[PATCH v4 06/35] iommu/mediatek: Add mutex for m4u_group and m4u_dom in data

Add a mutex to protect the data in the structure mtk_iommu_data, like ->"m4u_group" ->"m4u_dom". For the internal data, we should protect it in ourselves driver. Add a mutex for this. This could be a fix for the multi-groups support. Fixes: c3045f39244e ("iommu/mediatek: Support for multi domains"

Re: [PATCH v4 06/35] iommu/mediatek: Add mutex for m4u_group and m4u_dom in data

Il 25/01/22 09:56, Yong Wu ha scritto: Add a mutex to protect the data in the structure mtk_iommu_data, like ->"m4u_group" ->"m4u_dom". For the internal data, we should protect it in ourselves driver. Add a mutex for this. This could be a fix for the multi-groups support. Fixes: c3045f39244e ("i