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path: root/drivers/gpu/drm/imx/imx-drm-core.c
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Diffstat (limited to 'drivers/gpu/drm/imx/imx-drm-core.c')
-rw-r--r--drivers/gpu/drm/imx/imx-drm-core.c20
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index a002f53aab0e..db2f5a739e05 100644
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -431,15 +431,6 @@ int imx_drm_encoder_parse_of(struct drm_device *drm,
431} 431}
432EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); 432EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);
433 433
434static struct device_node *imx_drm_of_get_next_endpoint(
435 const struct device_node *parent, struct device_node *prev)
436{
437 struct device_node *node = of_graph_get_next_endpoint(parent, prev);
438
439 of_node_put(prev);
440 return node;
441}
442
443/* 434/*
444 * @node: device tree node containing encoder input ports 435 * @node: device tree node containing encoder input ports
445 * @encoder: drm_encoder 436 * @encoder: drm_encoder
@@ -448,7 +439,7 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
448 struct drm_encoder *encoder) 439 struct drm_encoder *encoder)
449{ 440{
450 struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc); 441 struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc);
451 struct device_node *ep = NULL; 442 struct device_node *ep;
452 struct of_endpoint endpoint; 443 struct of_endpoint endpoint;
453 struct device_node *port; 444 struct device_node *port;
454 int ret; 445 int ret;
@@ -456,18 +447,15 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
456 if (!node || !imx_crtc) 447 if (!node || !imx_crtc)
457 return -EINVAL; 448 return -EINVAL;
458 449
459 do { 450 for_each_endpoint_of_node(node, ep) {
460 ep = imx_drm_of_get_next_endpoint(node, ep);
461 if (!ep)
462 break;
463
464 port = of_graph_get_remote_port(ep); 451 port = of_graph_get_remote_port(ep);
465 of_node_put(port); 452 of_node_put(port);
466 if (port == imx_crtc->crtc->port) { 453 if (port == imx_crtc->crtc->port) {
467 ret = of_graph_parse_endpoint(ep, &endpoint); 454 ret = of_graph_parse_endpoint(ep, &endpoint);
455 of_node_put(ep);
468 return ret ? ret : endpoint.port; 456 return ret ? ret : endpoint.port;
469 } 457 }
470 } while (ep); 458 }
471 459
472 return -EINVAL; 460 return -EINVAL;
473} 461}