From 61a1da7a08cac258ec7d048d735f61767bb68def Mon Sep 17 00:00:00 2001 From: Huibin Hong Date: Wed, 13 Aug 2025 17:47:44 +0800 Subject: [PATCH] fiq_debugger: fix bug when RT linux is enabled Set debugger irq to IRQF_NO_THREAD, or irq handler calls get_irq_regs(), and return null. Signed-off-by: Huibin Hong Change-Id: Ic61d2bb2d233e74a2028405b80075eefabd0a9a1 --- drivers/soc/rockchip/fiq_debugger/fiq_debugger.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/rockchip/fiq_debugger/fiq_debugger.c b/drivers/soc/rockchip/fiq_debugger/fiq_debugger.c index ae31ffe9b85c..4179d6fec6c6 100644 --- a/drivers/soc/rockchip/fiq_debugger/fiq_debugger.c +++ b/drivers/soc/rockchip/fiq_debugger/fiq_debugger.c @@ -1566,7 +1566,7 @@ static int fiq_debugger_probe(struct platform_device *pdev) pr_err("%s: could not install nmi irq handler\n", __func__); irq_clear_status_flags(state->uart_irq, IRQ_NOAUTOEN); ret = request_irq(state->uart_irq, fiq_debugger_uart_irq, - IRQF_NO_SUSPEND | IRQF_NOBALANCING, "debug", state); + IRQF_NO_SUSPEND | IRQF_NOBALANCING | IRQF_NO_THREAD, "debug", state); } else { enable_nmi(state->uart_irq); }