drm/imx: Convert the probe function to the generic drm_of_component_probe()

The generic function is functionally equivalent to the driver's
imx_drm_platform_probe(). Use the generic function and reduce the
overall code size.

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1445332995-11212-3-git-send-email-Liviu.Dudau@arm.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index de00a6c..64f16ea 100644 (file)
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -531,59 +531,12 @@ static const struct component_master_ops imx_drm_ops = {
 
 static int imx_drm_platform_probe(struct platform_device *pdev)
 {
-       struct device_node *ep, *port, *remote;
-       struct component_match *match = NULL;
-       int ret;
-       int i;
-
-       /*
-        * Bind the IPU display interface ports first, so that
-        * imx_drm_encoder_parse_of called from encoder .bind callbacks
-        * works as expected.
-        */
-       for (i = 0; ; i++) {
-               port = of_parse_phandle(pdev->dev.of_node, "ports", i);
-               if (!port)
-                       break;
-
-               component_match_add(&pdev->dev, &match, compare_of, port);
-       }
+       int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops);
 
-       if (i == 0) {
-               dev_err(&pdev->dev, "missing 'ports' property\n");
-               return -ENODEV;
-       }
+       if (!ret)
+               ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 
-       /* Then bind all encoders */
-       for (i = 0; ; i++) {
-               port = of_parse_phandle(pdev->dev.of_node, "ports", i);
-               if (!port)
-                       break;
-
-               for_each_child_of_node(port, ep) {
-                       remote = of_graph_get_remote_port_parent(ep);
-                       if (!remote || !of_device_is_available(remote)) {
-                               of_node_put(remote);
-                               continue;
-                       } else if (!of_device_is_available(remote->parent)) {
-                               dev_warn(&pdev->dev, "parent device of %s is not available\n",
-                                        remote->full_name);
-                               of_node_put(remote);
-                               continue;
-                       }
-
-                       component_match_add(&pdev->dev, &match, compare_of,
-                                           remote);
-                       of_node_put(remote);
-               }
-               of_node_put(port);
-       }
-
-       ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-       if (ret)
-               return ret;
-
-       return component_master_add_with_match(&pdev->dev, &imx_drm_ops, match);
+       return ret;
 }
 
 static int imx_drm_platform_remove(struct platform_device *pdev)