diff options
Diffstat (limited to 'drivers/gpu/drm/drm_connector.c')
| -rw-r--r-- | drivers/gpu/drm/drm_connector.c | 96 |
1 files changed, 76 insertions, 20 deletions
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 2166000ed057..644f0ad10671 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -112,6 +112,21 @@ void drm_connector_ida_destroy(void) } /** + * drm_get_connector_type_name - return a string for connector type + * @type: The connector type (DRM_MODE_CONNECTOR_*) + * + * Returns: the name of the connector type, or NULL if the type is not valid. + */ +const char *drm_get_connector_type_name(unsigned int type) +{ + if (type < ARRAY_SIZE(drm_connector_enum_list)) + return drm_connector_enum_list[type].name; + + return NULL; +} +EXPORT_SYMBOL(drm_get_connector_type_name); + +/** * drm_connector_get_cmdline_mode - reads the user's cmdline mode * @connector: connector to quwery * @@ -140,6 +155,13 @@ static void drm_connector_get_cmdline_mode(struct drm_connector *connector) connector->force = mode->force; } + if (mode->panel_orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN) { + DRM_INFO("cmdline forces connector %s panel_orientation to %d\n", + connector->name, mode->panel_orientation); + drm_connector_set_panel_orientation(connector, + mode->panel_orientation); + } + DRM_DEBUG_KMS("cmdline mode for connector %s %s %dx%d@%dHz%s%s%s\n", connector->name, mode->name, mode->xres, mode->yres, @@ -1139,7 +1161,8 @@ static const struct drm_prop_enum_list dp_colorspaces[] = { * coordinates, so if userspace rotates the picture to adjust for * the orientation it must also apply the same transformation to the * touchscreen input coordinates. This property is initialized by calling - * drm_connector_init_panel_orientation_property(). + * drm_connector_set_panel_orientation() or + * drm_connector_set_panel_orientation_with_quirk() * * scaling mode: * This property defines how a non-native mode is upscaled to the native @@ -2046,38 +2069,41 @@ void drm_connector_set_vrr_capable_property( EXPORT_SYMBOL(drm_connector_set_vrr_capable_property); /** - * drm_connector_init_panel_orientation_property - - * initialize the connecters panel_orientation property - * @connector: connector for which to init the panel-orientation property. - * @width: width in pixels of the panel, used for panel quirk detection - * @height: height in pixels of the panel, used for panel quirk detection + * drm_connector_set_panel_orientation - sets the connecter's panel_orientation + * @connector: connector for which to set the panel-orientation property. + * @panel_orientation: drm_panel_orientation value to set + * + * This function sets the connector's panel_orientation and attaches + * a "panel orientation" property to the connector. * - * This function should only be called for built-in panels, after setting - * connector->display_info.panel_orientation first (if known). + * Calling this function on a connector where the panel_orientation has + * already been set is a no-op (e.g. the orientation has been overridden with + * a kernel commandline option). * - * This function will check for platform specific (e.g. DMI based) quirks - * overriding display_info.panel_orientation first, then if panel_orientation - * is not DRM_MODE_PANEL_ORIENTATION_UNKNOWN it will attach the - * "panel orientation" property to the connector. + * It is allowed to call this function with a panel_orientation of + * DRM_MODE_PANEL_ORIENTATION_UNKNOWN, in which case it is a no-op. * * Returns: * Zero on success, negative errno on failure. */ -int drm_connector_init_panel_orientation_property( - struct drm_connector *connector, int width, int height) +int drm_connector_set_panel_orientation( + struct drm_connector *connector, + enum drm_panel_orientation panel_orientation) { struct drm_device *dev = connector->dev; struct drm_display_info *info = &connector->display_info; struct drm_property *prop; - int orientation_quirk; - orientation_quirk = drm_get_panel_orientation_quirk(width, height); - if (orientation_quirk != DRM_MODE_PANEL_ORIENTATION_UNKNOWN) - info->panel_orientation = orientation_quirk; + /* Already set? */ + if (info->panel_orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN) + return 0; - if (info->panel_orientation == DRM_MODE_PANEL_ORIENTATION_UNKNOWN) + /* Don't attach the property if the orientation is unknown */ + if (panel_orientation == DRM_MODE_PANEL_ORIENTATION_UNKNOWN) return 0; + info->panel_orientation = panel_orientation; + prop = dev->mode_config.panel_orientation_property; if (!prop) { prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, @@ -2094,7 +2120,37 @@ int drm_connector_init_panel_orientation_property( info->panel_orientation); return 0; } -EXPORT_SYMBOL(drm_connector_init_panel_orientation_property); +EXPORT_SYMBOL(drm_connector_set_panel_orientation); + +/** + * drm_connector_set_panel_orientation_with_quirk - + * set the connecter's panel_orientation after checking for quirks + * @connector: connector for which to init the panel-orientation property. + * @panel_orientation: drm_panel_orientation value to set + * @width: width in pixels of the panel, used for panel quirk detection + * @height: height in pixels of the panel, used for panel quirk detection + * + * Like drm_connector_set_panel_orientation(), but with a check for platform + * specific (e.g. DMI based) quirks overriding the passed in panel_orientation. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_connector_set_panel_orientation_with_quirk( + struct drm_connector *connector, + enum drm_panel_orientation panel_orientation, + int width, int height) +{ + int orientation_quirk; + + orientation_quirk = drm_get_panel_orientation_quirk(width, height); + if (orientation_quirk != DRM_MODE_PANEL_ORIENTATION_UNKNOWN) + panel_orientation = orientation_quirk; + + return drm_connector_set_panel_orientation(connector, + panel_orientation); +} +EXPORT_SYMBOL(drm_connector_set_panel_orientation_with_quirk); int drm_connector_set_obj_prop(struct drm_mode_object *obj, struct drm_property *property, |