From 186788893aecabdd5c01b0d3fff71d0297565ea8 Mon Sep 17 00:00:00 2001 From: Andy Yan Date: Sat, 26 Jun 2021 18:07:16 +0800 Subject: [PATCH] drm/rockchip: Fix of_device_is_available check for iommu I think we want to fallback to non-iommu buffer if iommu is disabled in dts. Check for iommu->parent is meanless here. Signed-off-by: Andy Yan Change-Id: I78ce028a9c1215f1e8f956916f775f07b30e67be --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index a12c9caa8a23..89a2b0b0e50d 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -462,7 +462,7 @@ 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);