[PATCH v6 19/33] iommu/mediatek: Add pm runtime callback
From: Yong Wu <yong.wu@mediatek.com>
Date: 2021-01-11 11:23:24
Also in:
linux-devicetree, linux-iommu, linux-mediatek, lkml
Subsystem:
iommu subsystem, mediatek iommu driver, the rest · Maintainers:
Joerg Roedel, Will Deacon, Yong Wu, Linus Torvalds
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> --- drivers/iommu/mtk_iommu.c | 8 +++++--- 1 file 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 = {
--
2.18.0
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