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drm/rockchip: lvds: register sub dev at rockchip lvds driver

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At lvds to other display output type product, the connector maybe
register at third party drivers, the sub dev register often be forgot,
so we add sub dev register at rockchip lvds driver.

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: If075041df8ddb1b269c903d092a6263160eff1db
This commit is contained in:
Sandy Huang
2024-01-30 19:31:03 +08:00
parent 78d7ac797f
commit 801a58d3ae
1 changed files with 18 additions and 9 deletions
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27
drivers/gpu/drm/rockchip/rockchip_lvds.c
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@@ -693,7 +693,8 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master,
struct rockchip_lvds *lvds = dev_get_drvdata(dev);
struct drm_device *drm_dev = data;
struct drm_encoder *encoder = &lvds->encoder;
struct drm_connector *connector = &lvds->connector;
struct drm_connector *connector = NULL;
struct rockchip_drm_private *private = drm_dev->dev_private;
int ret;
/*
@@ -721,8 +722,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master,
drm_encoder_helper_add(encoder, &rockchip_lvds_encoder_helper_funcs);
if (lvds->panel) {
struct rockchip_drm_private *private = drm_dev->dev_private;
connector = &lvds->connector;
ret = drm_connector_init(drm_dev, connector,
&rockchip_lvds_connector_funcs,
DRM_MODE_CONNECTOR_LVDS);
@@ -750,19 +750,28 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master,
"failed to attach encoder: %d\n", ret);
goto err_free_connector;
}
lvds->sub_dev.connector = &lvds->connector;
lvds->sub_dev.of_node = lvds->dev->of_node;
lvds->sub_dev.loader_protect = rockchip_lvds_encoder_loader_protect;
rockchip_drm_register_sub_dev(&lvds->sub_dev);
drm_object_attach_property(&connector->base, private->connector_id_prop, 0);
} else {
struct list_head *connector_list;
ret = drm_bridge_attach(encoder, lvds->bridge, NULL, 0);
if (ret) {
DRM_DEV_ERROR(lvds->dev,
"failed to attach bridge: %d\n", ret);
goto err_free_encoder;
}
connector_list = &lvds->bridge->dev->mode_config.connector_list;
list_for_each_entry(connector, connector_list, head)
if (drm_connector_has_possible_encoder(connector, &lvds->encoder))
break;
}
if (connector) {
lvds->sub_dev.connector = connector;
lvds->sub_dev.of_node = lvds->dev->of_node;
lvds->sub_dev.loader_protect = rockchip_lvds_encoder_loader_protect;
drm_object_attach_property(&connector->base, private->connector_id_prop, lvds->id);
rockchip_drm_register_sub_dev(&lvds->sub_dev);
}
return 0;