drm/tegra: Unconditionally select IOMMU_IOVA

Currently configurations can be generated where IOMMU_SUPPORT is
disabled but IOMMU_IOVA is built as a module and DRM_TEGRA as built-in.
In such a case, the symbols guarded by IOMMU_IOVA will not be available
when linking the Tegra DRM driver and cause a linking failure.

Simplify this by unconditionally selecting IOMMU_IOVA, which makes sure
that it will be forced to =y if DRM_TEGRA=y. Technically we can now get
IOMMU_IOVA code built-in even if we don't use it (Tegra DRM only uses it
when IOMMU_SUPPORT is also enabled), but such configuration are of a
mostly academic nature. In all practical configurations we want IOMMU
support anyway.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/tegra/Kconfig b/drivers/gpu/drm/tegra/Kconfig
index 1d1269fde3c160fe8739f410f4aeae3eb64ad068..5043dcaf1cf957d2136e01f9b61e71fd3a647ff8 100644 (file)
--- a/drivers/gpu/drm/tegra/Kconfig
+++ b/drivers/gpu/drm/tegra/Kconfig
@@ -9,7 +9,7 @@ config DRM_TEGRA
        select DRM_MIPI_DSI
        select DRM_PANEL
        select TEGRA_HOST1X
-       select IOMMU_IOVA if IOMMU_SUPPORT
+       select IOMMU_IOVA
        select CEC_CORE if CEC_NOTIFIER
        help
          Choose this option if you have an NVIDIA Tegra SoC.