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authorHuacai Chen <chenhuacai@loongson.cn>2022-07-20 18:51:26 +0800
committerMarc Zyngier <maz@kernel.org>2022-07-20 12:09:20 +0100
commitee73f14ee9eb7e1a04051b303b56130c4dd6e048 (patch)
tree7633ad79251285a05fc8ce1c5bb782b4b674938e /arch/loongarch
parentLoongArch: Prepare to support multiple pch-pic and pch-msi irqdomain (diff)
downloadlinux-dev-ee73f14ee9eb7e1a04051b303b56130c4dd6e048.tar.xz
linux-dev-ee73f14ee9eb7e1a04051b303b56130c4dd6e048.zip
irqchip: Add Loongson PCH LPC controller support
PCH-LPC stands for "LPC Interrupts" that described in Section 24.3 of "Loongson 7A1000 Bridge User Manual". For more information please refer Documentation/loongarch/irq-chip-model.rst. Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-8-git-send-email-lvjianmin@loongson.cn
Diffstat (limited to 'arch/loongarch')
-rw-r--r--arch/loongarch/include/asm/irq.h4
-rw-r--r--arch/loongarch/kernel/irq.c1
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/loongarch/include/asm/irq.h b/arch/loongarch/include/asm/irq.h
index a2540d7c533d..76a7b364f58b 100644
--- a/arch/loongarch/include/asm/irq.h
+++ b/arch/loongarch/include/asm/irq.h
@@ -112,7 +112,7 @@ struct irq_domain *eiointc_acpi_init(struct irq_domain *parent,
struct irq_domain *htvec_acpi_init(struct irq_domain *parent,
struct acpi_madt_ht_pic *acpi_htvec);
-struct irq_domain *pch_lpc_acpi_init(struct irq_domain *parent,
+int pch_lpc_acpi_init(struct irq_domain *parent,
struct acpi_madt_lpc_pic *acpi_pchlpc);
struct irq_domain *pch_msi_acpi_init(struct irq_domain *parent,
struct acpi_madt_msi_pic *acpi_pchmsi);
@@ -129,7 +129,7 @@ extern struct acpi_madt_bio_pic *acpi_pchpic[MAX_IO_PICS];
extern struct irq_domain *cpu_domain;
extern struct irq_domain *liointc_domain;
-extern struct irq_domain *pch_lpc_domain;
+extern struct fwnode_handle *pch_lpc_handle;
extern struct irq_domain *pch_msi_domain[MAX_IO_PICS];
extern struct irq_domain *pch_pic_domain[MAX_IO_PICS];
diff --git a/arch/loongarch/kernel/irq.c b/arch/loongarch/kernel/irq.c
index 37dd2dca8221..181504ba7e90 100644
--- a/arch/loongarch/kernel/irq.c
+++ b/arch/loongarch/kernel/irq.c
@@ -27,7 +27,6 @@ EXPORT_PER_CPU_SYMBOL(irq_stat);
struct irq_domain *cpu_domain;
struct irq_domain *liointc_domain;
-struct irq_domain *pch_lpc_domain;
struct irq_domain *pch_msi_domain[MAX_IO_PICS];
struct irq_domain *pch_pic_domain[MAX_IO_PICS];