Il 08/12/21 13:07, Dafna Hirschfeld ha scritto:

From: Yong Wu <yong.wu@mediatek.com>

To simplify the code, Remove the power status checking in the
tlb_flush_all, remove this:
    if (pm_runtime_get_if_in_use(data->dev) <= 0)
	    continue;

The mtk_iommu_tlb_flush_all is called from
a) isr
b) tlb flush range fail case
c) iommu_create_device_direct_mappings

In first two cases, the power and clock are always enabled.
In the third case tlb flush is unnecessary because in a later patch
in the series a full flush from the pm_runtime_resume callback is added.

In addition, writing the tlb control register when the iommu is not resumed
is ok and the write is ignored.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
[refactor commit log]
Signed-off-by: Dafna Hirschfeld <redacted>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

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