[PATCH] drm/msm: add IOMMU_SUPPORT dependency

[PATCH] drm/msm: add IOMMU_SUPPORT dependency

[Arnd Bergmann]

From: Arnd Bergmann <arnd@arndb.de>

The iommu pgtable support is only available when IOMMU support
is built into the kernel:

WARNING: unmet direct dependencies detected for IOMMU_IO_PGTABLE
  Depends on [n]: IOMMU_SUPPORT [=n]
  Selected by [y]:
  - DRM_MSM [=y] && HAS_IOMEM [=y] && DRM [=y] && (ARCH_QCOM [=y] || SOC_IMX5 || ARM && COMPILE_TEST [=y]) && OF [=y] && COMMON_CLK [=y] && MMU [=y] && (QCOM_OCMEM [=y] || QCOM_OCMEM [=y]=n)

Fix the dependency accordingly. There is no need for depending on
CONFIG_MMU any more, as that is implied by the iommu support.

Fixes: b145c6e65eb0 ("drm/msm: Add support to create a local pagetable")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/msm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index e5816b498494..dabb4a1ccdcf 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -4,8 +4,8 @@ config DRM_MSM
 	tristate "MSM DRM"
 	depends on DRM
 	depends on ARCH_QCOM || SOC_IMX5 || (ARM && COMPILE_TEST)
+	depends on IOMMU_SUPPORT
 	depends on OF && COMMON_CLK
-	depends on MMU
 	depends on QCOM_OCMEM || QCOM_OCMEM=n
 	select IOMMU_IO_PGTABLE
 	select QCOM_MDT_LOADER if ARCH_QCOM
-- 
2.27.0

Re: [PATCH] drm/msm: add IOMMU_SUPPORT dependency

[patchwork-bot+linux-arm-msm]

Hello:

This patch was applied to qcom/linux.git (refs/heads/for-next):

On Fri,  4 Dec 2020 00:13:38 +0100 you wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> The iommu pgtable support is only available when IOMMU support
> is built into the kernel:
> 
> WARNING: unmet direct dependencies detected for IOMMU_IO_PGTABLE
>   Depends on [n]: IOMMU_SUPPORT [=n]
>   Selected by [y]:
>   - DRM_MSM [=y] && HAS_IOMEM [=y] && DRM [=y] && (ARCH_QCOM [=y] || SOC_IMX5 || ARM && COMPILE_TEST [=y]) && OF [=y] && COMMON_CLK [=y] && MMU [=y] && (QCOM_OCMEM [=y] || QCOM_OCMEM [=y]=n)
> 
> [...]

Here is the summary with links:
  - drm/msm: add IOMMU_SUPPORT dependency
    https://git.kernel.org/qcom/c/e319a1b956f7

You are awesome, thank you!
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