From: Geert Uytterhoeven Date: Tue, 6 Jan 2015 13:39:10 +0000 (+0100) Subject: ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances X-Git-Tag: v3.16.35~3025 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=95b2a6274438e45225324390375c92f54f415c7d;p=thirdparty%2Fkernel%2Fstable.git ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances commit b0ddb319db3d7a1943445f0de0a45c07a7f3457a upstream. 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 Signed-off-by: Luis Henriques --- diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index ad00724a2269f..f8584664369a8 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -576,6 +576,7 @@ 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[] = { @@ -637,6 +638,7 @@ 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[] = { @@ -667,6 +669,7 @@ 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[] = {