In the current implementation, substring comparison using device node name is used to find mdp node during driver probe. Use compatible string list instead of node name to get mdp node from the parent mdss node.
Signed-off-by: Krishna Manikandan mkrishn@codeaurora.org
Changes in v2: - Use compatible lists instead of duplicate string check (Stephen Boyd) --- drivers/gpu/drm/msm/msm_drv.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 2e6fc18..451d667 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -1241,9 +1241,13 @@ static int add_components_mdp(struct device *mdp_dev, return 0; }
-static int compare_name_mdp(struct device *dev, void *data) +static int find_mdp_node(struct device *dev, void *data) { - return (strstr(dev_name(dev), "mdp") != NULL); + if (!dev->driver) + return 0; + + return (of_match_node(dev->driver->of_match_table, + dev->of_node) != NULL); }
static int add_display_components(struct platform_device *pdev, @@ -1268,7 +1272,7 @@ static int add_display_components(struct platform_device *pdev, return ret; }
- mdp_dev = device_find_child(dev, NULL, compare_name_mdp); + mdp_dev = device_find_child(dev, NULL, find_mdp_node); if (!mdp_dev) { DRM_DEV_ERROR(dev, "failed to find MDSS MDP node\n"); of_platform_depopulate(dev);