[PATCH v3] ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence

Subsystems: arm port, the rest

STALE1830d

2 messages, 2 authors, 2021-10-05 · open the first message on its own page

[PATCH v3] ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence

From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: 2021-09-28 13:49:49

Any pending interrupt can prevent entering standby based power off state.
To avoid it, disable the GIC CPU interface.

Fixes: 8148d2136002 ("ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 arch/arm/mach-imx/pm-imx6.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
index 9244437cb1b9..f2ecca339910 100644
--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -10,6 +10,7 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/genalloc.h>
+#include <linux/irqchip/arm-gic.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
 #include <linux/of.h>
@@ -619,6 +620,7 @@ static void __init imx6_pm_common_init(const struct imx6_pm_socdata
 
 static void imx6_pm_stby_poweroff(void)
 {
+	gic_cpu_if_down(0);
 	imx6_set_lpm(STOP_POWER_OFF);
 	imx6q_suspend_finish(0);
 
-- 
2.30.2


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Re: [PATCH v3] ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence

From: Shawn Guo <shawnguo@kernel.org>
Date: 2021-10-05 05:58:56

On Tue, Sep 28, 2021 at 03:49:40PM +0200, Oleksij Rempel wrote:
Any pending interrupt can prevent entering standby based power off state.
To avoid it, disable the GIC CPU interface.

Fixes: 8148d2136002 ("ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Applied, thanks!

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