qcom-geni-se: Add IOMMU check in geni common driver



Add IOMMU check to prevent using IOMMU functionality
if it is not enabled.

Change-Id: Ib653779444be869a71886fdd438a20bbf6f6af20
Signed-off-by: Prudhvi Yarlagadda <pyarlaga@codeaurora.org>

parent cc7a8b2d

drivers/platform/msm/qcom-geni-se.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1329,6 +1329,10 @@ static int geni_se_iommu_map_and_attach(struct geni_se_device *geni_se_dev)
		int bypass = 1;
		struct device *cb_dev = geni_se_dev->cb_dev;

		/Don't proceed if IOMMU node is disabled/
		if (!iommu_present(&platform_bus_type))
		return 0;

		mutex_lock(&geni_se_dev->iommu_lock);
		if (likely(geni_se_dev->iommu_map)) {
		mutex_unlock(&geni_se_dev->iommu_lock);