[PATCH 8/9] drm/rockchip: Drop ROCKCHIP_IOMMU depend for DRM_ROCKCHIP

Chaoyi Chen kernel at airkyi.com
Wed Nov 5 18:06:31 PST 2025


From: Chaoyi Chen <chaoyi.chen at rock-chips.com>

On the RK3506 platform, there is no iommu hardware. And even on
platform that have iommu hardware, it should be possible to use
VOP without enabling iommu. In this case, a contiguous memory
space like CMA should be used.

So this patch removes the dependency on ROCKCHIP_IOMMU.

Signed-off-by: Chaoyi Chen <chaoyi.chen at rock-chips.com>
---
 drivers/gpu/drm/rockchip/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index b7b025814e72..a056d419190c 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -1,7 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config DRM_ROCKCHIP
 	tristate "DRM Support for Rockchip"
-	depends on DRM && ROCKCHIP_IOMMU
+	depends on DRM
+	depends on ROCKCHIP_IOMMU || !ROCKCHIP_IOMMU
 	depends on OF
 	select DRM_CLIENT_SELECTION
 	select DRM_GEM_DMA_HELPER
-- 
2.51.1




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