[PATCH v6 19/22] iommu/mediatek: Add shutdown callback
From: Yong Wu <yong.wu@mediatek.com>
Date: 2019-02-17 09:09:54
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
This patch only improve the shutdown flow. The shutdown callback will mute the M4U HW when the system shutdown. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Evan Green <redacted> --- drivers/iommu/mtk_iommu.c | 6 ++++++ drivers/iommu/mtk_iommu_v1.c | 6 ++++++ 2 files changed, 12 insertions(+)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index b02854c..8742841 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c@@ -702,6 +702,11 @@ static int mtk_iommu_remove(struct platform_device *pdev) return 0; } +static void mtk_iommu_shutdown(struct platform_device *pdev) +{ + mtk_iommu_remove(pdev); +} + static int __maybe_unused mtk_iommu_suspend(struct device *dev) { struct mtk_iommu_data *data = dev_get_drvdata(dev);
@@ -783,6 +788,7 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev) static struct platform_driver mtk_iommu_driver = { .probe = mtk_iommu_probe, .remove = mtk_iommu_remove, + .shutdown = mtk_iommu_shutdown, .driver = { .name = "mtk-iommu", .of_match_table = of_match_ptr(mtk_iommu_of_ids),
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 4f15043..dd84eea 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c@@ -660,6 +660,11 @@ static int mtk_iommu_remove(struct platform_device *pdev) return 0; } +static void mtk_iommu_shutdown(struct platform_device *pdev) +{ + mtk_iommu_remove(pdev); +} + static int __maybe_unused mtk_iommu_suspend(struct device *dev) { struct mtk_iommu_data *data = dev_get_drvdata(dev);
@@ -697,6 +702,7 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev) static struct platform_driver mtk_iommu_driver = { .probe = mtk_iommu_probe, .remove = mtk_iommu_remove, + .shutdown = mtk_iommu_shutdown, .driver = { .name = "mtk-iommu-v1", .of_match_table = mtk_iommu_of_ids,
--
1.9.1
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