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

Fixes: 03436e3ec69c ("drm/msm/dsi: Move setup_encoder to modeset_init")

Cc: stable@vger.kernel.org Signed-off-by: David Heidelberg david@ixit.cz --- 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 1f12bccee2b8..cdcaf470f148 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c @@ -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;