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authorNipun Gupta <nipun.gupta@nxp.com>2018-04-28 05:51:58 +0300
committerChristoph Hellwig <hch@lst.de>2018-05-03 17:22:18 +0300
commit07397df29e57cde5799af16e8f148ae10ed75285 (patch)
tree7f4e2606ec8d6a26a5433cb4dac32338178092fd /include/linux/platform_device.h
parent892a0be43edd63e1cd228af3453a064e9e94f08e (diff)
downloadlinux-07397df29e57cde5799af16e8f148ae10ed75285.tar.xz
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.h2
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, \