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drm/bridge: lvds-encoder: add dev helper variable in .probe() 

Make the code easier to read and modify.

Signed-off-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111151843.11114-5-peda@axentia.se
This commit is contained in:
Peter Rosin 2019-01-11 15:19:10 +00:00 committed by Andrzej Hajda
parent c572c95c42
commit b2304b2ed6
1 changed files with 9 additions and 10 deletions
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19
drivers/gpu/drm/bridge/lvds-encoder.c
View File

@ -34,48 +34,47 @@ static struct drm_bridge_funcs funcs = {
static int lvds_encoder_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *port;
struct device_node *endpoint;
struct device_node *panel_node;
struct drm_panel *panel;
struct lvds_encoder *lvds_encoder;
lvds_encoder = devm_kzalloc(&pdev->dev, sizeof(*lvds_encoder),
GFP_KERNEL);
lvds_encoder = devm_kzalloc(dev, sizeof(*lvds_encoder), GFP_KERNEL);
if (!lvds_encoder)
return -ENOMEM;
/* Locate the panel DT node. */
port = of_graph_get_port_by_id(pdev->dev.of_node, 1);
port = of_graph_get_port_by_id(dev->of_node, 1);
if (!port) {
dev_dbg(&pdev->dev, "port 1 not found\n");
dev_dbg(dev, "port 1 not found\n");
return -ENXIO;
}
endpoint = of_get_child_by_name(port, "endpoint");
of_node_put(port);
if (!endpoint) {
dev_dbg(&pdev->dev, "no endpoint for port 1\n");
dev_dbg(dev, "no endpoint for port 1\n");
return -ENXIO;
}
panel_node = of_graph_get_remote_port_parent(endpoint);
of_node_put(endpoint);
if (!panel_node) {
dev_dbg(&pdev->dev, "no remote endpoint for port 1\n");
dev_dbg(dev, "no remote endpoint for port 1\n");
return -ENXIO;
}
panel = of_drm_find_panel(panel_node);
of_node_put(panel_node);
if (IS_ERR(panel)) {
dev_dbg(&pdev->dev, "panel not found, deferring probe\n");
dev_dbg(dev, "panel not found, deferring probe\n");
return PTR_ERR(panel);
}
lvds_encoder->panel_bridge =
devm_drm_panel_bridge_add(&pdev->dev,
panel, DRM_MODE_CONNECTOR_LVDS);
devm_drm_panel_bridge_add(dev, panel, DRM_MODE_CONNECTOR_LVDS);
if (IS_ERR(lvds_encoder->panel_bridge))
return PTR_ERR(lvds_encoder->panel_bridge);
@ -83,7 +82,7 @@ static int lvds_encoder_probe(struct platform_device *pdev)
* but we need a bridge attached to our of_node for our user
* to look up.
*/
lvds_encoder->bridge.of_node = pdev->dev.of_node;
lvds_encoder->bridge.of_node = dev->of_node;
lvds_encoder->bridge.funcs = &funcs;
drm_bridge_add(&lvds_encoder->bridge);