linux-kernel - [PATCH 4.19 157/361] irqchip/pdc: Setup all edge interrupts as rising edge at GIC

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Date:   Sun, 11 Nov 2018 14:18:24 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Evan Green <evgreen@...omium.org>,
        Lina Iyer <ilina@...eaurora.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 157/361] irqchip/pdc: Setup all edge interrupts as rising edge at GIC

4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lina Iyer <ilina@...eaurora.org>

[ Upstream commit 7bae48b22c8d38c5cd50f52b6e15d134e2bb3935 ]

The PDC irqchp can convert a falling edge or level low interrupt to a
rising edge or level high interrupt at the GIC. We just need to setup
the GIC correctly. Set up the interrupt type for the IRQ_TYPE_EDGE_BOTH
as IRQ_TYPE_EDGE_RISING at the GIC.

Fixes: f55c73aef890 ("irqchip/pdc: Add PDC interrupt controller for QCOM SoCs")
Reported-by: Evan Green <evgreen@...omium.org>
Reviewed-by: Evan Green <evgreen@...omium.org>
Signed-off-by: Lina Iyer <ilina@...eaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/irqchip/qcom-pdc.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/irqchip/qcom-pdc.c
+++ b/drivers/irqchip/qcom-pdc.c
@@ -124,6 +124,7 @@ static int qcom_pdc_gic_set_type(struct
 		break;
 	case IRQ_TYPE_EDGE_BOTH:
 		pdc_type = PDC_EDGE_DUAL;
+		type = IRQ_TYPE_EDGE_RISING;
 		break;
 	case IRQ_TYPE_LEVEL_HIGH:
 		pdc_type = PDC_LEVEL_HIGH;