diff options
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/cdns-dsi.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/bridge/lvds-encoder.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/bridge/panel.c | 69 | ||||
| -rw-r--r-- | drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 3 |
4 files changed, 64 insertions, 14 deletions
diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c b/drivers/gpu/drm/bridge/cdns-dsi.c index 6166dca6be81..3a5bd4e7fd1e 100644 --- a/drivers/gpu/drm/bridge/cdns-dsi.c +++ b/drivers/gpu/drm/bridge/cdns-dsi.c @@ -956,7 +956,8 @@ static int cdns_dsi_attach(struct mipi_dsi_host *host, panel = of_drm_find_panel(np); if (!IS_ERR(panel)) { - bridge = drm_panel_bridge_add(panel, DRM_MODE_CONNECTOR_DSI); + bridge = drm_panel_bridge_add_typed(panel, + DRM_MODE_CONNECTOR_DSI); } else { bridge = of_drm_find_bridge(dev->dev.of_node); if (!bridge) diff --git a/drivers/gpu/drm/bridge/lvds-encoder.c b/drivers/gpu/drm/bridge/lvds-encoder.c index 2ab2c234f26c..e2132a8d5106 100644 --- a/drivers/gpu/drm/bridge/lvds-encoder.c +++ b/drivers/gpu/drm/bridge/lvds-encoder.c @@ -106,7 +106,8 @@ static int lvds_encoder_probe(struct platform_device *pdev) } lvds_encoder->panel_bridge = - devm_drm_panel_bridge_add(dev, panel, DRM_MODE_CONNECTOR_LVDS); + devm_drm_panel_bridge_add_typed(dev, panel, + DRM_MODE_CONNECTOR_LVDS); if (IS_ERR(lvds_encoder->panel_bridge)) return PTR_ERR(lvds_encoder->panel_bridge); diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 6cffeb4a42f2..f4e293e7cf64 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -134,8 +134,6 @@ static const struct drm_bridge_funcs panel_bridge_bridge_funcs = { * just calls the appropriate functions from &drm_panel. * * @panel: The drm_panel being wrapped. Must be non-NULL. - * @connector_type: The DRM_MODE_CONNECTOR_* for the connector to be - * created. * * For drivers converting from directly using drm_panel: The expected * usage pattern is that during either encoder module probe or DSI @@ -149,11 +147,37 @@ static const struct drm_bridge_funcs panel_bridge_bridge_funcs = { * drm_mode_config_cleanup() if the bridge has already been attached), then * drm_panel_bridge_remove() to free it. * + * The connector type is set to @panel->connector_type, which must be set to a + * known type. Calling this function with a panel whose connector type is + * DRM_MODE_CONNECTOR_Unknown will return NULL. + * * See devm_drm_panel_bridge_add() for an automatically manged version of this * function. */ -struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel, - u32 connector_type) +struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel) +{ + if (WARN_ON(panel->connector_type == DRM_MODE_CONNECTOR_Unknown)) + return NULL; + + return drm_panel_bridge_add_typed(panel, panel->connector_type); +} +EXPORT_SYMBOL(drm_panel_bridge_add); + +/** + * drm_panel_bridge_add_typed - Creates a &drm_bridge and &drm_connector with + * an explicit connector type. + * @panel: The drm_panel being wrapped. Must be non-NULL. + * @connector_type: The connector type (DRM_MODE_CONNECTOR_*) + * + * This is just like drm_panel_bridge_add(), but forces the connector type to + * @connector_type instead of infering it from the panel. + * + * This function is deprecated and should not be used in new drivers. Use + * drm_panel_bridge_add() instead, and fix panel drivers as necessary if they + * don't report a connector type. + */ +struct drm_bridge *drm_panel_bridge_add_typed(struct drm_panel *panel, + u32 connector_type) { struct panel_bridge *panel_bridge; @@ -177,7 +201,7 @@ struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel, return &panel_bridge->bridge; } -EXPORT_SYMBOL(drm_panel_bridge_add); +EXPORT_SYMBOL(drm_panel_bridge_add_typed); /** * drm_panel_bridge_remove - Unregisters and frees a drm_bridge @@ -214,15 +238,38 @@ static void devm_drm_panel_bridge_release(struct device *dev, void *res) * that just calls the appropriate functions from &drm_panel. * @dev: device to tie the bridge lifetime to * @panel: The drm_panel being wrapped. Must be non-NULL. - * @connector_type: The DRM_MODE_CONNECTOR_* for the connector to be - * created. * * This is the managed version of drm_panel_bridge_add() which automatically * calls drm_panel_bridge_remove() when @dev is unbound. */ struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev, - struct drm_panel *panel, - u32 connector_type) + struct drm_panel *panel) +{ + if (WARN_ON(panel->connector_type == DRM_MODE_CONNECTOR_Unknown)) + return NULL; + + return devm_drm_panel_bridge_add_typed(dev, panel, + panel->connector_type); +} +EXPORT_SYMBOL(devm_drm_panel_bridge_add); + +/** + * devm_drm_panel_bridge_add_typed - Creates a managed &drm_bridge and + * &drm_connector with an explicit connector type. + * @dev: device to tie the bridge lifetime to + * @panel: The drm_panel being wrapped. Must be non-NULL. + * @connector_type: The connector type (DRM_MODE_CONNECTOR_*) + * + * This is just like devm_drm_panel_bridge_add(), but forces the connector type + * to @connector_type instead of infering it from the panel. + * + * This function is deprecated and should not be used in new drivers. Use + * devm_drm_panel_bridge_add() instead, and fix panel drivers as necessary if + * they don't report a connector type. + */ +struct drm_bridge *devm_drm_panel_bridge_add_typed(struct device *dev, + struct drm_panel *panel, + u32 connector_type) { struct drm_bridge **ptr, *bridge; @@ -231,7 +278,7 @@ struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev, if (!ptr) return ERR_PTR(-ENOMEM); - bridge = drm_panel_bridge_add(panel, connector_type); + bridge = drm_panel_bridge_add_typed(panel, connector_type); if (!IS_ERR(bridge)) { *ptr = bridge; devres_add(dev, ptr); @@ -241,4 +288,4 @@ struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev, return bridge; } -EXPORT_SYMBOL(devm_drm_panel_bridge_add); +EXPORT_SYMBOL(devm_drm_panel_bridge_add_typed); diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c index 675442bfc1bd..b8b1c288f663 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c @@ -316,7 +316,8 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host, return ret; if (panel) { - bridge = drm_panel_bridge_add(panel, DRM_MODE_CONNECTOR_DSI); + bridge = drm_panel_bridge_add_typed(panel, + DRM_MODE_CONNECTOR_DSI); if (IS_ERR(bridge)) return PTR_ERR(bridge); } |