Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dmaengine: of_dma: Add devm_of_dma_controller_register()
Add a managed API, devm_of_dma_controller_register(), to simplify DMA
engine controller registration by automatically handling resource
cleanup.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260225-mxsdma-module-v3-1-8f798b13baa6@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
authored by
Frank Li
and committed by
Vinod Koul
3a005126
65ca1121
+29
+29
include/linux/of_dma.h
+29
include/linux/of_dma.h
···
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void *data);
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extern void of_dma_controller_free(struct device_node *np);
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static void __of_dma_controller_free(void *np)
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{
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of_dma_controller_free(np);
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}
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static inline int
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devm_of_dma_controller_register(struct device *dev, struct device_node *np,
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struct dma_chan *(*of_dma_xlate)
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(struct of_phandle_args *, struct of_dma *),
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void *data)
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{
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int ret;
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ret = of_dma_controller_register(np, of_dma_xlate, data);
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if (ret)
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return ret;
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return devm_add_action_or_reset(dev, __of_dma_controller_free, np);
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}
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extern int of_dma_router_register(struct device_node *np,
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void *(*of_dma_route_allocate)
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(struct of_phandle_args *, struct of_dma *),
···
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static inline void of_dma_controller_free(struct device_node *np)
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{
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}
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static inline int
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devm_of_dma_controller_register(struct device *dev, struct device_node *np,
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struct dma_chan *(*of_dma_xlate)
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(struct of_phandle_args *, struct of_dma *),
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void *data)
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{
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return -ENODEV;
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}
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static inline int of_dma_router_register(struct device_node *np,