drm/connector: Add helper to get a connector type name (b35f90f2) · Commits · 戴 / test

drm_connector.c contains a map of connector types (DRM_MODE_CONNECTOR_*) to name strings, but doesn't expose it. This leads to drivers having to store a similar map. Add a new drm_get_connector_type_name() helper function that return a name string for a connector type. Signed-off-by:

Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:

Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by:

Sam Ravnborg <sam@ravnborg.org> Tested-by:

Sebastian Reichel <sebastian.reichel@collabora.com> Reviewed-by:

Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by:

Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-3-laurent.pinchart@ideasonboard.com

drivers/gpu/drm/drm_connector.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -111,6 +111,21 @@ void drm_connector_ida_destroy(void)
		ida_destroy(&drm_connector_enum_list[i].ida);
		}

		/**
		* 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

include/drm/drm_connector.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -1518,6 +1518,7 @@ drm_connector_is_unregistered(struct drm_connector *connector)
		DRM_CONNECTOR_UNREGISTERED;
		}

		const char *drm_get_connector_type_name(unsigned int connector_type);
		const char *drm_get_connector_status_name(enum drm_connector_status status);
		const char *drm_get_subpixel_order_name(enum subpixel_order order);
		const char *drm_get_dpms_name(int val);

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