0094-iommu-arm-smmu-v3-Change-pm-interface-during-system-.patch

From 7a100cb853cc1dc2604ac11194e142588fcd9db4 Mon Sep 17 00:00:00 2001
From: Wang Yinfeng <wangyinfeng@phytium.com.cn>
Date: Mon, 17 Jun 2024 19:33:08 +0800
Subject: [PATCH 094/150] iommu/arm-smmu-v3: Change pm interface during system
 sleep transition

This patch enforces proper order of suspending/restoring devices
during system sleep transition, so use SET_SYSTEM_SLEEP_PM_OPS
interface to make it workaround for ensuring that SMMUs are
suspended after their master devices. For example S4 test with SMMUs.

Signed-off-by: Wang Yinfeng <wangyinfeng@phytium.com.cn>
Signed-off-by: Li Mingzhe <limingzhe1839@phytium.com.cn>
Signed-off-by: Wang Xu <wangxu@phytium.com.cn>
Signed-off-by: Chen Baozi <chenbaozi@phytium.com.cn>
Change-Id: Icf29cd269cced58ff9678007f5596f21f7f93f0f
Signed-off-by: Andrew Powers-Holmes <aholmes@omnom.net>
---
 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 8ef0e1a766b1..45fbdd4dd499 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -4002,8 +4002,8 @@ static void arm_smmu_driver_unregister(struct platform_driver *drv)
 
 #ifdef CONFIG_PM_SLEEP
 static const struct dev_pm_ops arm_smmu_pm_ops = {
-	.suspend = arm_smmu_suspend,
-	.resume = arm_smmu_resume,
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arm_smmu_suspend,
+				      arm_smmu_resume)
 };
 #define ARM_SMMU_PM_OPS                (&arm_smmu_pm_ops)
 #else
-- 
2.47.0