drm/mediatek: Remove IOMMU_DMA select

We get a harmless build warning when trying to use the mediatek DRM
driver with IOMMU support disabled:

	warning: (DRM_MEDIATEK) selects IOMMU_DMA which has unmet direct dependencies (IOMMU_SUPPORT)

However, the IOMMU_DMA symbol is not meant to be used by drivers at all,
and this driver doesn't seem to have a strict dependency on it other
than using the mediatek IOMMU driver that does.

Since we also want to be able to do compile tests with the driver on
other platforms, the IOMMU_DMA symbol should not be selected here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1462997501-982363-1-git-send-email-arnd@arndb.de

diff --git a/drivers/gpu/drm/mediatek/Kconfig b/drivers/gpu/drm/mediatek/Kconfig
index eeefc971801a7e069f6891279ee6d6e186e625ed..9eefecedc3da978c3bb466909e3b98114e582bb3 100644 (file)
--- a/drivers/gpu/drm/mediatek/Kconfig
+++ b/drivers/gpu/drm/mediatek/Kconfig
@@ -6,7 +6,6 @@ config DRM_MEDIATEK
        select DRM_KMS_HELPER
        select DRM_MIPI_DSI
        select DRM_PANEL
-       select IOMMU_DMA
        select MEMORY
        select MTK_SMI
        help