_ATTR_NO_WARN test (diff) | |
| download | wireguard-linux-07397df29e57cde5799af16e8f148ae10ed75285.tar.xz wireguard-linux-07397df29e57cde5799af16e8f148ae10ed75285.zip | |
dma-mapping: move dma configuration to bus infrastructure
ACPI/OF support for configuration of DMA is a bus specific aspect, and
thus should be configured by the bus. Introduces a 'dma_configure' bus
method so that busses can control their DMA capabilities.
Also update the PCI, Platform, ACPI and host1x buses to use the new
method.
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # PCI parts
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[hch: simplified host1x_dma_configure based on a comment from Thierry,
rewrote changelog]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/platform_device.h')
| -rw-r--r-- | include/linux/platform_device.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 49f634d96118..3097c943fab9 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -356,6 +356,8 @@ extern int platform_pm_restore(struct device *dev); #define platform_pm_restore NULL #endif +extern int platform_dma_configure(struct device *dev); + #ifdef CONFIG_PM_SLEEP #define USE_PLATFORM_PM_SLEEP_OPS \ .suspend = platform_pm_suspend, \ |