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drm/nouveau/platform: fix compile error if !CONFIG_IOMMU 

The lack of IOMMU API support can make nouveau_platform_probe_iommu()
fail to compile because struct iommu_ops is then empty. Fix this by
skipping IOMMU probe in that case - lack of IOMMU on platform devices
is sub-optimal, but is not an error.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Alexandre Courbot 2015-04-08 18:08:13 +09:00 committed by Ben Skeggs
parent f5654d9555
commit a67e14b0b6
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/nouveau/nouveau_platform.c
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@ -92,6 +92,8 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu)
return 0;
}
#if IS_ENABLED(CONFIG_IOMMU_API)
static void nouveau_platform_probe_iommu(struct device *dev,
struct nouveau_platform_gpu *gpu)
{
@ -158,6 +160,20 @@ static void nouveau_platform_remove_iommu(struct device *dev,
}
}
#else
static void nouveau_platform_probe_iommu(struct device *dev,
struct nouveau_platform_gpu *gpu)
{
}
static void nouveau_platform_remove_iommu(struct device *dev,
struct nouveau_platform_gpu *gpu)
{
}
#endif
static int nouveau_platform_probe(struct platform_device *pdev)
{
struct nouveau_platform_gpu *gpu;