bus: fsl-mc: don't assume an iommu is always present

There are certain scenarios where an iommu is not present, e.g.
booting in a VM. Let's support these scenarios by dropping the
check.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Link: https://lore.kernel.org/r/20200914105459.27448-1-laurentiu.tudor@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index b69794e..b0449df 100644 (file)
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -908,9 +908,6 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
        u32 mc_portal_size, mc_stream_id;
        struct resource *plat_res;
 
-       if (!iommu_present(&fsl_mc_bus_type))
-               return -EPROBE_DEFER;
-
        mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);
        if (!mc)
                return -ENOMEM;