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| author |   Yong Wu <yong.wu@mediatek.com> | 2021-01-11 19:19:00 +0800 |
|---|---|---|
| committer |   Will Deacon <will@kernel.org> | 2021-02-01 11:31:18 +0000 |
| commit | 34665c7929fc27351ee3f45554e8991a6fd6e284 (patch) | |
| tree | fbe1c22c5f972108b30b164daba1de25ab12c35e /drivers/iommu | |
| parent | iommu/mediatek: Add device link for smi-common and m4u (diff) | |
| download | linux-dev-34665c7929fc27351ee3f45554e8991a6fd6e284.tar.xz linux-dev-34665c7929fc27351ee3f45554e8991a6fd6e284.zip | |
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')
| -rw-r--r-- | drivers/iommu/mtk_iommu.c | 8 |
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 = { |