Without this fix boot throws NULL ptr exception at msm_dsi_manager_setup_encoder
on devices like Nexus 7 2013 (MDP4 v4.4).
Tested on Nexus 7 2013, kernels LTS 5.10 and 5.4.
Fixes: 03436e3ec69c ("drm/msm/dsi: Move setup_encoder to modeset_init")
Signed-off-by: David Heidelberg <david@xxxxxxx>
---
drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
index 0712752742f4..94b64e82666d 100644
--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
@@ -412,6 +412,7 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
{
struct platform_device *pdev = to_platform_device(dev->dev);
struct mdp4_platform_config *config = mdp4_get_config(pdev);
+ struct msm_drm_private *priv = dev->dev_private;
struct mdp4_kms *mdp4_kms;
struct msm_kms *kms = NULL;
struct msm_gem_address_space *aspace;
@@ -431,7 +432,8 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
goto fail;
}
- kms = &mdp4_kms->base.base;
+ priv->kms = &mdp4_kms->base.base;
+ kms = priv->kms;
mdp4_kms->dev = dev;
--
2.30.2
