msm: cpp: Update iommu handling



CPP has to check for stream state before operate iommu
contexts.

Change-Id: I69e6266e1ff2d1cd93e7191f2c43c887154abae0
Signed-off-by: Iliya Varadzhakov <ivarad@codeaurora.org>

parent 8450d1c2

drivers/media/platform/msm/camera_v2/pproc/cpp/msm_cpp.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -2545,7 +2545,8 @@ STREAM_BUFF_END:
		break;
		}
		case VIDIOC_MSM_CPP_IOMMU_DETACH: {
		if (cpp_dev->iommu_state == CPP_IOMMU_STATE_ATTACHED) {
		if ((cpp_dev->iommu_state == CPP_IOMMU_STATE_ATTACHED) &&
		(cpp_dev->stream_cnt == 0)) {
		iommu_detach_device(cpp_dev->domain,
		cpp_dev->iommu_ctx);
		cpp_dev->iommu_state = CPP_IOMMU_STATE_DETACHED;