From b0ddb319db3d7a1943445f0de0a45c07a7f3457a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 6 Jan 2015 14:39:10 +0100 Subject: [PATCH] ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances The sh73a0 INTC can't mask interrupts properly most likely due to a hardware bug. Set the .control_parent flag to delegate masking to the parent interrupt controller, like was already done for irqpin1. Without this, accessing the three-axis digital accelerometer ADXL345 on kzm9g through /dev/input/event1 causes an interrupt storm, which requires a power-cycle to recover from. This was inspired by a patch for arch/arm/boot/dts/sh73a0.dtsi from Laurent Pinchart . Signed-off-by: Geert Uytterhoeven Fixes: 341eb5465f67437a ("ARM: shmobile: INTC External IRQ pin driver on sh73a0") Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/setup-sh73a0.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index fa7cab820ab9..b5d0cf579c61 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -579,6 +579,7 @@ static struct platform_device ipmmu_device = { static struct renesas_intc_irqpin_config irqpin0_platform_data = { .irq_base = irq_pin(0), /* IRQ0 -> IRQ7 */ + .control_parent = true, }; static struct resource irqpin0_resources[] = { @@ -640,6 +641,7 @@ static struct platform_device irqpin1_device = { static struct renesas_intc_irqpin_config irqpin2_platform_data = { .irq_base = irq_pin(16), /* IRQ16 -> IRQ23 */ + .control_parent = true, }; static struct resource irqpin2_resources[] = { @@ -670,6 +672,7 @@ static struct platform_device irqpin2_device = { static struct renesas_intc_irqpin_config irqpin3_platform_data = { .irq_base = irq_pin(24), /* IRQ24 -> IRQ31 */ + .control_parent = true, }; static struct resource irqpin3_resources[] = { -- 2.20.1