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authorYong Wu <yong.wu@mediatek.com>2021-01-11 14:19:00 +0300
committerWill Deacon <will@kernel.org>2021-02-01 14:31:18 +0300
commit34665c7929fc27351ee3f45554e8991a6fd6e284 (patch)
treefbe1c22c5f972108b30b164daba1de25ab12c35e /drivers/iommu/mtk_iommu.c
parentbaf94e6ebff9622f60c4a87ff59c85bf756b7e20 (diff)
downloadlinux-34665c7929fc27351ee3f45554e8991a6fd6e284.tar.xz
iommu/mediatek: Add pm runtime callback
In pm runtime case, all the registers backup/restore and bclk are controlled in the pm_runtime callback, Rename the original suspend/resume to the runtime_suspend/resume. Use pm_runtime_force_suspend/resume as the normal suspend/resume. iommu should suspend after iommu consumer devices, thus use _LATE_. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Link: https://lore.kernel.org/r/20210111111914.22211-20-yong.wu@mediatek.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/mtk_iommu.c')
-rw-r--r--drivers/iommu/mtk_iommu.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 0fe7c1617dc3..3682137b789a 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -802,7 +802,7 @@ static int mtk_iommu_remove(struct platform_device *pdev)
return 0;
}
-static int __maybe_unused mtk_iommu_suspend(struct device *dev)
+static int __maybe_unused mtk_iommu_runtime_suspend(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
struct mtk_iommu_suspend_reg *reg = &data->reg;
@@ -820,7 +820,7 @@ static int __maybe_unused mtk_iommu_suspend(struct device *dev)
return 0;
}
-static int __maybe_unused mtk_iommu_resume(struct device *dev)
+static int __maybe_unused mtk_iommu_runtime_resume(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
struct mtk_iommu_suspend_reg *reg = &data->reg;
@@ -848,7 +848,9 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
}
static const struct dev_pm_ops mtk_iommu_pm_ops = {
- SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_iommu_suspend, mtk_iommu_resume)
+ SET_RUNTIME_PM_OPS(mtk_iommu_runtime_suspend, mtk_iommu_runtime_resume, NULL)
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};
static const struct mtk_iommu_plat_data mt2712_data = {