diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 50b65ffc24b1..97790faffd23 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -969,6 +969,39 @@ static int add_components_mdp(struct device *master_dev, return 0; } +#if !IS_REACHABLE(CONFIG_DRM_MSM_MDP5) || !IS_REACHABLE(CONFIG_DRM_MSM_DPU) +bool msm_disp_drv_should_bind(struct device *dev, bool dpu_driver) +{ + /* If just a single driver is enabled, use it no matter what */ + return true; +} +#else + +static bool prefer_mdp5 = true; +MODULE_PARM_DESC(prefer_mdp5, "Select whether MDP5 or DPU driver should be preferred"); +module_param(prefer_mdp5, bool, 0444); + +/* list all platforms supported by both mdp5 and dpu drivers */ +static const char *const msm_mdp5_dpu_migration[] = { + "qcom,sdm630-mdp5", + "qcom,sdm660-mdp5", + NULL, +}; + +bool msm_disp_drv_should_bind(struct device *dev, bool dpu_driver) +{ + /* If it is not an MDP5 device, do not try MDP5 driver */ + if (!of_device_is_compatible(dev->of_node, "qcom,mdp5")) + return dpu_driver; + + /* If it is not in the migration list, use MDP5 */ + if (!of_device_compatible_match(dev->of_node, msm_mdp5_dpu_migration)) + return !dpu_driver; + + return prefer_mdp5 ? !dpu_driver : dpu_driver; +} +#endif + /* * We don't know what's the best binding to link the gpu with the drm device. * Fow now, we just hunt for all the possible gpus that we support, and add them |