forked from rrcarlosr/Jetpack
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
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From acf8828acb4aedd612148f27c75a0d5de4497c4c Mon Sep 17 00:00:00 2001
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From: Sumit Gupta <sumitg@nvidia.com>
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Date: Mon, 14 Oct 2019 18:27:33 +0530
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Subject: [PATCH 354/354] irq: tegra: add IRQF_NO_THREAD flag for doorbell
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X-NVConfidentiality: public
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Doorbell irq's are used for communication with BPMP.
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Adding IRQF_NO_THREAD flag in request_irq() for doorbell
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interrupts to prevent converting irq hanlder to thread.
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Converting to thread was causing crash as kthread is not
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available during early kernel init.
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Bug 200511477
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Change-Id: Id927221ce9dd601ef5127f886f07eb34dfc27763
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Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
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---
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drivers/irqchip/irq-tegra.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/drivers/irqchip/irq-tegra.c b/drivers/irqchip/irq-tegra.c
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index 2311084..0e5f4fa 100644
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--- a/drivers/irqchip/irq-tegra.c
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+++ b/drivers/irqchip/irq-tegra.c
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@@ -515,8 +515,8 @@ static int __init tegra_ictlr_init(struct device_node *node,
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break;
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doorbells[idx].hwirq = irq_to_desc(irq)->irq_data.hwirq - 32;
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- err = request_irq(doorbells[idx].irq, doorbell_handler, 0,
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- "doorbell", &doorbells[idx]);
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+ err = request_irq(doorbells[idx].irq, doorbell_handler,
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+ IRQF_NO_THREAD, "doorbell", &doorbells[idx]);
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if (err < 0) {
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pr_err("doorbell %d irq %d request failure\n",
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idx, irq);
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--
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2.7.4
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