iommu/mediatek: Improve safety for mediatek,smi property in larb nodes

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No functional change. Just improve safety from dts.

All the larbs that connect to one IOMMU must connect with the same
smi-common. This patch checks all the mediatek,smi property for each
larb, If their mediatek,smi are different, it will return fails.
Also avoid there is no available smi-larb nodes.

Suggested-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20221018024258.19073-6-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

...

This commit is contained in:

Yong Wu 2022-10-18 10:42:57 +08:00 • committed by Joerg Roedel

parent ef693a8440

commit 6cde583d53

1 changed files with 37 additions and 16 deletions

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drivers/iommu/mtk_iommu.c

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