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x86/hpet: Use irq_find_matching_fwspec() to find remapping irqdomain

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All possible parent domains have a select method now. Make use of it.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201024213535.443185-28-dwmw2@infradead.org
This commit is contained in:
David Woodhouse 2020-10-24 22:35:27 +01:00 committed by Thomas Gleixner
parent a491bb19f7
commit c2a5881c28
1 changed files with 14 additions and 10 deletions
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24
arch/x86/kernel/hpet.c
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@ -543,8 +543,8 @@ static struct irq_domain *hpet_create_irq_domain(int hpet_id)
{
struct msi_domain_info *domain_info;
struct irq_domain *parent, *d;
struct irq_alloc_info info;
struct fwnode_handle *fn;
struct irq_fwspec fwspec;
if (x86_vector_domain == NULL)
return NULL;
@ -556,15 +556,6 @@ static struct irq_domain *hpet_create_irq_domain(int hpet_id)
*domain_info = hpet_msi_domain_info;
domain_info->data = (void *)(long)hpet_id;
init_irq_alloc_info(&info, NULL);
info.type = X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT;
info.devid = hpet_id;
parent = irq_remapping_get_irq_domain(&info);
if (parent == NULL)
parent = x86_vector_domain;
else
hpet_msi_controller.name = "IR-HPET-MSI";
fn = irq_domain_alloc_named_id_fwnode(hpet_msi_controller.name,
hpet_id);
if (!fn) {
@ -572,6 +563,19 @@ static struct irq_domain *hpet_create_irq_domain(int hpet_id)
return NULL;
}
fwspec.fwnode = fn;
fwspec.param_count = 1;
fwspec.param[0] = hpet_id;
parent = irq_find_matching_fwspec(&fwspec, DOMAIN_BUS_ANY);
if (!parent) {
irq_domain_free_fwnode(fn);
kfree(domain_info);
return NULL;
}
if (parent != x86_vector_domain)
hpet_msi_controller.name = "IR-HPET-MSI";
d = msi_create_irq_domain(fn, domain_info, parent);
if (!d) {
irq_domain_free_fwnode(fn);