drm/sti: make use of drm_of_component_probe

Enhance the probing sequence by using the ports property of the
display-subsystem node.

That done, it becomes possible to handle the display-substem node
outside of the soc node within the device-tree and not have each IP
blocks as children of the display-subsystem node.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
Acked-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://patch.msgid.link/20250717-sti-rework-v1-2-46d516fb1ebb@gmail.com
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>

diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 42f21ab91957b38cb9aef012b6ee7f4ae1683edf..9d6a7c8fa0759c0b6fedf87169b18cff3684be46 100644 (file)
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -231,9 +231,6 @@ static const struct component_master_ops sti_ops = {
 static int sti_platform_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
-       struct device_node *node = dev->of_node;
-       struct device_node *child_np;
-       struct component_match *match = NULL;
        int ret;
 
        ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
@@ -242,15 +239,7 @@ static int sti_platform_probe(struct platform_device *pdev)
 
        devm_of_platform_populate(dev);
 
-       child_np = of_get_next_available_child(node, NULL);
-
-       while (child_np) {
-               drm_of_component_match_add(dev, &match, component_compare_of,
-                                          child_np);
-               child_np = of_get_next_available_child(node, child_np);
-       }
-
-       return component_master_add_with_match(dev, &sti_ops, match);
+       return drm_of_component_probe(dev, component_compare_of, &sti_ops);
 }
 
 static void sti_platform_remove(struct platform_device *pdev)