From: Xu YiPing xuyiping@hisilicon.com
As part of refactoring the kirin driver to better support different hardware revisions, this patch adds a flag to the device specific driver data so that we can conditionally register the connectors at init.
Cc: Rongrong Zou zourongrong@gmail.com Cc: David Airlie airlied@linux.ie Cc: Daniel Vetter daniel@ffwll.ch Cc: dri-devel dri-devel@lists.freedesktop.org Cc: Sam Ravnborg sam@ravnborg.org Reviewed-by: Sam Ravnborg sam@ravnborg.org Signed-off-by: Xu YiPing xuyiping@hisilicon.com [jstultz: reworded commit message] Signed-off-by: John Stultz john.stultz@linaro.org --- .../gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 1 + .../gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 43 +++++++++++++++++++ .../gpu/drm/hisilicon/kirin/kirin_drm_drv.h | 1 + 3 files changed, 45 insertions(+)
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c index 0bc2e538913b..66434c0cce6e 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c @@ -1076,6 +1076,7 @@ static struct drm_driver ade_driver = { };
struct kirin_drm_data ade_driver_data = { + .register_connects = false, .num_planes = ADE_CH_NUM, .prim_plane = ADE_CH1, .channel_formats = channel_formats, diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c index 296661ba300f..1c9658e9565e 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c @@ -97,6 +97,40 @@ static int compare_of(struct device *dev, void *data) return dev->of_node == data; }
+static int kirin_drm_connectors_register(struct drm_device *dev) +{ + struct drm_connector *connector; + struct drm_connector *failed_connector; + struct drm_connector_list_iter conn_iter; + int ret; + + mutex_lock(&dev->mode_config.mutex); + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + ret = drm_connector_register(connector); + if (ret) { + failed_connector = connector; + goto err; + } + } + drm_connector_list_iter_end(&conn_iter); + mutex_unlock(&dev->mode_config.mutex); + + return 0; + +err: + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (failed_connector == connector) + break; + drm_connector_unregister(connector); + } + drm_connector_list_iter_end(&conn_iter); + mutex_unlock(&dev->mode_config.mutex); + + return ret; +} + static int kirin_drm_bind(struct device *dev) { struct drm_device *drm_dev; @@ -116,8 +150,17 @@ static int kirin_drm_bind(struct device *dev)
drm_fbdev_generic_setup(drm_dev, 32);
+ /* connectors should be registered after drm device register */ + if (driver_data->register_connects == true) { + ret = kirin_drm_connectors_register(drm_dev); + if (ret) + goto err_drm_dev_unregister; + } + return 0;
+err_drm_dev_unregister: + drm_dev_unregister(drm_dev); err_kms_cleanup: kirin_drm_kms_cleanup(drm_dev); err_drm_dev_put: diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h index fdbfc4a90f22..95f56c9960d5 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h @@ -39,6 +39,7 @@ struct kirin_drm_data { u32 channel_formats_cnt; int config_max_width; int config_max_height; + bool register_connects; u32 num_planes; u32 prim_plane;