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irqchip: Make irqchip_init() usable on pure ACPI systems

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Pure ACPI systems (e.g., LoongArch) do not need OF_IRQ, but still
require irqchip_init() to perform the ACPI irqchip probing,
even when OF_IRQ isn't selected.

Relax the dependency to enable the generic irqchip support when
ACPI_GENERIC_GSI is configured.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
[maz: revamped commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220927124557.3246737-1-chenhuacai@loongson.cn
This commit is contained in:
Huacai Chen 2022-09-27 20:45:57 +08:00 committed by Marc Zyngier
parent b90cb10531
commit 612d5494ae
2 changed files with 5 additions and 3 deletions
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2
drivers/irqchip/Kconfig
View File

@ -3,7 +3,7 @@ menu "IRQ chip support"
config IRQCHIP
def_bool y
depends on OF_IRQ
depends on (OF_IRQ || ACPI_GENERIC_GSI)
config ARM_GIC
bool

6
include/linux/of_irq.h
View File

@ -37,9 +37,8 @@ extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
extern int of_irq_to_resource(struct device_node *dev, int index,
struct resource *r);
extern void of_irq_init(const struct of_device_id *matches);
#ifdef CONFIG_OF_IRQ
extern void of_irq_init(const struct of_device_id *matches);
extern int of_irq_parse_one(struct device_node *device, int index,
struct of_phandle_args *out_irq);
extern int of_irq_count(struct device_node *dev);
@ -57,6 +56,9 @@ extern struct irq_domain *of_msi_map_get_device_domain(struct device *dev,
extern void of_msi_configure(struct device *dev, struct device_node *np);
u32 of_msi_map_id(struct device *dev, struct device_node *msi_np, u32 id_in);
#else
static inline void of_irq_init(const struct of_device_id *matches)
{
}
static inline int of_irq_parse_one(struct device_node *device, int index,
struct of_phandle_args *out_irq)
{