| Message ID | 20240827030357.1006220-3-ruanjinjie@huawei.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/rockchip: Simplified with for_each_child_of_node_scoped() | expand |
Hi, Am Dienstag, 27. August 2024, 05:03:56 CEST schrieb Jinjie Ruan: > Avoid need to manually handle of_node_put() by using __free(), and use > dev_err() to replace deprecated() DRM_DEV_ERROR(), which can simplfy > code. please make that two separate commits, one for the dev_err conversion and one for the __free() thing. The general rule of thumb is that if you need an "and" to describe your changes it's somewhat likely that things should be split. Also patch subject should be "drm/rockchip: lvds: ...." Thanks Heiko > > Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> > --- > drivers/gpu/drm/rockchip/rockchip_lvds.c | 38 ++++++++---------------- > 1 file changed, 13 insertions(+), 25 deletions(-) > > diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c > index f5b3f18794dd..700ac730887d 100644 > --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c > +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c > @@ -548,16 +548,14 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > struct drm_encoder *encoder; > struct drm_connector *connector; > struct device_node *remote = NULL; > - struct device_node *port; > int ret = 0, child_count = 0; > const char *name; > u32 endpoint_id = 0; > > lvds->drm_dev = drm_dev; > - port = of_graph_get_port_by_id(dev->of_node, 1); > + struct device_node *port __free(device_node) = of_graph_get_port_by_id(dev->of_node, 1); > if (!port) { > - DRM_DEV_ERROR(dev, > - "can't found port point, please init lvds panel port!\n"); > + dev_err(dev, "can't found port point, please init lvds panel port!\n"); > return -EINVAL; > } > for_each_child_of_node_scoped(port, endpoint) { > @@ -569,13 +567,10 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > break; > } > if (!child_count) { > - DRM_DEV_ERROR(dev, "lvds port does not have any children\n"); > - ret = -EINVAL; > - goto err_put_port; > - } else if (ret) { > - dev_err_probe(dev, ret, "failed to find panel and bridge node\n"); > - goto err_put_port; > - } > + dev_err(dev, "lvds port does not have any children\n"); > + return -EINVAL; > + } else if (ret) > + return dev_err_probe(dev, ret, "failed to find panel and bridge node\n"); > if (lvds->panel) > remote = lvds->panel->dev->of_node; > else > @@ -587,7 +582,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > lvds->output = rockchip_lvds_name_to_output(name); > > if (lvds->output < 0) { > - DRM_DEV_ERROR(dev, "invalid output type [%s]\n", name); > + dev_err(dev, "invalid output type [%s]\n", name); > ret = lvds->output; > goto err_put_remote; > } > @@ -599,7 +594,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > lvds->format = rockchip_lvds_name_to_format(name); > > if (lvds->format < 0) { > - DRM_DEV_ERROR(dev, "invalid data-mapping format [%s]\n", name); > + dev_err(dev, "invalid data-mapping format [%s]\n", name); > ret = lvds->format; > goto err_put_remote; > } > @@ -610,8 +605,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > > ret = drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_LVDS); > if (ret < 0) { > - DRM_DEV_ERROR(drm_dev->dev, > - "failed to initialize encoder: %d\n", ret); > + dev_err(drm_dev->dev, "failed to initialize encoder: %d\n", ret); > goto err_put_remote; > } > > @@ -624,8 +618,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > &rockchip_lvds_connector_funcs, > DRM_MODE_CONNECTOR_LVDS); > if (ret < 0) { > - DRM_DEV_ERROR(drm_dev->dev, > - "failed to initialize connector: %d\n", ret); > + dev_err(drm_dev->dev, "failed to initialize connector: %d\n", ret); > goto err_free_encoder; > } > > @@ -639,9 +632,8 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > > connector = drm_bridge_connector_init(lvds->drm_dev, encoder); > if (IS_ERR(connector)) { > - DRM_DEV_ERROR(drm_dev->dev, > - "failed to initialize bridge connector: %pe\n", > - connector); > + dev_err(drm_dev->dev, "failed to initialize bridge connector: %pe\n", > + connector); > ret = PTR_ERR(connector); > goto err_free_encoder; > } > @@ -649,14 +641,12 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > > ret = drm_connector_attach_encoder(connector, encoder); > if (ret < 0) { > - DRM_DEV_ERROR(drm_dev->dev, > - "failed to attach encoder: %d\n", ret); > + dev_err(drm_dev->dev, "failed to attach encoder: %d\n", ret); > goto err_free_connector; > } > > pm_runtime_enable(dev); > of_node_put(remote); > - of_node_put(port); > > return 0; > > @@ -666,8 +656,6 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, > drm_encoder_cleanup(encoder); > err_put_remote: > of_node_put(remote); > -err_put_port: > - of_node_put(port); > > return ret; > } >
diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c index f5b3f18794dd..700ac730887d 100644 --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c @@ -548,16 +548,14 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, struct drm_encoder *encoder; struct drm_connector *connector; struct device_node *remote = NULL; - struct device_node *port; int ret = 0, child_count = 0; const char *name; u32 endpoint_id = 0; lvds->drm_dev = drm_dev; - port = of_graph_get_port_by_id(dev->of_node, 1); + struct device_node *port __free(device_node) = of_graph_get_port_by_id(dev->of_node, 1); if (!port) { - DRM_DEV_ERROR(dev, - "can't found port point, please init lvds panel port!\n"); + dev_err(dev, "can't found port point, please init lvds panel port!\n"); return -EINVAL; } for_each_child_of_node_scoped(port, endpoint) { @@ -569,13 +567,10 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, break; } if (!child_count) { - DRM_DEV_ERROR(dev, "lvds port does not have any children\n"); - ret = -EINVAL; - goto err_put_port; - } else if (ret) { - dev_err_probe(dev, ret, "failed to find panel and bridge node\n"); - goto err_put_port; - } + dev_err(dev, "lvds port does not have any children\n"); + return -EINVAL; + } else if (ret) + return dev_err_probe(dev, ret, "failed to find panel and bridge node\n"); if (lvds->panel) remote = lvds->panel->dev->of_node; else @@ -587,7 +582,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, lvds->output = rockchip_lvds_name_to_output(name); if (lvds->output < 0) { - DRM_DEV_ERROR(dev, "invalid output type [%s]\n", name); + dev_err(dev, "invalid output type [%s]\n", name); ret = lvds->output; goto err_put_remote; } @@ -599,7 +594,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, lvds->format = rockchip_lvds_name_to_format(name); if (lvds->format < 0) { - DRM_DEV_ERROR(dev, "invalid data-mapping format [%s]\n", name); + dev_err(dev, "invalid data-mapping format [%s]\n", name); ret = lvds->format; goto err_put_remote; } @@ -610,8 +605,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, ret = drm_simple_encoder_init(drm_dev, encoder, DRM_MODE_ENCODER_LVDS); if (ret < 0) { - DRM_DEV_ERROR(drm_dev->dev, - "failed to initialize encoder: %d\n", ret); + dev_err(drm_dev->dev, "failed to initialize encoder: %d\n", ret); goto err_put_remote; } @@ -624,8 +618,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, &rockchip_lvds_connector_funcs, DRM_MODE_CONNECTOR_LVDS); if (ret < 0) { - DRM_DEV_ERROR(drm_dev->dev, - "failed to initialize connector: %d\n", ret); + dev_err(drm_dev->dev, "failed to initialize connector: %d\n", ret); goto err_free_encoder; } @@ -639,9 +632,8 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, connector = drm_bridge_connector_init(lvds->drm_dev, encoder); if (IS_ERR(connector)) { - DRM_DEV_ERROR(drm_dev->dev, - "failed to initialize bridge connector: %pe\n", - connector); + dev_err(drm_dev->dev, "failed to initialize bridge connector: %pe\n", + connector); ret = PTR_ERR(connector); goto err_free_encoder; } @@ -649,14 +641,12 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, ret = drm_connector_attach_encoder(connector, encoder); if (ret < 0) { - DRM_DEV_ERROR(drm_dev->dev, - "failed to attach encoder: %d\n", ret); + dev_err(drm_dev->dev, "failed to attach encoder: %d\n", ret); goto err_free_connector; } pm_runtime_enable(dev); of_node_put(remote); - of_node_put(port); return 0; @@ -666,8 +656,6 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, drm_encoder_cleanup(encoder); err_put_remote: of_node_put(remote); -err_put_port: - of_node_put(port); return ret; }
Avoid need to manually handle of_node_put() by using __free(), and use dev_err() to replace deprecated() DRM_DEV_ERROR(), which can simplfy code. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> --- drivers/gpu/drm/rockchip/rockchip_lvds.c | 38 ++++++++---------------- 1 file changed, 13 insertions(+), 25 deletions(-)