diff options
Diffstat (limited to 'drivers/gpu/drm/tilcdc')
-rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_external.c | 68 |
2 files changed, 10 insertions, 70 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index afd2a7b..d524ed0 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -23,6 +23,7 @@ #include <linux/workqueue.h> #include <linux/completion.h> #include <linux/dma-mapping.h> +#include <linux/of_graph.h> #include "tilcdc_drv.h" #include "tilcdc_regs.h" @@ -1035,16 +1036,7 @@ int tilcdc_crtc_create(struct drm_device *dev) drm_crtc_helper_add(crtc, &tilcdc_crtc_helper_funcs); if (priv->is_componentized) { - struct device_node *ports = - of_get_child_by_name(dev->dev->of_node, "ports"); - - if (ports) { - crtc->port = of_get_child_by_name(ports, "port"); - of_node_put(ports); - } else { - crtc->port = - of_get_child_by_name(dev->dev->of_node, "port"); - } + crtc->port = of_graph_get_port_by_id(dev->dev->of_node, 0); if (!crtc->port) { /* This should never happen */ dev_err(dev->dev, "Port node not found in %s\n", dev->dev->of_node->full_name); diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/tilcdc/tilcdc_external.c index b0dd5e8..711c7b3 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_external.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c @@ -185,39 +185,6 @@ int tilcdc_attach_bridge(struct drm_device *ddev, struct drm_bridge *bridge) return ret; } -static int tilcdc_node_has_port(struct device_node *dev_node) -{ - struct device_node *node; - - node = of_get_child_by_name(dev_node, "ports"); - if (!node) - node = of_get_child_by_name(dev_node, "port"); - if (!node) - return 0; - of_node_put(node); - - return 1; -} - -static -struct device_node *tilcdc_get_remote_node(struct device_node *node) -{ - struct device_node *ep; - struct device_node *parent; - - if (!tilcdc_node_has_port(node)) - return NULL; - - ep = of_graph_get_next_endpoint(node, NULL); - if (!ep) - return NULL; - - parent = of_graph_get_remote_port_parent(ep); - of_node_put(ep); - - return parent; -} - int tilcdc_attach_external_device(struct drm_device *ddev) { struct tilcdc_drm_private *priv = ddev->dev_private; @@ -225,7 +192,7 @@ int tilcdc_attach_external_device(struct drm_device *ddev) struct drm_bridge *bridge; int ret; - remote_node = tilcdc_get_remote_node(ddev->dev->of_node); + remote_node = of_graph_get_remote_node(ddev->dev->of_node, 0, 0); if (!remote_node) return 0; @@ -264,35 +231,16 @@ int tilcdc_get_external_components(struct device *dev, struct component_match **match) { struct device_node *node; - struct device_node *ep = NULL; - int count = 0; - int ret = 0; - - if (!tilcdc_node_has_port(dev->of_node)) - return 0; - while ((ep = of_graph_get_next_endpoint(dev->of_node, ep))) { - node = of_graph_get_remote_port_parent(ep); - if (!node || !of_device_is_available(node)) { - of_node_put(node); - continue; - } - - dev_dbg(dev, "Subdevice node '%s' found\n", node->name); - - if (of_device_is_compatible(node, "nxp,tda998x")) { - if (match) - drm_of_component_match_add(dev, match, - dev_match_of, node); - ret = 1; - } + node = of_graph_get_remote_node(dev->of_node, 0, 0); + if (!of_device_is_compatible(node, "nxp,tda998x")) { of_node_put(node); - if (count++ > 1) { - dev_err(dev, "Only one port is supported\n"); - return -EINVAL; - } + return 0; } - return ret; + if (match) + drm_of_component_match_add(dev, match, dev_match_of, node); + of_node_put(node); + return 1; } |