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39 lines
1.2 KiB
Diff
39 lines
1.2 KiB
Diff
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From 3bb5880ab3dd31f75c07c3c33bf29c5d469b28f3 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Thu, 18 Jan 2024 15:41:21 +0000
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Subject: [PATCH] fixup! irqchip: irq-bcm2712-mip: Support for 2712's MIP
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Use irq_domain_add_hierarchy so that the root pointer is initialised
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correctly. Failure to do so leads to (at least) lockdep warnings when
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they are enabled.
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See: https://github.com/raspberrypi/linux/issues/5866
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/irqchip/irq-bcm2712-mip.c | 8 +++-----
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1 file changed, 3 insertions(+), 5 deletions(-)
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--- a/drivers/irqchip/irq-bcm2712-mip.c
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+++ b/drivers/irqchip/irq-bcm2712-mip.c
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@@ -209,16 +209,14 @@ static int mip_init_domains(struct mip_p
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return -ENXIO;
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}
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- middle_domain = irq_domain_add_tree(NULL,
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- &mip_irq_domain_ops,
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- priv);
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+ middle_domain = irq_domain_add_hierarchy(gic_domain, 0, 0, NULL,
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+ &mip_irq_domain_ops,
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+ priv);
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if (!middle_domain) {
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pr_err("Failed to create the MIP middle domain\n");
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return -ENOMEM;
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}
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- middle_domain->parent = gic_domain;
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-
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msi_domain = pci_msi_create_irq_domain(of_node_to_fwnode(node),
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&mip_msi_domain_info,
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middle_domain);
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