Hi Abhinav,
On Wed, Sep 15, 2021 at 11:22 PM abhinavk@codeaurora.org wrote:
Are you not using DPU or are you not using mdp4/mdp5 as well? Even if you are using any of mdps, kms should not be NULL. Hence wanted to check the test case.
I am running i.MX53, which is an NXP SoC, not Qualcomm's.
It does not use DPU, nor MDP4/5 and kms is NULL in this case.
Some debug prints to confirm:
--- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -557,18 +557,22 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) case KMS_MDP4: kms = mdp4_kms_init(ddev); priv->kms = kms; + pr_err("******** KMS_MDP4\n"); break; case KMS_MDP5: kms = mdp5_kms_init(ddev); + pr_err("******** KMS_MDP5\n"); break; case KMS_DPU: kms = dpu_kms_init(ddev); + pr_err("******** KMS_DPU\n"); priv->kms = kms; break; default: /* valid only for the dummy headless case, where of_node=NULL */ WARN_ON(dev->of_node); kms = NULL; + pr_err("******** KMS is NULL\n"); break; }
# dmesg | grep KMS [ 3.153215] ******** KMS is NULL