39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
|
From 535f6789ef3fdfc1b0752e5779d8a8b1934fec9d Mon Sep 17 00:00:00 2001
|
||
|
|
From: Sumit Gupta <sumitg@nvidia.com>
|
||
|
|
Date: Mon, 14 Oct 2019 18:27:33 +0530
|
||
|
|
Subject: [PATCH 368/371] irq: tegra: add IRQF_NO_THREAD flag for doorbell
|
||
|
|
X-NVConfidentiality: public
|
||
|
|
|
||
|
|
Doorbell irq's are used for communication with BPMP.
|
||
|
|
Adding IRQF_NO_THREAD flag in request_irq() for doorbell
|
||
|
|
interrupts to prevent converting irq hanlder to thread.
|
||
|
|
Converting to thread was causing crash as kthread is not
|
||
|
|
available during early kernel init.
|
||
|
|
|
||
|
|
Bug 200511477
|
||
|
|
|
||
|
|
Change-Id: Id927221ce9dd601ef5127f886f07eb34dfc27763
|
||
|
|
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
|
||
|
|
---
|
||
|
|
drivers/irqchip/irq-tegra.c | 4 ++--
|
||
|
|
1 file changed, 2 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/drivers/irqchip/irq-tegra.c b/drivers/irqchip/irq-tegra.c
|
||
|
|
index 2311084..0e5f4fa 100644
|
||
|
|
--- a/drivers/irqchip/irq-tegra.c
|
||
|
|
+++ b/drivers/irqchip/irq-tegra.c
|
||
|
|
@@ -515,8 +515,8 @@ static int __init tegra_ictlr_init(struct device_node *node,
|
||
|
|
break;
|
||
|
|
|
||
|
|
doorbells[idx].hwirq = irq_to_desc(irq)->irq_data.hwirq - 32;
|
||
|
|
- err = request_irq(doorbells[idx].irq, doorbell_handler, 0,
|
||
|
|
- "doorbell", &doorbells[idx]);
|
||
|
|
+ err = request_irq(doorbells[idx].irq, doorbell_handler,
|
||
|
|
+ IRQF_NO_THREAD, "doorbell", &doorbells[idx]);
|
||
|
|
if (err < 0) {
|
||
|
|
pr_err("doorbell %d irq %d request failure\n",
|
||
|
|
idx, irq);
|
||
|
|
--
|
||
|
|
2.7.4
|
||
|
|
|