Merge tag 'drm/tegra/for-5.1-rc5' of git://anongit.freedesktop.org/tegra/linux into drm-fixes

drm/tegra: Fixes for v5.1-rc5

A single, one-line fix for a build error introduced in v5.1-rc1.
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190411084106.7552-1-thierry.reding@gmail.com

drivers/gpu/host1x/hw/channel_hw.c

@@ -114,7 +114,7 @@ static inline void synchronize_syncpt_base(struct host1x_job *job)
 
 static void host1x_channel_set_streamid(struct host1x_channel *channel)
 {
-#if HOST1X_HW >= 6
+#if IS_ENABLED(CONFIG_IOMMU_API) &&  HOST1X_HW >= 6
 	struct iommu_fwspec *spec = dev_iommu_fwspec_get(channel->dev->parent);
 	u32 sid = spec ? spec->ids[0] & 0xffff : 0x7f;