Re: [PATCH v3 3/4] ARM: mvebu: Allow using the GIC for wakeup in standby mode
From: Gregory CLEMENT <hidden>
Date: 2015-07-28 09:41:58
Also in:
linux-arm-kernel, lkml
Hi, On 03/07/2015 13:55, Gregory CLEMENT wrote:
On the Armada 375/38x/39x SoCs, in standby mode the SoCs stay powered and it is possible to wake-up from any interrupt sources. This patch adds flag to the GIC irqchip driver to let linux know this. Signed-off-by: Gregory CLEMENT <redacted>
I eventually remove this patch, as now these two flags are part of the GIC driver: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=irq/core&id=0d3f2c92e004c67404fabea19728c1962b777bd6 Gregory
quoted hunk ↗ jump to hunk
--- arch/arm/mach-mvebu/board-v7.c | 9 +++++++++ 1 file changed, 9 insertions(+)diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c index e5911defccac..b789f7037445 100644 --- a/arch/arm/mach-mvebu/board-v7.c +++ b/arch/arm/mach-mvebu/board-v7.c@@ -18,6 +18,7 @@ #include <linux/of_address.h> #include <linux/of_fdt.h> #include <linux/of_platform.h> +#include <linux/irq.h> #include <linux/io.h> #include <linux/clocksource.h> #include <linux/dma-mapping.h>@@ -26,6 +27,7 @@ #include <linux/signal.h> #include <linux/slab.h> #include <linux/irqchip.h> +#include <linux/irqchip/arm-gic.h> #include <asm/hardware/cache-l2x0.h> #include <asm/mach/arch.h> #include <asm/mach/map.h>@@ -129,6 +131,13 @@ static int armada_375_external_abort_wa(unsigned long addr, unsigned int fsr, static void __init mvebu_init_irq(void) { + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-gic"); + if (np) + gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE | + IRQCHIP_MASK_ON_SUSPEND); + of_node_put(np); irqchip_init(); mvebu_scu_enable(); coherency_init();
-- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com