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drm/arm: mali-dp: Set crtc.port to the port instead of the endpoint
The CRTC's port pointer was being set to the endpoint node instead of the port. Fix that, and hold a reference on the port node. Signed-off-by: Brian Starkey <brian.starkey@arm.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1469549725-19577-1-git-send-email-brian.starkey@arm.com
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@ -257,6 +257,7 @@ static int malidp_bind(struct device *dev)
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{
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struct resource *res;
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struct drm_device *drm;
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struct device_node *ep;
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struct malidp_drm *malidp;
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struct malidp_hw_device *hwdev;
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struct platform_device *pdev = to_platform_device(dev);
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@ -360,11 +361,12 @@ static int malidp_bind(struct device *dev)
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goto register_fail;
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/* Set the CRTC's port so that the encoder component can find it */
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malidp->crtc.port = of_graph_get_next_endpoint(dev->of_node, NULL);
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ep = of_graph_get_next_endpoint(dev->of_node, NULL);
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if (!ep)
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goto port_fail;
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malidp->crtc.port = of_get_next_parent(ep);
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ret = component_bind_all(dev, drm);
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of_node_put(malidp->crtc.port);
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if (ret) {
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DRM_ERROR("Failed to bind all components\n");
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goto bind_fail;
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@ -402,6 +404,9 @@ vblank_fail:
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irq_init_fail:
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component_unbind_all(dev, drm);
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bind_fail:
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of_node_put(malidp->crtc.port);
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malidp->crtc.port = NULL;
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port_fail:
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drm_dev_unregister(drm);
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register_fail:
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malidp_de_planes_destroy(drm);
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@ -435,6 +440,8 @@ static void malidp_unbind(struct device *dev)
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malidp_de_irq_fini(drm);
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drm_vblank_cleanup(drm);
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component_unbind_all(dev, drm);
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of_node_put(malidp->crtc.port);
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malidp->crtc.port = NULL;
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drm_dev_unregister(drm);
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malidp_de_planes_destroy(drm);
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drm_mode_config_cleanup(drm);
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