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From:   Jiaxun Yang <jiaxun.yang@flygoat.com>
To:     linux-mips@vger.kernel.org
Cc:     chenhc@lemote.com, paul.burton@mips.com, tglx@linutronix.de,
        jason@lakedaemon.net, maz@kernel.org, linux-kernel@vger.kernel.org,
        robh+dt@kernel.org, mark.rutland@arm.co,
        devicetree@vger.kernel.org, Jiaxun Yang <jiaxun.yang@flygoat.com>
Subject: [PATCH v1 10/18] irqchip: mips-cpu: Convert to simple domain
Date:   Fri, 30 Aug 2019 12:32:24 +0800
Message-Id: <20190830043232.20191-5-jiaxun.yang@flygoat.com>
In-Reply-To: <20190830043232.20191-1-jiaxun.yang@flygoat.com>
References: <20190830043232.20191-1-jiaxun.yang@flygoat.com>
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The old code is using legacy domain to setup irq_domain for CPU interrupts
which requires irq_desc being preallocated.

However, when MIPS_CPU_IRQ_BASE >= 16, irq_desc for CPU IRQs may end up
unallocated and lead to incorrect behavior.

Thus we convert the legacy domain to simple domain which can allocate irq_desc
during initialization.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 drivers/irqchip/irq-mips-cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-mips-cpu.c b/drivers/irqchip/irq-mips-cpu.c
index 95d4fd8f7a96..c3cf7fa76424 100644
--- a/drivers/irqchip/irq-mips-cpu.c
+++ b/drivers/irqchip/irq-mips-cpu.c
@@ -251,7 +251,7 @@ static void __init __mips_cpu_irq_init(struct device_node *of_node)
 	clear_c0_status(ST0_IM);
 	clear_c0_cause(CAUSEF_IP);
 
-	irq_domain = irq_domain_add_legacy(of_node, 8, MIPS_CPU_IRQ_BASE, 0,
+	irq_domain = irq_domain_add_simple(of_node, 8, MIPS_CPU_IRQ_BASE,
 					   &mips_cpu_intc_irq_domain_ops,
 					   NULL);
 	if (!irq_domain)
-- 
2.22.0