UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/rockchip: Check iommu itself instead of it's parent for device_is_available 

When iommu itself is disabled in dts, we should
fallback to non-iommu buffer, check iommu parent
is meanless here.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210627084737.309163-1-andy.yan@rock-chips.com
This commit is contained in:
Andy Yan 2021-06-27 16:47:37 +08:00 committed by Heiko Stuebner
parent adfeef9370
commit e1202c7a65
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
View File

@ -374,7 +374,7 @@ static int rockchip_drm_platform_of_probe(struct device *dev)
}
iommu = of_parse_phandle(port->parent, "iommus", 0);
if (!iommu || !of_device_is_available(iommu->parent)) {
if (!iommu || !of_device_is_available(iommu)) {
DRM_DEV_DEBUG(dev,
"no iommu attached for %pOF, using non-iommu buffers\n",
port->parent);