fpga: region: add fpga_region_class_find
Add a function for searching the fpga-region class. This will be useful when device tree code is no longer in the same file that declares the fpga-region class. Another step in separating common FPGA region code from device tree support. Signed-off-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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52a3a7ccce
Коммит
503d4b7a44
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@ -30,6 +30,20 @@
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static DEFINE_IDA(fpga_region_ida);
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static struct class *fpga_region_class;
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struct fpga_region *fpga_region_class_find(
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struct device *start, const void *data,
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int (*match)(struct device *, const void *))
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{
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struct device *dev;
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dev = class_find_device(fpga_region_class, start, data, match);
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if (!dev)
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return NULL;
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return to_fpga_region(dev);
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}
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EXPORT_SYMBOL_GPL(fpga_region_class_find);
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static const struct of_device_id fpga_region_of_match[] = {
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{ .compatible = "fpga-region", },
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{},
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@ -51,14 +65,7 @@ static int fpga_region_of_node_match(struct device *dev, const void *data)
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*/
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static struct fpga_region *of_fpga_region_find(struct device_node *np)
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{
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struct device *dev;
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dev = class_find_device(fpga_region_class, NULL, np,
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fpga_region_of_node_match);
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if (!dev)
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return NULL;
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return to_fpga_region(dev);
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return fpga_region_class_find(NULL, np, fpga_region_of_node_match);
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}
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/**
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@ -27,8 +27,11 @@ struct fpga_region {
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#define to_fpga_region(d) container_of(d, struct fpga_region, dev)
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int fpga_region_program_fpga(struct fpga_region *region);
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struct fpga_region *fpga_region_class_find(
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struct device *start, const void *data,
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int (*match)(struct device *, const void *));
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int fpga_region_program_fpga(struct fpga_region *region);
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int fpga_region_register(struct device *dev, struct fpga_region *region);
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int fpga_region_unregister(struct fpga_region *region);
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