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

Message ID 20210928134940.1329-1-o.rempel@pengutronix.de
State New
Headers show
Series [v3] ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence | expand

Commit Message

Oleksij Rempel Sept. 28, 2021, 1:49 p.m. UTC
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(+)

Comments

Shawn Guo Oct. 5, 2021, 5:58 a.m. UTC | #1
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!
diff mbox series

Patch

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);