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Edge-triggered mode and level-triggered mode need different handlers,
and edge-triggered mode need a specific ack operation. So improve it.
Fixes: ef8c01eb64ca6719da449dab0 ("irqchip: Add Loongson PCH PIC controller")
Signed-off-by: Chen Zhu <zhuchen@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210805132216.3539007-1-chenhuacai@loongson.cn
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Fix ~36 single-word typos in the IRQ, irqchip and irqdomain code comments.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Loongson PCH PIC is a standard level triggered PIC, and it need to clear
interrupt during unmask.
Fixes: ef8c01eb64ca6719da449dab0 ("irqchip: Add Loongson PCH PIC controller")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://lore.kernel.org/r/1596099090-23516-6-git-send-email-chenhc@lemote.com
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Check the return value of irq_domain_translate_twocell() due to
it may returns -EINVAL if failed and use variable fwspec for it,
and then use a new variable parent_fwspec which is proper for
irq_domain_alloc_irqs_parent().
Fixes: ef8c01eb64ca ("irqchip: Add Loongson PCH PIC controller")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1594087972-21715-6-git-send-email-yangtiezhu@loongson.cn
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This controller appears on Loongson LS7A family of PCH to transform
interrupts from devices into HyperTransport vectorized interrrupts
and send them to procrssor's HT vector controller.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200528152757.1028711-4-jiaxun.yang@flygoat.com
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