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OpenCloudOS-Kernel
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drm/msi/mdp4: populate priv->kms in mdp4_kms_init 

Without this fix boot throws NULL ptr exception at msm_dsi_manager_setup_encoder
on devices like Nexus 7 2013 (MDP4 v4.4).

Fixes: 03436e3ec6 ("drm/msm/dsi: Move setup_encoder to modeset_init")

Cc: <stable@vger.kernel.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20210811170631.39296-1-david@ixit.cz
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
David Heidelberg 2021-08-11 19:06:31 +02:00 committed by Rob Clark
parent 858c595a3f
commit cb0927ab80
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
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@ -399,6 +399,7 @@ 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;
@ -418,7 +419,8 @@ 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;