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irqchip/alpine-msi: Use irq_domain_add_hierarchy()

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Use the irq_domain_add_hierarchy() helper to create the hierarchical
domain, which both serves as documentation and avoids poking at
irqdomain internals.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Tested-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230213104302.17307-15-johan+linaro@kernel.org
This commit is contained in:
Johan Hovold 2023-02-13 11:42:56 +01:00 committed by Marc Zyngier
parent a14e7fdd43
commit 6c889231e0
1 changed files with 3 additions and 5 deletions
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8
drivers/irqchip/irq-alpine-msi.c
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@ -204,16 +204,14 @@ static int alpine_msix_init_domains(struct alpine_msix_data *priv,
return -ENXIO;
}
middle_domain = irq_domain_add_tree(NULL,
&alpine_msix_middle_domain_ops,
priv);
middle_domain = irq_domain_add_hierarchy(gic_domain, 0, 0, NULL,
&alpine_msix_middle_domain_ops,
priv);
if (!middle_domain) {
pr_err("Failed to create the MSIX middle domain\n");
return -ENOMEM;
}
middle_domain->parent = gic_domain;
msi_domain = pci_msi_create_irq_domain(of_node_to_fwnode(node),
&alpine_msix_domain_info,
middle_domain);