@@ -991,6 +991,30 @@ static const struct drm_prop_enum_list drm_tv_mode_enum_list[] = {
};
DRM_ENUM_NAME_FN(drm_get_tv_mode_name, drm_tv_mode_enum_list)
+/**
+ * drm_get_tv_mode_from_name - Translates a TV mode name into its enum value
+ * @name: TV Mode name we want to convert
+ * @len: Length of @name
+ *
+ * Translates @name into an enum drm_connector_tv_mode.
+ *
+ * Returns: the enum value on success, a negative errno otherwise.
+ */
+int drm_get_tv_mode_from_name(const char *name, size_t len)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(drm_tv_mode_enum_list); i++) {
+ const struct drm_prop_enum_list *item = &drm_tv_mode_enum_list[i];
+
+ if (strlen(item->name) == len && !strncmp(item->name, name, len))
+ return item->type;
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL(drm_get_tv_mode_from_name);
+
static const struct drm_prop_enum_list drm_tv_select_enum_list[] = {
{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
@@ -1864,6 +1864,8 @@ const char *drm_get_dp_subconnector_name(int val);
const char *drm_get_content_protection_name(int val);
const char *drm_get_hdcp_content_type_name(int val);
+int drm_get_tv_mode_from_name(const char *name, size_t len);
+
int drm_mode_create_dvi_i_properties(struct drm_device *dev);
void drm_connector_attach_dp_subconnector_property(struct drm_connector *connector);
As part of the command line parsing rework coming in the next patches, we'll need to lookup drm_connector_tv_mode values by their name, already defined in drm_tv_mode_enum_list. In order to avoid any code duplication, let's do a function that will perform a lookup of a TV mode name and return its value. Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- drivers/gpu/drm/drm_connector.c | 24 ++++++++++++++++++++++++ include/drm/drm_connector.h | 2 ++ 2 files changed, 26 insertions(+)