[PATCH v3 2/3] drm/vc4: Remove conflicting framebuffers before callind bind_all

Maxime Ripard maxime at cerno.tech
Mon Dec 13 01:25:02 PST 2021


The bind hooks will modify their controller registers, so simplefb is
going to be unusable anyway. Let's avoid any transient state where it
could still be in the system but no longer functionnal.

Acked-by: Nicolas Saenz Julienne <nsaenz at kernel.org>
Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 16abc3a3d601..8ab89f805826 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -251,6 +251,10 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		return ret;
 
+	ret = drm_aperture_remove_framebuffers(false, &vc4_drm_driver);
+	if (ret)
+		return ret;
+
 	ret = component_bind_all(dev, drm);
 	if (ret)
 		return ret;
@@ -259,10 +263,6 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret)
 		goto unbind_all;
 
-	ret = drm_aperture_remove_framebuffers(false, &vc4_drm_driver);
-	if (ret)
-		goto unbind_all;
-
 	ret = vc4_kms_load(drm);
 	if (ret < 0)
 		goto unbind_all;
-- 
2.33.1




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