static int etnaviv_pdev_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
struct component_match *match = NULL;
dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (node) {
struct device_node *core_node;
int i;
for (i = 0; ; i++) {
core_node = of_parse_phandle(node, "cores", i);
if (!core_node)
break;
drm_of_component_match_add(&pdev->dev, &match,
compare_of, core_node);
of_node_put(core_node);
}
} else if (dev->platform_data) {
char **names = dev->platform_data;
unsigned i;
for (i = 0; names[i]; i++)
component_match_add(dev, &match, compare_str, names[i]);
}
return component_master_add_with_match(dev, &etnaviv_master_ops, match);
}
static int hdlcd_probe(struct platform_device *pdev)
{
struct device_node *port, *ep;
struct component_match *match = NULL;
if (!pdev->dev.of_node)
return -ENODEV;
/* there is only one output port inside each device, find it */
ep = of_graph_get_next_endpoint(pdev->dev.of_node, NULL);
if (!ep)
return -ENODEV;
if (!of_device_is_available(ep)) {
of_node_put(ep);
return -ENODEV;
}
/* add the remote encoder port as component */
port = of_graph_get_remote_port_parent(ep);
of_node_put(ep);
if (!port || !of_device_is_available(port)) {
of_node_put(port);
return -EAGAIN;
}
drm_of_component_match_add(&pdev->dev, &match, compare_dev, port);
of_node_put(port);
return component_master_add_with_match(&pdev->dev, &hdlcd_master_ops,
match);
}
static int hdlcd_probe(struct platform_device *pdev)
{
struct device_node *port;
struct component_match *match = NULL;
/* there is only one output port inside each device, find it */
port = of_graph_get_remote_node(pdev->dev.of_node, 0, 0);
if (!port)
return -ENODEV;
drm_of_component_match_add(&pdev->dev, &match, compare_dev, port);
of_node_put(port);
return component_master_add_with_match(&pdev->dev, &hdlcd_master_ops,
match);
}
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;
}
of_node_put(node);
if (count++ > 1) {
dev_err(dev, "Only one port is supported\n");
return -EINVAL;
}
}
return ret;
}
static int kirin_drm_platform_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct component_match *match = NULL;
struct device_node *remote;
dc_ops = (struct kirin_dc_ops *)of_device_get_match_data(dev);
if (!dc_ops) {
DRM_ERROR("failed to get dt id data\n");
return -EINVAL;
}
remote = kirin_get_remote_node(np);
if (IS_ERR(remote))
return PTR_ERR(remote);
drm_of_component_match_add(dev, &match, compare_of, remote);
of_node_put(remote);
return component_master_add_with_match(dev, &kirin_drm_ops, match);
return 0;
}
static int sun4i_drv_add_endpoints(struct device *dev,
struct component_match **match,
struct device_node *node)
{
struct device_node *port, *ep, *remote;
int count = 0;
/*
* We don't support the frontend for now, so we will never
* have a device bound. Just skip over it, but we still want
* the rest our pipeline to be added.
*/
if (!sun4i_drv_node_is_frontend(node) &&
!of_device_is_available(node))
return 0;
if (!sun4i_drv_node_is_frontend(node)) {
/* Add current component */
DRM_DEBUG_DRIVER("Adding component %s\n",
of_node_full_name(node));
drm_of_component_match_add(dev, match, compare_of, node);
count++;
}
/* Inputs are listed first, then outputs */
port = of_graph_get_port_by_id(node, 1);
if (!port) {
DRM_DEBUG_DRIVER("No output to bind\n");
return count;
}
for_each_available_child_of_node(port, ep) {
remote = of_graph_get_remote_port_parent(ep);
if (!remote) {
DRM_DEBUG_DRIVER("Error retrieving the output node\n");
of_node_put(remote);
continue;
}
/*
* If the node is our TCON, the first port is used for
* panel or bridges, and will not be part of the
* component framework.
*/
if (sun4i_drv_node_is_tcon(node)) {
struct of_endpoint endpoint;
if (of_graph_parse_endpoint(ep, &endpoint)) {
DRM_DEBUG_DRIVER("Couldn't parse endpoint\n");
continue;
}
if (!endpoint.id) {
DRM_DEBUG_DRIVER("Endpoint is our panel... skipping\n");
continue;
}
}
/* Walk down our tree */
count += sun4i_drv_add_endpoints(dev, match, remote);
of_node_put(remote);
}
