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ee07675046
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230714174645.4058547-1-robh@kernel.org
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* Copyright (C) 2012 Thomas Petazzoni
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*
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* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/acpi.h>
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#include <linux/init.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/irqchip.h>
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#include <linux/platform_device.h>
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/*
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* This special of_device_id is the sentinel at the end of the
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* of_device_id[] array of all irqchips. It is automatically placed at
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* the end of the array by the linker, thanks to being part of a
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* special section.
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*/
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static const struct of_device_id
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irqchip_of_match_end __used __section("__irqchip_of_table_end");
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extern struct of_device_id __irqchip_of_table[];
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void __init irqchip_init(void)
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{
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of_irq_init(__irqchip_of_table);
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acpi_probe_device_table(irqchip);
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}
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int platform_irqchip_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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struct device_node *par_np = of_irq_find_parent(np);
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of_irq_init_cb_t irq_init_cb = of_device_get_match_data(&pdev->dev);
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if (!irq_init_cb) {
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of_node_put(par_np);
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return -EINVAL;
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}
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if (par_np == np)
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par_np = NULL;
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/*
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* If there's a parent interrupt controller and none of the parent irq
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* domains have been registered, that means the parent interrupt
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* controller has not been initialized yet. it's not time for this
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* interrupt controller to initialize. So, defer probe of this
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* interrupt controller. The actual initialization callback of this
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* interrupt controller can check for specific domains as necessary.
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*/
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if (par_np && !irq_find_matching_host(par_np, DOMAIN_BUS_ANY)) {
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of_node_put(par_np);
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return -EPROBE_DEFER;
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}
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return irq_init_cb(np, par_np);
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}
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EXPORT_SYMBOL_GPL(platform_irqchip_probe);
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