From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>,
kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Fabio Estevam <festevam@gmail.com>,
linux-imx@nxp.com
Subject: [PATCH v3] ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence
Date: Tue, 28 Sep 2021 15:49:40 +0200 [thread overview]
Message-ID: <20210928134940.1329-1-o.rempel@pengutronix.de> (raw)
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
next reply other threads:[~2021-09-28 13:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-28 13:49 Oleksij Rempel [this message]
2021-10-05 5:58 ` [PATCH v3] ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence Shawn Guo
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